The Impact of Green Supply Chain Management Practices On Firm Performance: The Role of Collaborative Capability
The Impact of Green Supply Chain Management Practices On Firm Performance: The Role of Collaborative Capability
The Impact of Green Supply Chain Management Practices On Firm Performance: The Role of Collaborative Capability
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Donghyun Choi
School of Air Transport, Transportation, Logistics, and Air & Space Law
Korea Aerospace University, South Korea
Email: dchoi@kau.ac.kr
Telephone: 82-2-300-0374
Taewon Hwang*
Harley Langdale Jr. College of Business Administration
Valdosta State University, USA
Email: thwang@valdosta.edu
Telephone: 1-229-245-2238
* Corresponding author
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Abstract
This study attempts to contribute to the growing research on green supply chain management
(GSCM) strategies by relying on the Natural Resource Based View (NRBV) and relational view.
Specifically, this study investigates the role of collaborative capability in moderating the effects of
GSCM practices on firm performance. Using hierarchical regression, this study analyzes data
from a survey of 230 South Korean manufacturers. The results show that the implementation of
GSCM practices can improve both environmental and financial performance of the firm. Also, the
findings indicate that firms can expect improved financial performance when they seek a
Key words: Green supply chain management; Collaborative capability; Natural resource based
1 Introduction
Green supply chain management (GSCM) can be generally defined as the practice of improving
environmental performance along the supply chain, including product design, operations
studies have investigated whether the implementation of environmetal supply chain strategies
leads to enhanced firm performance (Sarkis 2012). However, the results of these studies were
mostly mixed, ranging from little or no improvement (Zhu et al. 2005). To explain these contrasting
results, several researchers have explored factors that influence this relationship (Lopez-Gamero
et al. 2009; Sarkis et al. 2010; Zhu and Sarkis 2007). Following this stream of thought, the present
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study intends to examine another possible moderating effect – collaborative capability, which can
be defined as a firm's ability to leverage other actors’ resources and knowledge (Kotabe et al. 2003;
Koufteros et al. 2007; Patnayakuni et al. 2006). Collaboration relationships have helped firms to
reduce transaction costs and create a sustainable competitive position in highly uncertain business
Recently, a number of major firms have begun to capitalize on the potential of supply chain
collaboration in the implementation of green strategies. For instance, Coca-Cola has launched a
wide range of collaborative green practices such as the Community Water Partnership (Reuters
2011). Working jointly with bottling partners and environmental charities, it has developed
PlantBottle, the first recyclable plastic beverage bottle made partially from plants. Coca-Cola has
also formed a strategic partnership with H. J. Heinz Company, which uses PlantBottle for its
ketchup.
Despite the popularity of collaborative green strategies, there has been little systematic
research on the role of collaborative capability in the adoption of these strategies. The purpose of
this study is to investigate the relationship between GSCM practices and firm performance by
answering the following research questions: (1) Is GSCM implementation positively related to
firm performance? (2) Does the firm’s level of collaboration moderate the relationship between
GSCM practices and firm performance? To answer these research questions, this study conducts a
field survey of South Korean manufacturers. South Korea has been credited with adopting low
carbon and green growth as a national goal (Lee et al. 2012). Most importantly, the Korean
government has placed a greater emphasis on collaboration across the supply chain by encouraging
large manufacturers to share their environmental management know-how with supply chain
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partners (Lee 2008; Lee and Klassen 2008). Thus, South Korea could provide a unique setting to
examine the role of collaboration between GSCM practices and firm performance.
This study is organized as follows. The second section introduces GSCM practices and
collaborative capability by focusing on the perspective of the natural resource based view (NRBV)
and relational view. The third section presents the conceptual framework of this study and
development of hypotheses. The fourth section provides the research methodology. The fifth
section presents the results and the sixth section discusses the findings of the study. The final
section concludes the study and also discusses the limitations of the study.
2 Theoretical backgrounds
The resource-based view (RBV) has been widely used to explain the impact of GSCM practices
on firm performance (Sharma and Vredenburg 1998). The resource-based view (RBV) suggests
that firms need to increase their strategic resources and leverage them to create sustainable
competitive advantage (Barney 2001). These resources can include both tangible and intangible
assets such as human, information technology, capital, equipment, and knowledge. RBV defines a
strategic asset as a resource that is rare, valuable, imperfectly imitable and non-substitutable. Firms
that establish distinctive competencies through unique combinations of strategic assets can achieve
advantage over competitors and earn above-normal rates of return (Acedo et al. 2006).
