Journal of Retailing and Consumer Services 63 (2021) 102682
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Journal of Retailing and Consumer Services
journal homepage: www.elsevier.com/locate/jretconser
Shop-hop till you drop! The effect of the image gap on spillover patronage
within retail agglomerations
Sheng Wei a, Hong Huo a, Ming Xu b, Djavlonbek Kadirov c, Kim-Shyan Fam a, d, *
a
School of Management, Harbin University of Commerce, 1 Xuehai Street, Harbin, 150028, China
Yatai School of Business Administration, University of Finance and Economics, 699 Jingyue Street, Changchun, 130117, China
c
School of Marketing and International Business, Victoria University of Wellington, New Zealand
d
Department of Marketing, Romanian American University, Bucharest, Romania
b
A R T I C L E I N F O
A B S T R A C T :
吉林大学博士学位论文
Despite strong evidence for the existence of spillover effects in consumer patronage between anchor stores and
other less dominant stores in shopping malls, research on spillover patronage antecedents and its underlying
formation mechanisms appears to be sparse. The current study explores the effect of the difference between
perceived store image for anchor versus non-anchor stores on cross-shop consumer behavior drawing from
theories of spillover shopping and retail patronage. Employing a questionnaire survey and laboratory experiments to obtain data on shopping experiences, this study shows that the smaller the image gap between an
anchor store and non-anchor stores, the greater the likelihood of non-anchor store patronage by customers
originally attracted to the anchor store. This study also finds that when customers attracted by the anchor store
experience greater self-image congruity with non-anchor stores, the extent of spillover patronage increases, while
this happens irrespective of whether they engage or do not engage in purchase in the anchor store. This study
provides a viable theoretical basis for facilitating decision-making in both planning and design of effective retail
agglomerations.
Keywords:
Spillover effects
Spillover shopping
Shop patronage
Spillover patronage
Retail agglomerations
Anchor shops
Shopping mall
1. Introduction
This research aims to explore antecedents of spillover shopping as
well its potential formation mechanisms and boundary conditions
within retail agglomerations containing big-box anchor stores and other
satellite retail shops. Understanding spillover shopping patterns is of
paramount importance (Ailawadi et al., 2010; Arcidiacono et al., 2019;
Artz and Stone, 2006; Chung et al., 2021; Daunfeldt et al., 2019; Merriman et al., 2012), since the nature and dynamics of spillover shopping
affects not only how retail agglomerations are planned (Teller and
Schnedlitz, 2012), but also the effectiveness of local policies and subsidies to attract big-box retailers (Daunfeldt et al., 2019; Greenstone
et al., 2010), local growth and employment (Daunfeldt et al., 2019), and
economies of agglomeration (Chung and Kalnins, 2001; Greenstone
et al., 2010; Teller and Schnedlitz, 2012). Although most researchers
tend to agree that spillover shopping as a phenomenon exists, the debate
on the nature of its effects is still far from being finalised with some
researchers offering evidence for mixed effects (Artz and Stone, 2006;
Chung et al., 2021; Paruchuri et al., 2009), while others claiming positive spillover effects (Basker, 2005; Sobel and Dean, 2008; Shoag and
Veuger, 2018), whereas a majority of researchers offering evidence of
negative spillover effects (Ailawadi et al., 2010; Arcidiacono et al.,
2019; Artz and Stone, 2006; Haltiwanger et al., 2010; Merriman et al.,
2012; Stone, 1997). Although consumers’ psychographic traits and individual perceptions play a significant role in how spillover shopping
patterns are shaped in any given locality, most of the existing research
does not consider perceptual parameters of shopping spillover. Rather,
the existing research estimates spillover effects based on foot traffic
(Chung et al., 2021), shop entries and exits (Paruchuri et al., 2009;
Merriman et al., 2012), jobs (Basker, 2005), prices (Basker, 2007), the
number of small businesses and establishments (Haltiwanger et al.,
2010; Sobel and Dean, 2008; Shoag and Veuger, 2018; Stone, 1997),
store merchandise movement data (Ailawadi et al., 2010), and retail
revenues and sales (Arcidiacono et al., 2019; Artz and Stone, 2006).
Hence, additional avenues still exist for further exploring shopping
spillover effects based on consumer perceptions and psychographics.
* Corresponding author. School of Management, Harbin University of Commerce, 1 Xuehai Street, Harbin, 150028, China.
E-mail addresses: victory-wei@163.com (S. Wei), huohong1963@126.com (H. Huo), xuming@jlufe.edu.cn (M. Xu), djavlonbek.kadirov@vuw.ac.nz (D. Kadirov),
kimfam88@gmail.com (K.-S. Fam).
https://doi.org/10.1016/j.jretconser.2021.102682
Received 30 November 2020; Received in revised form 13 June 2021; Accepted 15 July 2021
Available online 10 August 2021
0969-6989/© 2021 Elsevier Ltd. All rights reserved.
S. Wei et al.
Journal of Retailing and Consumer Services 63 (2021) 102682
2. Theoretical background
It is known that retail agglomerations offer consumers increased
possibilities to engage in cross-shop product comparisons as well as
multi-purpose shopping trips (Arentze et al., 2005; Teller and Elms,
2012). Within a typical shopping mall, a planned retail agglomeration
(Teller and Thomson, 2012), stores are organized within a bounded
locality through deliberate design and planning, which entail substantial
benefits to these stores from consumer shop-hopping giving rise to
economies of agglomeration (Teller and Schnedlitz, 2012). Hence, the
most common source of agglomeration benefits is a spillover of consumer demand arising from concentration of multiple shops in a single
location. Adopting the perspective of the shopper, we label this type of
externality as customer spillover patronage (Gatzlaff et al., 1994).