Recently, Hart (1995) has attempted to expand the scope of RBV by including the
constraints and opportunities given by the natural environment. Hart’s typology, referred to as the
natural resource-based view (NRBV), suggests that firms can gain competitive advantage from the
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implementation of green strategies such as pollution prevention, product stewardship, and
sustainable development. Pollution prevention seeks to prevent waste and emissions at the source
instead of at the end-of-the-pipe. Product stewardship ensures that all those involved in the life
cycle of a product share responsibility for reducing its environmental impacts. Sustainable
development, which goes beyond simply reducing environmental damage, encompasses economic
and social concerns. A significant body of GSCM research has examined the competitiveness
effects of these strategies, pollution prevention in particular (Hart and Dowell 2011). For example,
Klassen and Whybark (1999) found that pollution prevention technologies, instead of pollution
control technologies, were associated with improved firm performance. The NRBV has been
further elaborated through the work of many researchers, showing the importance of
environmental practices as a strategic asset that contributes directly to better firm performance
The RBV is considered to be essentially static in its nature. Adopting an inward-looking view, the
RBV assumes that firms should own or fully control strategic resources in order to create
sustainable competitive advantage. This assumption of ownership or control implies that firms
should establish barriers to protect their core resources from being imitated by competitors.
However, a growing number of studies have begun to question this proprietary assumption,
arguing that resources of supply chain partners have a considerable impact on firm performance
(Lee et al. 2001). They criticized the RBV for remaining trapped in an internal perspective (Priem
and Butler 2001). To address this theoretical challenge, some researchers have attempted to
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reformulate the RBV by arguing that a firm’s competitiveness not only arises from internal
resources but also depends on inter-firm collaborations (Dyer 1996; Dyer and Singh 1998). This
line of thought, called the relational view, has been applied to the environmental sustainability
context (Christmann 2000). Vachon and Klassen (2008) found that collaborative environmental
activities with suppliers are related to process-based performance while collaborative green
practices with customers are linked with product-based performance. Zhu et al. (2008) showed
harmful materials or processes. Sharfman et al. (2009) found that inter-firm trust is one of the main
factors that affect the extent to which firms engage in cooperative GSCM. Albino et al. (2012)
actors on environmental performance. They found that collaborations with a wide range of actors,
collaborations in the context of GSCM. However, they did not differentiate between GSCM
practices and a firm’s collaborative capability. There is growing evidence that a firm's collaborative
capability should be conceptualized as a distinct factor (Hofmann et al. 2012). For instance, many
original equipment manufacturers (OEMs) have implemented asset recovery programs for their
end-of-life (EOL) products (Toffel 2004). According to the NRBV, such GSCM practices can be
considered a strategic resource that directly improves firm performance. However, when it comes
to the question of whether these OEMs work with their supply chain partners to obtain the
maximum benefits from asset recovery programs, it is another issue. In fact, after initiating asset
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recovery programs, quite a few OEMs are still unwilling to collaborate with other actors such as
independent product recovery companies (Toffel 2004). Although these OEMs can reduce
potential losses of both market share and brand image, this practice is self-defeating over the long
run because it could be difficult for a single firm to possess all the resources required to implement
GSCM programs successfully (Wiens 2014). After all, GSCM programs involve a wide range of
activities, requiring expertise from almost all members of the entire supply chain (Nakano and
Hirao 2011). Based on this rationale, this study draws a distinction between a firm’s collaborative
capability and GSCM programs, suggesting that firms with high levels of collaborative capability
are likely to achieve better performance from the implementation of GSCM programs. In addition,
this study focuses on a firm's collaborations and partnerships with actors such as suppliers,
customers, governments, and non-governmental organizations because working with these actors
does not have a different impact on firm performance (Albino et al. 2012).
3 Hypotheses development
Figure 1 shows our conceptual model. Building on the NRBV, we posit that GSCM practices are
positively associated with firm performance. We also posit that a firm’s collaborative capability
moderates the relationship between GSCM practices and firm performance. Previously, GSCM
within the boundaries of a firm (Bansal and Roth 2000; Handfield et al. 2005). Although internally
focused GSCM practices contribute to improving firm performance, achieving full value from
various actors (Albino et al. 2014). Following this line of thought, we focus on two GSCM
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practices that are most likely to be influenced by a firm’s collaborative capability: eco-design and
investment recovery (Zhu and Sarkis 2004, 2007; Zhu et al. 2008). The purpose of eco-design is
to reduce the negative environmental impacts of a product over its full life cycle (Aoe 2007). The
objective of investment recovery is to recover the highest value from obsolete, EOL, and surplus
We exclude internally oriented GSCM practices such as commitment of GSCM from senior
managers, total quality environmental management, and ISO 14001 certification because they are
likely to receive limited benefits from collaborations. In addition, as mentioned earlier, we intend
to distinguish a firm’s collaborative capability from GSCM practices. Thus, some external GSCM
practices such as cooperation with external partners for environmental objectives are excluded for
this study.
performance, defined as the ecological results of a firm-wide commitment to preserve and improve
the natural environment (Nawrocka and Parker 2009). With the growing number of firms that are
committed to creating social and environmental value, the measurement and evaluation of
environmental performance are becoming more important than ever before (Kainuma and Tawara
2006; Testa and Irald 2010). The second is financial performance, which is one of the most
common drivers for the implementation of GSCM practices. A number of studies showed that
firms that perform better environmentally are also the most successful financially (Berry and
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3.1 GSCM practices and firm performance
The concept of eco-design has been described under various terms such as green design, design
for environment, sustainable design, etc. (Luttropp and Lagerstedt 2006). As shown in Figure 2,
throughout its life cycle, from raw material acquisition to final disposal (Aoe 2007). Some eco-
while maintaining all functional and safety requirements for consumers. It also emphasizes the
importance of early product design decisions because approximately 80% of all product-related
environmental impacts can be identified during the design phrases of product development
(Karlsson and Luttropp 2006). Researchers have proposed a number of eco-design tools to enhance
the design of the product from an environmental perspective (Bovea and Pérez-Belis 2012). One
of the most popular tools is life cycle assessment (LCA), which evaluates all relevant resources
and emissions consumed at each stage of the product’s life cycle (Arena et al. 2013).
Eco-design has been widely recognized as a useful tool for improving environmental
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performance, as evidenced by a number of empirical studies conducted in various fields such as
electronics (Aoe 2007) and disposable diapers (Mirabella et al. 2013). However, despite explicit
advantages from lower production costs, eco-design was often found to be related to poor financial
performance (King and Lenox 2001). Recently, with growing consumer awareness about the
environment, this conventional view has been challenged (Griskevicius et al. 2010). A number of
environmentally conscious consumers are willing to pay more for eco-design products (Akehurst
et al. 2012). Moreover, continuous eco-design innovations not only improve a firm’s image as a
green champion but also serve as the principal source of competition, leading to higher sales
growth (Chen 2008). For example, Toyota Motor Corporation has introduced an LCA system
its vehicles (Nakano et al. 2007). The Toyota Prius has earned a reputation as the first hybrid car,
achieving significant sales growth since its introduction in 1997. Therefore, it is reasonable to
recovery focuses on obsolete, EOL, and surplus asset recovery (Ayres et al. 1997). In addition,
investment recovery differs from eco-design in that the former seeks to achieve a higher form of
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recycling/reuse by pursuing value-added recovery involving remanufacturing (Guide 2000). As
shown in Figure 2, investment recovery attempts to integrate obsolete, EOL, and surplus assets
back into reverse logistics processes so that these assets can be properly recovered or disposed of
(Chan et al. 2010). In this way, investment recovery can help firms to maximize cost savings and
value recovery. Investment recovery has been successfully applied to a wide range of industries
such as computers (White et al. 2003) and automobiles (Gerrard and Kandlikar 2007). Some
Investment recovery has received increased attention in recent years as a growing number
of environmental regulations impose greater responsibilities on OEMs for managing their EOL
products (e.g., the European Union’s Extended Producer Responsibility) (Spicer and Johnson
2004). Instead of simply banning EOL products from landfills or incinerators, these “product take-
back” regulations offer financial incentives to encourage manufacturers to develop effective asset
recovery strategies (Toffel 2004). Another significant driver towards investment recovery is the
increasing volume of product returns (Petersen and Kumar 2009). According to a recent survey
from the Reverse Logistics Association, the annual volume of products returned by consumers in
the U.S. is estimated at between $150 and $200 billion at cost. This trend is expected to continue
with more liberal return policies (Jayaraman and Luo 2007). Previously, product returns were
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considered troublesome; product returns were usually shipped in bulk to minimize costs, often
resulting in significant delays in the recovery process (Guide et al. 2005). However, firms are now
recognizing the potential value of product returns; product returns have recoverable value and can
bring additional revenue into firm, if properly managed (Blackburn et al. 2004; Ilgin and Gupta
2010). For instances, Xerox has established an asset recovery program called the Xerox Green
World Alliance, which aims to improve the environmental performance of its EOL products
through a closed-loop supply chain (Xerox 2014). The program has helped Xerox to save millions
of dollars in raw material costs over the past 20 years. Therefore, it is reasonable to argue that
includes a broad range of environmental activities among supply chain members, it has become
more difficult for a single firm to have all the information on a product and its production processes
(Nakano and Hirao 2011). To truly maximize the value of eco-design, a firm should leverage
potential synergistic effects of supply chain collaboration (Thabrew et al. 2009). This notion is
clearly supported by the International Electrotechnical Commission (IEC), which suggests that
eco-design requires collaborations and contributions of all supply chain participants (IEC 2010).