Reflecting the psycho-social aspect of spillover shopping underscored by
individual consumers’ perceptions and experiences, the concept of
spillover patronage refers to a willingness of the customer of an anchor
store to scout adjacent areas and patronize less-dominant stores in
nearby locations, thus enabling these stores to obtain additional customers (Wei and Hou, 2016; Wei and Wu, 2013). That is to say that we
imagine positive spillover patronage, whereby the entry or existence of
an anchor store might lead to an increase of customer traffic in a
non-anchor store located nearby in the long-term (Chung et al., 2021),
thus reflecting the consumer’s additional serendipitous, unintended
patronage intent. The main assumption we maintain in this research is
that the deeper the willingness to effect spillover patronage at an individual level, the greater the extent of total benefits accrued to the retail
agglomeration as a whole. Therefore, within the limited boundaries of a
shopping mall, improving the intent of spillover patronage at an individual level can be seen as an effective means to enhance the shopping
mall’s effectiveness.
The following research questions guide the current study. What are
the factors that affect spillover patronage? What mechanisms underlie
spillover patronage effects and what conditions characterize spillover
patronage and its likelihood of occurrence? In the existing literature,
there are no clear answers or viable explanations to these specific
questions. As mentioned earlier, the spillover shopping literature focuses on non-psychometric factors, whereas another stream of research
examines the effect of store image on customer patronage within a single
store (Roy and Ghosh, 2013; Burlison and Oe, 2018). In the latter group
of research, customer store patronage is explained via self-image
congruence theory combined with customers’ self/store image perceptions (Hosany and Martin, 2012; Sung and Huddleston, 2018). These
causal relationships involving store/self-image congruence and
patronage pertain to customer behavior in a single store, but these do
not directly explain why customers cross-patronize different stores. In
addition, store image is considered to be one of the important factors
(Baker et al., 1994; Wei and Wu, 2013; Diallo and Cliquet, 2016) which
might significantly affect spillover patronage (Pan and Zinkhan, 2006;
Belwal and Belwal, 2017; Burlison and Oe, 2018; Wange, 2012).
This research contributes to the existing body of knowledge in the
following ways. First, it explores the experiential aspect of spillover
shopping (Chung et al., 2021; Daunfeldt et al., 2019), which is
re-conceptualized as spillover patronage (Wei and Hou, 2016). Second,
it extends the existing research on store patronage into the context of
cross-patronization among multiple stores within a single shopping mall
(Roy and Ghosh, 2013; Burlison and Oe, 2018). Third, it provides evidence that the perceived image gap between the anchor store and
respective non-anchor shops represents a significant antecedent of
spillover patronage, whereas multiple self-congruity mediates the effect
of the image gap on spillover patronage. Moreover, this research shows
that the purchase incidence in an anchor store moderates the effect of
the image gap on spillover patronage.
2.1. From general spillover shopping to personal spillover patronage
Spillover shopping is a specific type of brand externality (Padela
et al., 2020) related to the symbolism of brand images within broader
marketing systems (Kadirov and Varey, 2011; Conejo and Wooliscroft,
2015). Padela et al. (2020) review mostly negative externalities pertaining the symbolic nature of brands which allows them to develop an
insightful typology of brand effects. Moreover, the existing literature
explores the following types of spillover effects: advertising spillover
between parent brand and sub-brand within the same brand family
(Balachander and Ghose, 2003), spillover of one attribute to another
(Ahluwalia et al., 2001), and spillover among advertisements of
different brands (Erdem and Sum, 2002). In addition, research on the
spillover effect of brand scandals is particularly extensive (John et al.,
1998; Lei et al., 2008). Research shows that sub-brands generally do not
weaken beliefs about parent brands (John et al., 1998), whereas the
strength and direction of association between brands influence the
extent of brand scandal spillover (Lei et al., 2008). In addition, research
on spillover in brand scandals appears to be inconclusive: a brand in
crisis might entail positive spillover effects thus indirectly affecting
competitors (Reilly and Hoffer, 1983), negative spillover effects (Roehm
and Tybout, 2006), or both positive and negative spillover effects
(Dahlén and Lange, 2006). Another comparable concept to spillover
shopping is communicative spillover. In contrast to shopping spillover,
communicative spillover is purely informational. It “refers to the extent
to which a message influences beliefs related to attributes that are not
contained in the message” (Ahluwalia et al., 2001, p.458). Research on
communicative spillover effects provide a good theoretical basis for
conceptualizing spillover patronage. Communicative spillover between
brands is closely related to spillover patronage because of similarities
between retail brands (i.e. stores) and brands in general. To sum up,
spillover effect between brands may depend on different factors
including the focal brand’s characteristics, the recipient brand’s characteristics, and the extent to which these brands are perceived to be
similar (Ahluwalia et al., 2001).
Research on spillover effects in consumers’ shopping behavior
mostly deals with the impact of the big-box retailers’ entry on incumbent smaller retailers (Ailawadi et al., 2010; Arcidiacono et al., 2019;
Artz and Stone, 2006; Chung et al., 2021; Daunfeldt et al., 2019; Merriman et al., 2012). In general, research indicates that spillover shopping
effects are variable in nature depending on consumer preferences,
product category, spatial/location factors, and temporal factors. Big box
retailers with strong brand image and recognition, such as Walmart and
IKEA, tend to create significant spillover shopping effects, both positive
and negative, through permanently altering consumer preferences (Artz
and Stone, 2006; Daunfeldt et al., 2019; Haltiwanger et al., 2010;
Merriman et al., 2012). A number of researchers use aggregate sales data
to pinpoint the nature of spillover effects. For instance, Artz and Stone
(2006) studied the spillover effects of Walmart’s entry on the sales of
other shops in smaller towns and they found that the total per capita
sales of services, restaurants, and apparel stores increased post-entry,
while the sales of food and buildings materials declined. These findings supported Stone’s (1997) earlier results. In the same vein, Arcidiacono et al. (2019) show a significant negative spillover effect of
Walmart’s entry on the revenues of other incumbent supermarkets. In
the same vein, Chung et al. (2021) show that both positive and negative
spillover effects of a mega-shopping centre on smaller retail shops may
vary depending on spatial location, temporal dynamics (short-term
versus long-term), and across retail types. The dominant shop tends to
have negative short-term effect on general merchandise retailers, while
its short-run effect on bars/restaurants proved to be positive. However,
the authors find that in the long-run the negative effect is transformed
into a positive effect for all types of retailers (Chung et al., 2021).