A number of studies also indicate that firms can expect more substantial environmental and
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financial improvements when they take into account design factors outside of their immediate
2005). Previously, it was difficult to collect all the data required to analyze eco-design activities
from globally dispersed business partners (Nakano and Hirao 2011). With the recent rapid
advances in information and communication technologies, it is now possible for firms to easily
share their valuable experiences on eco-design. For instance, LCA software packages such as
SimaPro can help firms to quantify their eco-design activities and goals, enabling them to
accurately measure the potential environmental and financial consequences of their new product
Indeed, collaboration is not optional anymore, but a basic requirement for eco-design. For
initiative (Fayolle et al. 2008). Specifically, L’Oréal works closely with its suppliers to evaluate
the environmental impact of raw materials throughout their life-cycle. This is an important part of
L’Oréal’s long-term environmental plan, which aims to source 100 percent renewable raw
materials from sustainable sources by the year 2020. Collaborations are also crucial to Levi Strauss
& Co.’s efforts to use less water in the life cycle of its new “Water<Less” jeans collection (Joule
2011). Because it was found that the majority of water use is for the cotton production process,
Levi’s joined the Better Cotton Initiative, a program that helps cotton suppliers to make cotton
more sustainable. Since the launch of the collection in 2011, Levi's has saved over 770 million
liters of water, selling over 13 million "Water<Less" pairs of jeans. These examples clearly show
that collaborative improvement activities are essential to reap the full benefits of eco-design. Based
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H3a: Collaborative capability moderates the relationship between eco-design and environmental
performance.
H3b: Collaborative capability moderates the relationship between eco-design and financial
performance.
Previously, investment recovery tended to focus on how to handle surplus items within the
boundaries of a firm (e.g., idle equipment within a firm) (Sinding 2000). Managers viewed reverse
logistics as a series of fragmented non-value-added activities; this lack of supply chain visibility
led them to address each reverse logistics activity in isolation from a silo perspective (Guide et al.
2005). Consequently, the focus of most investment recovery strategies was to achieve maximum
increasingly shifts back to the manufacturers. As a result, the traditional supply chain has been
expanded to include both forward and reverse logistics (Olorunniwo and Li 2010). Such a supply
chain framework, the combination of forward and reverse logistics, is called a closed-loop supply
chain (Savaskan et al. 2004). In this integrated environment, firms can benefit from collaborative
investment recovery strategies; for example, a manufacturer facing time-sensitive product returns
such as laptop computers can establish partnerships with its retailers to minimize the loss in
product value due to time delays; retailers evaluate product condition as early as possible at the
point of customer returns to identify product returns with high recoverable value (Blackburn et al.
2004).
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Many firms have attempted to maximize the value of investment recovery through
collaborative efforts of closed-loop supply chain members (Toffel 2004). For instance, Nissan
Motor Corporation in Japan works with a number of supply chain partners to improve the recovery
rate for its EOL vehicles (Nissan 2014). Nissan relies on its dealerships, which collect discarded
bumpers. Nissan pulverizes these discarded bumpers so that bumper materials can be used to make
new bumpers. In addition, Nissan has teamed with the Sumitomo Corporation to evaluate the reuse
of the Nissan LEAF battery for commercial purposes. Nissan recovered over 100 thousand tons of
automobile shredder residue collected from vehicles in Japan, earning a profit of over 800 million
Japanese yen (8 million US dollars). These examples clearly indicate that collaborative
improvement efforts are important to maximize the value of investment recovery. Based on the
H4a: Collaborative capability moderates the relationship between investment recovery and
environmental performance.
H4b: Collaborative capability moderates the relationship between investment recovery and
financial performance.
Following the literature, this study included firm size as a control variable (Zhu and Sarkis 2004,
2007). Large firms are more likely to adopt GSCM practices because they have a greater amount
of resources and typically face higher environmental pressure than small or medium sized firms.
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4. Research methodology
4.1 Sample
The data for this study were collected from South Korean manufacturers. Our empirical setting is
particularly appropriate for several reasons: First, South Korea has taken many green initiatives as
a national development strategy (Lee et al. 2012). For example, it has become the first Asian nation
to pass legislation introducing the nation-wide greenhouse gas emission trading scheme, which is
set to come into force in 2015 (Chae 2010). Recent studies have focused on South Korea to
understand a variety of GSCM related issues (Kim and Rhee 2012; Kim et al. 2011). Second, the
increasing global competition over the past decade has enabled South Korean firms to improve the
ability to react to global standards for green business (Kwon et al. 2002; Lee and Kim 2011). The
majority of South Korean firms rely on international trade for a large portion of their annual
revenue. According to OECD statistics in 2010, 45% of Korean GDP is from international trade.
To create opportunities for new markets in the global market, South Korea’s large firms such as
Samsung, Hyundai, and LG have sought to develop green strategies that effectively address global
environmental issues (Green Growth Korea 2010). Third, the Korean government’s Green
philosophy to small and medium-sized suppliers (Lee 2008; Lee and Klassen 2008). This has led
manufacturers to shift the focus of their green strategies from single plant improvements to the
entire supply chain. For instance, Samsung SDI has started the Global Green Partnership project,
which aims to help its suppliers to enhance the ability to respond to environmental regulations
(Samsung SDI 2012). Samsung SDI has recently created a green management collaboration system
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for its suppliers in China and plans to expand the systems to its suppliers in other countries such
as Vietnam and Malaysia. For all of the reasons above, South Korea provides a quite suitable
The survey questionnaire was developed to collect research data. The initial pool of items was
selected from existing scales, with wording changed to reflect the context of manufacturing
processes. The design process for the questionnaire consisted of two stages. In the first stage, an
extensive literature review on environmental practices was conducted to ensure the questionnaire’s
content validity. Five academic colleagues were asked to review the initial questionnaire for
ambiguity and appropriateness of the items. We modified the instrument based on their feedback.
In the second stage, the survey questionnaire was pilot-tested in a sample of ten supply chain
practitioners. They were also asked to evaluate whether the items reflect adequately the domain
of interest. Their feedback resulted in minor changes. The double translation protocol was used
for the questionnaire development because data were collected from South Korean firms (Brislin
1976). The authors of this study translated the final English version of the questionnaire into
Korean and then translated the Korean version back into English. Two bilingual researchers who
teach operation management in the US also examined the English versions and found no
significant differences. As shown in Table 1, the questionnaire included seven items for GSCM
practices (Zhu and Sarkis 2004, 2007; Zhu et al. 2008), eight items for firm performance (Zhu and
Sarkis 2004, 2007), and eight items for collaborative capability (Kotabe et al. 2003; Koufteros et
al. 2007; Patnayakuni et al. 2006). They were measured using a seven-point Likert scale with
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anchors ranging from strongly disagree (1) to strongly agree (7) in order to ensure high statistical
<Table 1>
The Web-based questionnaire was sent out to supply chain managers of 910 South Korean
manufacturing firms with ISO 14001, ISO 9001, or ROHS certification. The Web-based survey is
a more convenient method with substantially fewer missing responses than mail-based surveys
(Boyer et al. 2002). About two weeks later, we sent follow-up emails to remind managers who had
not responded to take part in the survey. The non-response bias was assessed to compare early
respondents who answered within the first two weeks, later respondents who answered after the
from the sample of 910) (Armstrong and Overton 1977). A simple paired t test was conducted for
three pairs (early-late; early-non respondent; late-non respondent). T test comparison showed no
significant difference (p<0.05) between the firm size, industry sector, eco-design, investment
The survey yielded 230 useable responses (a response rate of 25.3%), achieving an
acceptable response rate for a supply chain management survey (Rosenzweig et al. 2003). The data
shows the firms’ annual sales ranged from 2.5 million to 325 million US dollars with a median of
184.1 million US dollars. Also, most respondents were from operations, purchasing, and supply
chain management team. Relatively few respondents were (10 out of 230) from other departments
such as marketing and R&D. Table 2 shows the sample characteristics in terms of industry type
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and the number of employees. Descriptive data, including means, standard deviations, and samples
<Table 2>
The influence of common methods variance might be problematic when data on the independent
and dependent variables are collected from the same respondents in the same survey. A principal
component factor analysis (with a direct oblimin rotation, delta = 0) was conducted through SPSS
18.0 to further confirm grouping GSCM practices, collaborative capability and firm performance.