The extant research employs different methods to pinpoint spillover
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Journal of Retailing and Consumer Services 63 (2021) 102682
shopping. Most of these methods rely on aggregated or retailer specific
data including foot traffic (Chung et al., 2021), sales and revenues (Artz
and Stone, 2006; Daunfeldt et al., 2019), new shop entries and exits
(Paruchuri et al., 2009; Merriman et al., 2012), jobs and prices (Basker,
2005, 2007), the number of small businesses and establishments (Haltiwanger et al., 2010; Sobel and Dean, 2008; Shoag and Veuger, 2018;
Stone, 1997) and store merchandise movement data (Ailawadi et al.,
2010). However, what is missing is the analysis that looks into consumers’ personal experiences and perceptions related to spillover
shopping. Consumers shop browsing behavior (Reynolds et al., 2012),
store image formation (Pan and Zinkhan, 2006; Belwal and Belwal,
2017; Burlison and Oe, 2018) underlie the consumer level aspects of
shopping spillover. There appears to be the need to conceptualize the
psycho-social aspect of spillover shopping by using a slightly different
label. Hence, we introduce the concept of spillover patronage. Through
highlighting individual consumers’ perceptions and experiences, the
concept of spillover patronage refers to a psychological willingness,
intent, process and tendency of the customer of an anchor store to scout
adjacent areas, browse and patronize less-dominant stores in nearby
locations, thus enabling these stores to obtain additional customers (Wei
and Hou, 2016; Wei and Wu, 2013).
be an important antecedent in explaining spillover patronage. In summary, we note that the existing studies explain spillover shopping either
at the level of individual store or retail agglomeration, while overlooking individual perceptions based spillover patronage.
Spillover patronage is related to the concept of retail agglomeration
patronage. The latter concept involves the structure of retail agglomeration image and its influence on shoppers’ attitudes and behaviors
(Nevin and Houston, 1980; Chebat et al., 2010). It also comprises of
theory of self-congruence as it relates to retail agglomeration patronage
(Ha and Im, 2012). Neither the concept of store patronage nor that of
retail agglomeration patronage, taken individually, take into account
the existence of retail demand externalities. These concepts tend to
overlook the incidence of customer spillover patronage, where shops
could deliberately adopt corresponding marketing strategies to increase
the number of such customers. Tamura Masanori (2014) is recognized as
a pioneer of investigations on spillover patronage. He concludes that the
drawing power of a retail agglomeration depends on anchor stores, that
is to say, the customers attracted by anchor stores have a spillover
impact on specialty stores (Tamura Masanori, 2014). Wang and Zhang
(2012) conducted an exploratory research on the influence factors of
spillover patronage. They conclude that the effect of spillover patronage
indeed exists between stores and that spillover customers flow from
anchor stores to specialty stores. Nevertheless, this existing literature
fails to provide a reasonable explanation for the formation mechanisms
of spillover patronage.
2.2. Theoretical underpinnings of spillover patronage
Spillover patronage, as a focal phenomenon, can be explained based
on the following theories: spreading activation theory, accessibilitydiagnosticity theory and assimilation-contrast theory. Spreading activation theory sees memory as a network of nodes interconnected by
links, where a series of nodes can induce associations with other nodes
(Collins and Loftus, 1975). When two nodes in the consumer’s mind are
strongly connected, one can activate the other (Collins and Loftus,
1975). Shoppers store information about stores in their memory, while
the stores they have visited would not be completely erased in their
memories. According to spreading activation theory, when a store in
memory is connected with other stores appearing in front of the
customer, the information cues of the store in memory activates a
perception of the current store, thus linking potential patronage
behavior of these two stores. Furthermore, accessibility-diagnosticity
model (Feldman and Lynch, 1988) is also used to explain spillover
patronage effects (e.g. Janakiraman et al., 2009; Wang et al., 2012). This
model mainly includes two elements. The first element is perceptual
diagnostic ability of former judgment for latter judgment, where the
correctness of recognition in the latter judgment depends on the former
judgment. This element explains how two assessments relate to each
other according to consumer suggestion theory. The second element is
accessibility, which means that what matters is not only accessibility of
the previous judgment in memory, but also the accessibility of an
alternative input to the latter judgment. Stores in a shopping mall tend
to be interrelated (e.g. adjacent locations, similar merchandise, similar
atmosphere, etc.). If relevant cues of store A are diagnostic about store B,
then shoppers may infer relevant characteristics of store B from relevant
cues about store A, which can potentially bring about spillover
patronage. Moreover, assimilation-contrast theory holds that people
unconsciously compare similar things around them for the purpose of
evaluation or decision. An assimilation-contrast process produces
assimilation effect involving an expected convergence of an object and
standards, as well as the contrast effect related to deviation between the
object and the corresponding standards. If shoppers pay attention to
similarities among stores, similar cues among stores may become activated, which would eventually lead to assimilation effect. On the contrary, if people pay more attention to differences among stores,
contradictory cues among stores would be activated, which would
eventually lead to contrast effect. These three theories underscore a
common variable, that is, image differences between the anchor store
and other stores. It can be seen that both theoretical deduction and the
existing conclusions lead us to believe that the image difference might
3. Conceptual model and hypotheses
Based on the three theories discussed in the previous section, we
offer a conceptual model of spillover patronage depicted in Fig. 1. The
conceptual model exhibits the antecedents and moderators explaining
spillover patronage in the context of retail agglomerations.
We introduce store image gap as the main antecedent in the model.