The Kaiser criterion (eigenvalues > 1) was employed in conjunction with parallel analysis and
Cattell’s (1966) scree test. As expected, the results showed the presence of two, one, and two
components for GSCM practices, collaborative capability and firm performance, respectively. It
means that common methods bias is not a serious problem in the data. Tables 4 and 5 present the
pattern matrix for GSCM practices and firm performance, respectively. The two GSCM practice
components explained 84.16% of the total variance and two firm performance components
accounted for 82.07% of the total variance. As shown in Table 6, collaborative capability, extracted
as one component with no cross-loadings, explained 69.55% of total variance. For all the scales,
Cronbach's alpha exceeded the recommended level of 0.70 (Gefen et al. 2000).
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< Table 5>
Table 7 shows the means, standard deviations, and correlations of all the factors. Because
investment recovery is correlated at 0.61 with eco-design and at 0.60 with environment
performance, Fornell and Larcker’s (1981) test was conducted for discriminant validity. This test
requires that the average variance extracted (AVE) for each factor should be greater than the
squared correlation between the factor and other factors in the model. Table 7 shows the square
root of AVE on the diagonal axis. All diagonal elements are larger than their corresponding
<Table 7>
5 Results
Hierarchical regression was used to test hypotheses. The analysis was conducted in four steps.
First, the control variable, firm size was entered into the regression. Then one GSCM practice
variable was entered into the regression. Third, the moderator variable, collaborative capability,
and the interaction term of one GSCM practice variable and collaborative capability was entered.
The data were mean-centered in order to mitigate the effects of multicollinearity in regression
Hypotheses 1a and 1b posit a direct, positive relationship between eco-design and two
performance factors. Table 8 indicates that both relationships were statistically significant,
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supporting both Hypotheses 1a and 1b. Hypotheses 2a and 2b posit a direct, positive relationship
between investment recovery and two performance factors. Table 9 shows that investment
recovery had a direct, positive association with two performance factors, supporting Hypotheses
2a and 2b.
between eco-design and two performance factors. Table 7 shows that the interaction terms between
eco-design and collaborative capability had significant positive coefficients for financial
capability moderates the relationship between investment recovery and two performance factors.
The same pattern was observed as shown in Table 9. The interaction terms between investment
recovery and collaborative capability had significant positive coefficients for financial
Figure 3 and Table 10 summarize the results of the hypotheses testing. Overall, the
implementation of GSCM practices was positively related to both firm performance factors.
Collaborative capability positively moderated the relationship between GSCM practices and
financial performance.
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6 Discussion
We found that GSCM practices can be beneficial for a firm’s performance, thereby providing
support to the NRBV. Thus, it can be argued that the implementation of GSCM practices helps a
firm to develop unique environmental management capabilities that lead to higher performance.
This finding is consistent with the results of recent studies drawing on the NRBV (Lee and Klassen
2006; Shi et al. 2012). Previously, most firms have relied on the “win-win” argument to justify
investments in GSCM programs. This assumption has often been criticized on the ground that such
investments will raise the cost burden and in turn influence financial performance negatively. For
example, Green et al. (2102) have shown that both eco-design and investment recovery are
However, we found that GSCM strategies can be integrated into business with improved
environmental and financial performance. The discrepancy between these two studies could be
due to differences in the samples. Green et al. (2012) used a diverse group of US manufacturers
while this study employed a focused group of South Korean manufacturers. In fact, the results of
this study are consistent with those of Zhu and Sarkis (2004), who used a homogeneous group of
Chinese manufacturers.
supply chain environmental management (SCEM) program, which includes special funds and tax-
cut incentives for firms that actively implement environmental initiatives (Lee 2008). With such
assistance programs, it is possible that South Korean manufacturers reduce costs related to the
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6.2 The moderating effects of collaborative capability on firm performance
We found that firms with high levels of collaborative capability tend to gain better financial
performance from the implementation of GSCM programs. Figures 4a and 4b show that the
stronger collaborative capability, the greater the positive relationship between GSCM practices
and financial performance. In other words, firms that implement GSCM programs with close
collaboration with their supply chain partners are more likely to experience high financial
performance than those who do not have such strong relationships. Recent studies that focused on
South Korean firms also reported similar results (Kim et al. 2011; Kim and Rhee 2012; Lee and
Kim 2011).
<Figure 4>
However, the results of this study indicate that there is no significant moderating effect of
collaboration for environmental performance. The results have an important implication for our
understanding of how firms use their resources for supply chain collaboration. In South Korea, it
is possible that some manufacturers implement environmental programs reactively because they
are required to meet the government’s environmental requirements. Those manufacturers that are
less environmentally motivated are likely to put more resources into collaborative activities for
financial improvement rather than environmental improvement. Presumably, after simply meeting
the minimum requirements set by the government, less environmentally motivated manufacturers
may focus on maintaining the status quo without further attempting to improve environmental
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performance.
Another explanation for this insignificant moderating effect may be simply that our sample
firms did not collaborate on environmental activities. In this study, the scale of collaborative
capability did not differentiate the context of collaboration. Therefore, it could be possible that
these firms collaborated more on traditional issues such as quality improvements and cost savings
Overall, this study contributes to the growing research on GSCM strategies by highlighting the
previous studies that examined the effects of GSCM practices underscored the necessity to identify
possible moderators. Researchers should continue to explore potential moderators to better explain
Another contribution of this study is to add to a growing body of GSCM research conducted
in a variety of countries. GSCM studies have traditionally tended to focus on developed countries
such as Germany (Thun and Müller 2010), the UK (Holt and Ghobadian 2009), the US (Green et
al. 2010), etc. As more and more firms are moving a significant portion of their manufacturing
operations to Asia, recent GSCM research efforts have shifted toward countries such as China (Zhu
et al. 2008), India (Mitra and Datta 2014), Malaysia (Eltayeb et al. 2011), Taiwan (Shang et al.
2010), Thailand (Setthasakko 2009), etc. These studies showed that those countries have
developed unique green initiatives, suggesting that country-specific characteristics in this region
deserve more research attention in the study of GSCM (Rao and Holt 2005). The results of this
24
study also indicate that future GSCM studies should continue to place a greater emphasis on
country-specific aspects.
7 Conclusion
As an important new strategy, GSCM allows firms to achieve financial and market share goals by
lowering their environmental costs while ensuring environment friendly operations. Recently, the
importance of GSCM has received considerable attention. Implementing GSCM can benefit the
firm as it can be a revenue driver. However, most GSCM related studies have yet to investigate
which capability of the firm is needed for successful GSCM. This study proposed collaborative
capability as an important moderator for the relationship between GSCM implementation and firm
performance. The results of this study show that the positive relationship between GSCM practices
and financial performance is stronger when a firm actively collaborates with various partners. In
manufacturers can seek benefits from investing in GSCM through collaboration with suppliers that
implement operations that satisfy green standards. Firms that implement GSCM practices by
building close relationships with their partners can obtain higher financial outcome. The literature
on collaboration between inter-firm involvements also indicates that collaboration plays a critical
role when the complexity increases in the business environment. Through communication,
coordination, and conflict resolution processes with various partners, firms can obtain shared
interpretation of the information, which enables swift and decisive actions to solve environmental
problems.
25
There are some limitations to this study. Since our data were collected from a single source,
the risk of common methods bias might be problematic. Also, financial performance is measured
by perception of respondents, not by real financial data. This perception has potential to exaggerate
the performance. The self-reported survey data used in this study might not fully reflect the actual
situation. However, the self-reported survey data are commonly used to measure performance and
we believe that our approach is sufficient to provide a snapshot of current practices of green
practices among South Korean manufacturers. Last but not least, some supply chain partners
might achieve some type of environmental certification, biasing our findings. These limitations
should be addressed in the future research, including a longitudinal analysis of GSCM practices
over time.