The effect of this antecedent can be justified through the following arguments. In retail research, Martineau (1958) introduced the concept of
store image. A number of scholars pursued the study of store image
taking different perspectives (Baker et al., 1994; Wei and Wu, 2013;
Diallo and Cliquet, 2016). These studies showed that store image had an
effect on customers’ store choice and patronage intention (Pan and
Zinkhan, 2006; Belwal and Belwal, 2017; Burlison and Oe, 2018).
Shoppers who patronize anchor stores retain some information about
the anchor store in their mind, which means that information cues
relating to the anchor store would be accessible. Research shows that
simply browsing a store creates deep psychological effects such as sensory stimulation, self-gratification, and learning (Reynolds et al., 2012;
Westbrook and Black, 1985). Whether the shopper will use the suggestive information of the anchor store for the decision of patronizing the
non-anchor store also depends on the diagnosability of the information.
If the shopper judges the acceptable similarity or causality between the
two stores according to his/her knowledge background, the information
cue will be diagnosable, and then it turns into the cue that influences
decision-making (Wang et al., 2012). Therefore, perceived similarity
between anchor stores and non-anchor stores becomes the precondition
of diagnostic information cues. When the image of the two stores are
similar, i.e. the image gap is small, the information cues of the anchor
Fig. 1. Conceptual model.
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S. Wei et al.
Journal of Retailing and Consumer Services 63 (2021) 102682
store will have accessibility and diagnosticity at the same time. Based on
the theory of spreading activation, the anchor store cues in the shopper’s
mind can activate the cognition of non-anchor stores, and then produce
spillover patronage. Therefore, we propose that:
multiple self-congruity on spillover patronage.
There are two potential outcomes of a completed purchase within an
anchor store: experiential and physical. Experientially, a completed
purchase might create feelings of satisfaction, enjoyment, and accomplishment (Reynolds et al., 2012; Westbrook and Black, 1985). Physically, the consumer may end carrying heavy or bulky goods after
shopping in the anchor store. These two outcomes might hinder further
browsing and shopping behavior. Especially, the urge to finalize shopping and leave the shopping centre would be great if the image gap is
significantly large. Such hindrance may not be a problem when the
image gap is small, since browsing would be considered as a continuation of the same shopping experience. If no purchase occurred, then the
consumer’s feeling of accomplishment would not exist. In this case,
image gap’s effect on spillover patronage will be more or less
attenuated.
H1. The smaller the extent of perceived image gap between an anchor
store and a non-anchor store, the greater the extent of spillover
patronage.
In the model, the second antecedent is multiple self-congruity. Since
early times, the self-concept was introduced as a factor explaining
patronage behavior (Dolich, 1969). Self-image congruence theory posits
that consumers will match store image with their own self-image, while
experiencing store-image/self-image congruence (Sirgy, 1982; Chebat
et al., 2006). Self-image congruence can affect store preference (Chebat
et al., 2006), as well as store satisfaction and loyalty (Hosany and
Martin, 2012). If the shopper experiences greater self-image congruence
with an anchor store, they may also experience greater self-image
congruence of non-anchor stores, because the real self-image of individuals is relatively stable (Onkvisit and Shaw, 1987). This might
make three images, namely the anchor store’s image, the non-anchor
store’s image and the shopper’s self-image, reach a congruence. We
call it multiple self-congruity. According to self-image congruence theory, customers attracted by the anchor store experience higher
self-image congruence when their self-image matching the typical
customer image of anchor stores. At the same time, if they experience
higher self-image congruence with the non-anchor store, then they are
likely to patronize this non-anchor store (Hosany and Martin, 2012;
Sung and Huddleston, 2018), which will bring about spillover
patronage. Therefore, we propose that:
H5. Purchase in anchor store will amplify the negative effect of image
gap on spillover patronage.
4. Study one
4.1. Research design
The main purpose of Study One is to test the effect of store image gap
on spillover patronage through intercept interviews in a shopping mall.
Store image is measured on the basis of shopper perceptions about the
focal anchor store and the adjacent non-anchor stores. The store image
construct includes the items derived from Baker et al. (1994). Spillover
patronage is measured on the basis of the items proposed by Wang and
Zhang (2012). All items are 5-point Likert scales (refer to Table 1).
In order to neutralize a potential order bias, we create two versions of
the same questionnaire. Version 1 positions the items relating to anchor
store image first, followed by the items relating to non-anchor stores’
image. Version 2 reverses the order: it presents the items relating to nonanchor stores’ image first, then followed by the items relating to anchor
store image. The data is collected from the following areas: a) Wanda
Plaza in Changchun City (Version 1) where the focal anchor store was
H&M and non-anchor stores were small retailers located close to the
anchor store such as Hotwind; b) Wanda Plaza in Changchun City
(Version 2) where the anchor stores are Huarun Wanjia Supermarket
and Big Player and non-anchor stores were small stores located in
proximity to such as Hotwind and Watsons; c) Xintiandi Shopping
Center where the anchor stores were Xintiandi Department Store,
H2. The greater the extent multiple self-congruity, the greater the
extent of spillover patronage.
Any discrepancy between the images of anchor stores and nonanchor stores hinders anchor/non-anchor self-image congruence, especially, when one considers the stability of the shoppers’ self-image
(Onkvisit and Shaw, 1987). Consumers’ self -identification with a
retailer can be both cognitive and affective (Wolter and Cronin, 2016;
Wolter et al., 2017). A greater image gap might lead to a strong negative
affective reaction in terms of a customer’s identification with several
retailers (Wolter and Cronin, 2016). According to assimilation-contrast
theory (De Bruyn and Prokopec, 2017; Vogel et al., 2020), the additional information received by the consumer should be congruent with
the his/her established beliefs to be easily assimilated. If the gap between the new information and the established perceptions is significantly large, the new information will be rejected. Extending this to the
retailing context, we argue that when the images of anchor stores and
non-anchor stores are similar, as long as the shopper experiences
self-image congruence with both anchor stores and non-anchor stores,
assimilation effect will occur, and then the shopper will experience
multiple self-congruity. So, the smaller image gap makes it easier for
shoppers to form combined anchor/non-anchor self-image congruence.
Table 1
Results of measurement model for Study 1.
Items
T
AVE
CR
Cronbach’s
0.531
0.818
0.816
0.633
0.873
0.880
0.748
0.856
0.859
α
Anchor Store Image
This store is a pleasant
place to shop.
The store has a pleasant
atmosphere.
This store is clean.
This store is attractive.
Non-anchor Store
image
These stores are a
pleasant place to shop.
These stores have a
pleasant atmosphere.
These stores are clean.
These stores are
attractive.
Spillover patronage
I patronize these small
stores after coming out
of the anchor store.
I shop in these stores.
H3. The relatively smaller image gap leads a greater extent of multiple
self-congruity.
The incident of a completed purchase in a shop has a significant effect on consumers subsequent shopping and browsing behaviors (Reynolds et al., 2012). Reynolds et al. find that customers who make a
purchase tend to have greater repatronage intention and greater repatronage anticipation compared to other consumers who do not make a
purchase. We assume that such repatronage intentions will spill over to
other local retailers if multiple-self congruity level is high. Moreover,
consumers are more likely to value anonymous browsing afforded by
big-box retailers (Noble et al., 2006). Anonymously browsing and purchasing in anchor store might create deep satisfaction in the customer,
who might want to repeat such experiences in similar stores in the vicinity. Hence,
H4.
Estimate
Purchase in anchor store will amplify the positive effect of
4
0.667
–
0.799
14.957
0.759
0.682
14.481
13.322
0.817
–
0.765
18.788
0.752
0.844
18.481
21.471
0.854
–
0.876
17.618
S. Wei et al.
Journal of Retailing and Consumer Services 63 (2021) 102682
Carrefour Supermarket, Suning Electrical Appliances and the nonanchor stores located in close proximity such as Watsons and Selected.
To make sure that respondents represent individuals who are originally
attracted to the anchor store, they were approached in the vicinity of the
anchor store, specifically as they came out of the store. Then, as a filter
question, they were asked if they specifically came to shop at the anchor
store and if they were attracted by this store. If the answers were ‘yes’,
they were invited to complete the questionnaire. In the process, we
obtained 260 full questionnaires based on Version 1. Out of them 89
responses were from males (34.2%) and 171 responses were from females (65.8%). Further, we collected 270 responses based on Version 2
questionnaire, where 124 were from males (45.9%) and 146 were from
females (54.1%). In total, we have collected 530 valid responses.
5.1. Experimental design
In order to avoid bias caused by the subject’s familiarity with the
experimental materials, most of the videos were shot in shopping malls
and department stores outside the experimental city. A small part of the
videos came from the Internet. A total of 56 videos were shot/collected,
totaling 114 min. Also, 46 pictures depicting apparel and fashion stores
were downloaded from websites such as Nitu. These images were
inserted into the videos in the form of animation. The videos were
professionally edited by audiovisual experts using Adobe Premiere Pro
software.
To pilot test the experimental settings and in order to confirm
whether the subjects can satisfactorily complete the questionnaire according to the video content after watching the video, we invited 11
marketing specialists (academics, researchers, practitioners) to watch
the videos, and then fill out the pilot questionnaire. They all expressed
that they had no difficulty completing the questionnaire after being
exposed to the video content. Based on some of their suggestions, several
items were further improved.
The video of the anchor store lasts 170 s. It consists of three parts: 1)
the shopping mall orientation map and explanation (25s); 2) the
description (which manipulates the factors such as self-image congruence of the anchor store, payment ability, time and social settings (20s),
and 3) the video of the anchor store (125s), including the general outline
of atrium, layout, corridor, stores on both sides of the corridor (45s) and
merchandise quality, quantity, display, and models (80s). The video
content and structure of upscale anchor stores and downscale anchor
stores are kept similar. The video of non-anchor stores lasts 90 s. It
consists of two parts: 1) the shopping mall map and the explanation of
the location of non-anchor stores (20s), and 2) the video of non-anchor
stores (70s) including the path from the anchor store to non-anchor
stores (8s), merchandise quality, quantity, display, and models (62s).
The video content and structure of upscale non-anchor stores and
downscale non-anchor stores are designed to be identical.
The calculation and measurement of store image and spillover
patronage was the same as in the previous study. Self-image congruence
was measured by the three items from Sirgy et al. (1997). The questionnaire was presented to the subjects in the form of 5-point Likert
scales. The incidence of purchase in the anchor store was measured by
asking the following question: “Would you have bought anything by the
time you have finished shopping in this store?” Store image gap was
calculated using the method described in the preceding section.
4.2. Data analysis
4.2.1. Testing the measurement model and calculating store image gap
We perform confirmatory factor analysis comprising the following
constructs: anchor store image, non-anchor store image, and spillover
patronage. The analysis shows that the model fits well (χ2 = 79.542,df
= 27,p < 0.05, χ2/df = 2.946,GFI = 0.973,AGFI = 0.944,CFI =
0.981,RMSEA = 0.061). Based on the cutoff criteria proposed by Hu
and Bentler (1999), most indices appear to be excellent apart from
RMSEA which appears to be acceptable (refer to Table 1). Table 1 indicates that the standardized factor loadings of all items are greater than
0.6, and significant. Also, the reliability and validity measures appear to
be satisfactory: AVEs are greater than 0.5, CRs are greater than 0.7, and
Cronbach’s Alphas are greater than 0.7. In addition, we calculate store
image gap through averaging the absolute values of differences between
the corresponding items of anchor store image and non-anchor store
image. The following formula is used:
∑4
|Anchor store image − Non anchor store image|
Store Image Gap = n=1
4
We use store image gap as an independent variable and spillover
patronage as a dependent variable to perform regression analysis. The
results of the analysis are given in Table 2.