Acknowledgement
This research was supported by the MSIP (Ministry of Science, ICT and Future Planning) Korea
under the C-ITRC (Convergence Information Technology Research Center) support program
26
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Figure 1 Conceptual framework
Figure 2 Eco design and investment recovery in a closed loop supply chain
38
Figure 3 Results of the hypotheses testing
39
Table 1 List of questionnaire items
40
Table 2 Sample charateristics
41
Table 3 Descriptive statistics
42
Table 4 Factor matrix-GSCM practices
Component
Survey items
1 2
We design products considering life cycle assessment (LCA). .955 -.065
We provide design specifications to our partners that include environmental requirements for purchased items. .888 .012
We design our products to avoid or reduce the use of hazardous products and their manufacturing process. .858 .063
We design our products for reuse, recycle, and recovery of material and component parts. .734 .160
We have implemented recycle policies. .244 .880
We have implemented remanufacturing policies. .247 .858
We have implemented collecting policies. .376 .791
Extraction Method: Principal Component Analysis
Rotation Method: Oblimin with Kaiser Normalization
Rotation converged in 5 iterations
Component
Survey items
1 2
Our waste water has been reduced after the introduction of green policies. .924 -.007
Our solid waste has been reduced after the introduction of green policies. .921 -.031
Our energy consumption has been reduced after the introduction of green policies. .909 .006
CO2 emission has been reduced after the introduction of green policies. .844 .042
Our earnings per share rate has increased after the introduction of green management. -.061 .941
Our sale growth rate has increased after the introduction of green management. .013 .916
Our market share has increased after the introduction of green management. -.032 .914
Our profitability has increased after the introduction of green management. .099 .775
Extraction Method: Principal Component Analysis
Rotation Method: Oblimin with Kaiser Normalization
Rotation converged in 6 iterations
43
Table 6 Factor matrix-collaborative capability
Component
Survey items
1
Our partners’ tools and machinery are customized to our needs. .856
We rely on our partners’ engineering capability. .855
Our partners spend a significant amount of time and effort to our relationship. .852
Our engineers and sales staff work closely with our partners’ staff. .845
Our partners’ knowledge of our procedures, culture, and technological know-how are difficult to replace. .823
The frequent contacts between our partners and our engineers are important. .816
We share our high level engineering capability with our partners. .815
The direction of our communication is bilateral rather than unilateral. .790
Extraction Method: Principal Component Analysis
1 component extracted
Table 7 Mean, standard deviations, correlations, and the square root of AVE
Mean SD ED IR CC EP FP
Eco-design (ED) 4.63 1.19 .838
Investment
4.71 1.06 .610** .903
recovery (IR)
Collaborative
2.99 1.01 -.467** -.434** .883
capability (CC)
Environmental
4.80 1.05 .545** .600** -.436** .889
performance (EP)
Financial
4.65 1.10 .429** .426** -.504** .401** .922
performance (FP)
Firm size 4.18 1.85 607** .550** -.448** .631** .312**
** p < 0.01
44
Table 8 Hierarchical regression with eco-design and collaborative capability interaction
Dependent variable
Variable
Environmental performance Financial performance
entered
Step 1 Step 2 Step 3 Step 1 Step 2 Step 3
Firm size 0.349** 0.265** 0.241** 0.186** 0.035 -0.043
(control) (0.030) (0.036) (0.037) (0.038) (0.045) (0.042)
Industry -.023 -0.016 -0.015 -0.053 -0.042 -0.037
(control) (0.022) (0.021) (0.021) (0.028) (0.027) (0.024)
0.221** 0.183** 0.342** 0.227**
Eco-design
(0.055) (0.057) (0.069) (0.064)
Collaborative -0.116 -0.271
capability (0.066) (0.075)
Collaborative
0.039 0.219**
capability ×
(0.041) (0.046)
Eco-design
F 76.193** 59.574** 37.873** 14.190** 18.514** 26.931**
R2 0.402 0.442 0.446 0.103 0.187 0.362
2
R Change 0.402** 0.039** 0.004 0.103** 0.083** 0.175**
** p < 0.01
45
Table 9 Hierarchical regression with investment recovery and collaborative capability interaction
Dependent variable
Variable
Environmental performance Financial performance
entered
Step 1 Step 2 Step 3 Step 1 Step 2 Step 3
Firm size 0.349** 0.241** 0.223** 0.166** 0.054 -0.010
(control) (0.030) (0.033) (0.034) (0.039) (0.043) (0.040)
Industry -0.023 -0.011 -0.009 -0.053 -.040 -0.029
(control) (0.022) (0.020) (0.020) (0.028) (0.027) (0.024)
Investment 0.356** 0.316** 0.370** 0.204**
recovery (0.057) (0.059) (0.075) (0.070)
Collaborative -0.100 -0.339
capability (0.060) (0.071)
Collaborative
capability × 0.035 0.186**
Investment (0.039) (0.046)
recovery
F 76.193** 72.684** 45.235** 14.190** 18.649** 25.358**
R2 0.402 0.491 0.502 0.111 0.198 0.361
2
R Change 0.402** 0.089 0.011* 0.111** 0.087** 0.163**
* p < 0.05
** p < 0.01
46