Version 1 data show that store image gap has a significant effect on
spillover patronage (β=-0.381, p < 0.001). The same pattern can be seen
in Version 2 data as well (β=-0.461, p < 0.001). The pooled data provides a more consistent result. The negative sign indicates that the
smaller the image gap, the greater the extent of spillover patronage.
These results provide sufficient evidence in support of H1.
5.2. Testing the measurement model for study 2
5. Study two
We conduct confirmatory factor analysis using AMOS. The model fits
well (χ2 = 31.02, df = 20, p = 0.055, (χ2/df = 1.551, GFI = 0.952, AGFI
= 0.892, CFI = 0.974, RMSEA = 0.065, PClose = 0.268). The model fit
has improved significantly after we have accounted for some covariances between error terms of image gap.
The standard factor loadings of the items are greater than 0.50 and
these are significant (see Table 3a). The CR values of all constructs are
greater than 0.70, while the AVE values of the constructs are greater
than 0.50. The convergent validity of the constructs are assessed by
synthesizing the standardized factor loadings, CR values and AVE values
(Bagozzi and Yi, 1988). On the basis of these values we confirm the
satisfactory reliability for each construct.
Table 3b shows that there appears to be no major concern regarding
We design a set of 2 (anchor store image: upscale vs downscale) x 2
(non-anchor store image: upscale vs downscale) factorial experiments.
In these experiments, both anchor store image and non-anchor store
image are manipulated by videos specifically developed for this purpose.
In these experiments, the experimental subjects were college students.
There were 132 subjects in total: 57 males (43.18%) and 75 females
(56.82%). After watching videos, the participants were asked to imagine
that they came to specifically shop at the anchor store. Then, they
answered questions regarding their perception of multiple selfcongruity, spillover patronage and their purchase behavior in the anchor store.
Table 2
Effect of store image gap on spillover patronage.
Version 1
Version 2
Full sample
Standardized coefficient
t
sig
R2
F
Freedom
−0.381
−0.461
−0.401
−6.609
−8.510
−10.053
.000
.000
.000
0.145
0.213
0.161
43.685
72.417
101.058
1/258
1/268
1/528
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Journal of Retailing and Consumer Services 63 (2021) 102682
17.565, p < 0.001) and between upscale anchor store image and
downscale non-anchor store image (Manchor = 2.820, Mnon-anchor =
3.945, t = −8.470, p < 0.001). These tests show that anchor store image
and non-anchor store image have been successfully manipulated.
Table 3a
Confirmatory factor analysis results for Study 2.
Measuring items
Estimate
Store Image Gap
Image Gap 1
Image Gap 2
Image Gap 3
Image Gap 4
Multiple Self-Congruity
I am identical to the typical
customers of these stores.
I’m not at all like any of the
typical customers in
these stores.
I feel that my personal
profile is similar to the
typical customers in
these stores.
Spillover Patronage
I patronize these small
stores after coming out of
the anchor store.
I shop in these stores.
t
value
0.608
0.787
0.720
0.754
–
3.910
3.768
3.844
0.765
–
0.690
4.879
1.006
5.947
0.719
–
0.836
6.536
AVE
CR
Cronbach’s
0.519
0.811
0.785
α
5.4. Hypothesis tests
0.691
0.867
0.771
0.608
0.755
0.749
5.4.1. The effect of image gap on spillover patronage
The factorial variance analysis of the effect of anchor versus nonanchor store image on spillover patronage shows that the main effect
of anchor store image (F(1, 128) = 4.646, p < 0.05) as well as the main
effect of non-anchor store image (F(1, 128) = 63.710, p < 0.001) are
significant. Also, the interaction effect between anchor store image and
non-anchor store image is significant (F(1, 128) = 116.759, p < 0.001).
That is to say, spillover patronage is affected not only by anchor store
image, but also by non-anchor store image. Also, these image perceptions interact to create an additional effect. Fig. 2 shows that when
anchor store image and non-anchor store image are at the same level, the
extent of spillover patronage is relatively high. Spillover patronage is
low when anchor store image and non-anchor store image are at
different levels. That is to say, that the smaller the gap between the
images of the anchor store versus the non-anchor store, the greater the
extent of spillover patronage. This lends evidence for the support of H1.
Further regression analysis is used to test the effect of image gap on
spillover patronage (see Table 4). F values of Model 1 and Model 3 are
significant at 0.001 level, and Model 2 was significant at 0.10 level. The
results of the regression analysis further support the hypothesis of the
significant effect of image gap on spillover patronage (β = −0.464, p <
0.001). Moreover, anchor/non-anchor multiple self-congruity has a
positive effect on the spillover patronage (β = 0.368, p < 0.001). This
finding provides evidence that lends support for H2. We also hypothesized that image gap affects the formation of anchor/non-anchor multiple self-congruity. The results support H3 (β = -0.150, p < 0.10).
To further test the formation mechanisms of spillover patronage, we
employed Process Procedure Model 4 (Version 3.5.3 for SPSS) to
examine the mediating effect of multiple self-congruity on the association between image gap and spillover patronage (Hayes, 2018). The test
confirms the significant negative direct effect of image gap on spillover
patronage (t = −5.68, p < 0.001, LLCI -0.621 ULCI -0.300), thus once
more confirming H1. In addition, it confirms the direct effect of multiple
self-congruity on spillover patronage (t = 5.117, p < 0.001, LLCI 0.257
ULCI 0.581), thus confirming H2. Hayes’ procedure has also confirmed
H3, although the effect appears to be marginally significant (t = −1.73,
p = 0.853, LLCI -0.291 ULCI -0.066). However, the assumption of
mediation did not hold, since the indirect effect of image gap on spillover patronage was not significant (b = −0.062, se = 0.038, BootLLCI
Table 3b
Correlations between the constructs and the square root of AVE.
Store Image Gap
Multiple SelfCongruity
Spillover Patronage
a
Store Image
Gap
Multiple Selfcongruity
0.720
−0.108
0.831
−0.613
a
0.381a
Spillover
patronage
0.780
Indicates α < 0.001.
discriminant validity. Regarding the potential issue of common method
bias, we perform Harman single factor analysis. We find that the first
component’s total variance explained is equal to 38.11% which is less
than the 40% criterion. Combined with the confirmatory factor analysis
results, we conclude that there is no issue of a single source of variance
emerging which could have been attributed to the use of a common
method.
5.3. Store image manipulation test
We use independent samples t-tests to examine the differences between a) upscale anchor store image and downscale anchor store image;
b) upscale non-anchor store image and downscale non-anchor store
image. The results show that there is a significant difference between
upscale anchor store image and downscale anchor store image (Mupscale
= 4.181, Mdownscale = 2.909, t = 11.728, p < 0.001). Also, there is a
significant difference between upscale non-anchor store image and
downscale non-anchor store image (Mupscale = 4.131, Mdownscale =
2.577, t = 14.157, p < 0.001). In addition, we expect no significant
differences between upscale (downscale) anchor store image and upscale (downscale) non-anchor store images. The paired sample t-tests
showed that there was no significant difference between upscale anchor
store image and upscale non-anchor store image (Manchor = 4.050, Mnonanchor = 4.300, t = −1.789, p > 0.05). Also, there was no significant
difference between downscale anchor store image and downscale nonanchor store image (Manchor = 3.000, Mnon-anchor = 2.823, t = 1.455,
p > 0.05). In addition, we expected significant differences between
upscale (downscale) anchor store image and downscale (upscale) nonanchor store image. A paired sample t-test shows that there are significant differences between upscale anchor store image and downscale
non-anchor store image (Manchor = 4.316, Mnon-anchor = 2.353, t =
Fig. 2. The effect of store type on spillover patronage.
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Journal of Retailing and Consumer Services 63 (2021) 102682
The effect of the interaction term is also significant at 0.01 level
(Table 5). These results show that purchase in anchor store moderates
the effect of image gap on spillover patronage. H5 is supported. We also
perform Hayes’ process procedure to test this hypothesized moderation
effect. This test confirms our prior finding that the moderating effect of
purchase in anchor store on the image gap/spillover patronage relationship is significant (t = −0.279, p < 0.01, LLCI -0.454 ULCI -0.104).
The moderating effect is negative. This means that anchor store purchase amplifies the negative effect of image gap on spillover patronage.
While the conditional effect in the non-purchase condition is not significant (t = −0.987, p > 0.10, LLCI -0.434 ULCI 0.145), it becomes
significant in the purchase condition (t = −6.831, p < 0.001, LLCI
-0.918 ULCI -0.506).
Fig. 3a visually indicates that, within the range of the independent
variables, there is no intersection between two spillover patronage lines
under the different conditions: purchase in anchor store versus nonpurchase in anchor store (see Fig. 3a). Hence, it can be seen visually
that purchase in anchor store does not moderate the effect of multiple
self-congruity on spillover patronage. When shoppers experience high
self-image congruence, they are likely to additionally patronize nonanchor stores whether they buy in the anchor store or not.
The visual examination of the moderating effect of purchase likelihood in the anchor store (Table 3b) indicates, that within the range of
the independent variables, an intersection exists between two spillover
patronage lines arising from the different conditions: purchase in anchor
store and non-purchase in anchor store (see Fig. 3b). Purchase in anchor
store moderates the effect of image gap on spillover patronage via
amplifying the negative effect. In other words, when shoppers are likely
to engage in purchase in the anchor store, the smaller image gap definitely leads to a greater extent of spillover patronage. When shoppers
are not likely to engage in purchase in the anchor store, the negative
effect of image gap on spillover patronage dissipates.
Table 4
Regression analysis of image gap, multiple self-congruity and spillover
patronage.
IV
Image Gap tvalue
f2 (effect size)
Multiple SelfCongruity tvalue
f2 (effect size)
2
R (Adj R2)
F value
Degrees of
Freedom
DV
Model 1
Model 2
Model 3
Spillover
Patronage
Multiple SelfCongruity
Spillover
Patronage
−0.464 [-0.691,
−0.340] (−5.977)
***
0.274
−0.150 [-0.292,
−0.002] (−1.734)
0.216(0.210)
35.723***
1/130
0.023(0.015)
3.007+
1/130
−0.409 [-0.633,
−0.309] (−5.687)
***
0.195
0.368 [-0.633,
−0.309] (5.117)
***
0.153
0.348(0.338)
34.413***
2/129
+
0.023
Note: + indicates α < 0.10; ***α < 0.00; the intervals within brackets are
bootstrap results based on 5000 bootstrap samples.
−0.1221 BootULCI 0.004).
5.4.2. Moderating effect of purchase likelihood in the anchor store
We run multivariate regression analysis to test the moderating effect
of purchase incidence in the anchor store. Table 5 presents the results.
Model 4 tests the effect of anchor/non-anchor multiple self-congruity as
well as that of purchase in anchor store on spillover patronage. Building
on Model 4, Model 5 includes the interaction term: [multiple selfcongruity x purchase in anchor store]. In order to reduce potential
multiple collinearity among the interaction term and the independent
variable, the independent variable and the interaction factor are standardized. All models prove to be significant at 0.001 level. It can be seen
in Table 5 that the coefficient of the interaction term is not significant
(see Table 5). It shows that purchase in the anchor store does not
moderate the effect of multiple self-congruity on spillover patronage.
Based on this finding, we reject H4. We also perform Hayes’ process
procedure to test the moderating effect. This test confirms our prior
finding that the moderating effect of purchase in anchor store on the
multiple self-congruity/spillover patronage relationship is not significant (t = 0.5945, p > 0.10, LLCI -0.126 ULCI 0.234).
Model 6 examines the effect of store image gap and that of purchase
in anchor store on spillover patronage. Model 7 builds further on Model
6 by adding the following interaction term: [image gap x purchase in
anchor store]. We standardize the variables to minimize potential
multicollinearity. We find Models 6 and 7 to be significant at 0.001 level.
6. Research conclusions
6.1. Discussion
Previous research attempted to explain spillover shopping through
having recourse to spatial, temporal, and retail type based variation in
shop-level variables such as traffic and sales (for a brief summary refer to
Chung et al., 2021). In contrast, this research delves into variation due to
customers’ perceptions, thus attempting to better explain the cognitive
formation mechanisms of spillover patronage that is activated within a
shopping mall. Based on the compiled data obtained through
shopping-mall intercepts and laboratory experiments, it is found that
perceived image gap is negatively associated with spillover patronage,
whereas multiple self-congruity is positively associated with the same
Table 5
Testing the moderating effect of purchase incidence in anchor store.
Testing H4
Testing H5
Variable
Model 4
Model 5
variable
Model 6
Model 7
Multiple self-congruity f2 (effect size)
0.476*** [0.332,
0.748]
0.267
−0.177* [-0.585,
−0.050]
0.030
0.483*** [0.342,
0.753]
0.270
−0.174* [-0.568,
−0.040]<
0.029
0.047 [-0.118, 0.202]
0.002
Image gap
f2 (effect size)
−0.463*** [-0.693,
−0.341]
0.273
−0.032 [-0.335,
0.215]
0.001
0.214 (0.201)
0.216 (0.197)
0.002
11.742***
3/128
−0.430*** [-0.649,
−0.300]
0.222
−0.038 [-0.339,
0.205]
0.001
−0.240** [-0.368,
−0.075]
0.061
0.273 (0.256)
0.057
16.033
3/128
Purchase in anchor store f2 (effect size)
Multiple self-congruity x Purchase in anchor
store f2 (effect size)
R2 (Adj R2)
⊿R2
F value
Degrees of Freedom
17.524***
2/129
Purchase in anchor store f2
(effect size)
Image gap x Purchase in
anchor store
f2 (effect size)
R2 (Adj R2)
⊿R2
F value
Degrees of Freedom
0.217 (0.204)
17.832
2/129
Dependent variable: spillover patronage. Significance levels: + indicates α < 0.10; *α < 0.05; **α < 0.01; ***α < 0.001; the intervals within brackets are bootstrap
results based on 5000 bootstrap samples.
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S. Wei et al.
Journal of Retailing and Consumer Services 63 (2021) 102682
Fig. 3. a. Interaction effect due to purchase incidence in anchor store. Fig. 3b. Interaction effect due to purchase incidence in anchor store.
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S. Wei et al.
Journal of Retailing and Consumer Services 63 (2021) 102682
variable. These findings are important, because in contrast to the previous research indicating a negative spillover effect between
same-market retailers, i.e. stores selling identical categories of products
(Arcidiacono et al., 2019; Artz and Stone, 2006; Stone, 1997; Daunfeldt
et al., 2019), the current research shows that this effect may not always
be the case at the individual level. Non-significant perceived image gap
as well as multiple self-congruity increases the likelihood of spillover
shopping. The more similar the images of non-anchor and anchor stores,
irrespective of them being the same-market retailers, it will be easier for
non-anchor stores to tap into original customer traffic generated by the
anchor store. Moreover, the current research finds that irrespective of
the stores being upscale or downscale, if the image of the non-anchor
store is similar to that of the anchor store, the non-anchor store will
continue benefiting from customers spilling over from the anchor store.
While the past research highlighted retailer differences on the basis of
product complementarity, substitutability, spatial distance (Chung
et al., 2021; Haltiwanger et al., 2010), no research linked spillover
shopping, specifically, spillover patronage to consumers’ image
congruence perceptions. It is generally true that complimentary services
such as bars, restaurants, eateries, and other local service providers
thrive due to spillover shopping, while substitute retailers suffer (Artz
and Stone, 2006; Haltiwanger et al., 2010). However, the current
research shows that substitute retailers may also benefit from spillover if
they can attain better multiple image congruence with big-box retailer
customers. Managers in shopping malls should consider ways to enhance
not only the anchor store’s image, but also respective non-anchor store
images. Moreover, this research finds the act of purchase as a boundary
condition of the image gap – spillover patronage relationship. The significance of purchase while browsing has been recognized in past
research (Reynolds et al., 2012), although it has not been linked to
spillover shopping. Our findings indicate that non-purchase dissipates
image gaps negative effect on spillover shopping, while purchase amplifies this effect.
patronage effect of an anchor store on non-anchor stores in a shopping
mall. It should be noted that consumers’ self-image can be multidimensional. Different dimensions of self-image have different effects on
consumer attitudes and behaviors. So, what is the effect of the consumer’s ideal self-image congruence and social self-image congruence
on spillover patronage flowing from anchor stores to non-anchor stores?
Can these factors also explain spillover patronage? Further research
could test the role of these concepts. Moreover, this study inherits a
viewpoint of retail demand externality theory, that is, anchor stores in a
shopping mall representing the main force of attracting consumers to the
shopping mall, because of its large area, abundant assortments, and
retail power. But the opposite could be true as well: non-anchor stores
may attract customers to anchor stores. Specifically, some very
distinctive, unique, and niche stores could pull customers to shopping
centers. Hence, in-depth research on the direction of spillover patronage
needs to be conducted in future. Furthermore, this study uses the data
obtained by a field survey and experiments to test the hypotheses. In
future, RFID technology can be used to insert chips into shopping carts
or membership cards, or a mobile app can be used to obtain the real data
of shoppers’ movement paths to detect spillover patronage. In addition,
social network methods can be used to analyze these shoppers’ interaction behavior.
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6.2. Research contributions and managerial implications
The current research theoretically recasts spillover shopping from
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This study has the following managerial implications. The managers
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retailer customer groups, effectively locate these micro-segments, and
carry out targeted marketing strategies to attract these potential target
groups into their store.
6.3. Limitations and future research
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