Journal of Economics and Sustainable Development
ISSN 2222-1700 (Paper) ISSN 2222-2855 (Online)
Vol.5, No.24, 2014
www.iiste.org
Dynamics of Poverty among Smallholder Farmers in Ethiopia
Jemal Mohammed
Department of Economics, College of Business and Economics, Haramaya University
PO.box 292, Dire Dawa, Hramaya University, Ethiopia
Email: jaemn100@gmail.com
Jema Haji
School of Agriculturla Economics and Agri Business, College of Agricultural and Environmental sciences,
Haramaya University
Abstract
Wide spread poverty is perhaps the single most serious challenge facing Ethiopia. The country is one of the
poorest in the world with high level of poverty incidence, and low level of percapita income and human
development. This study employed the Jallan and Ravallion approach of modeling transient and chronic poverty
components and separately estimated their respective correlates using Tobit model. The results from the Tobit
model regressions show that households with relatively large number of younger children and those headed by
heads with low formal educational attainment are more likely to fall in to transient and chronic poverty.
Households headed by female also tend to be chronically and transiently poor. Other factors contributing to
chronic and transient poverty include small farm sizes, lower value of total livestock owned, and occurrence of
drought, episode of catastrophic disaster and absence of irrigation schemes. On the other hand, while use of
modern agricultural inputs and access to credit are associated with lower chronic poverty, off farm income,
higher value of crops sold, informal education received by the head of the household and cultivation of chat and
teff significantly reduce transient poverty. Sorghum cultivation is inversely related with chronic and transient
poverty. Coffee is related with higher chronic poverty whereas enset is associated with higher transient poverty.
The policy implications based on the findings of the study includes: expansion of education, creating access to
modern inputs, provision of credit, promoting birth control, promoting cultivation of high yield crops and
expansion of off-farm employment opportunities for the rural poor.
Keywords: transient poverty, chronic poverty, Tobit, components approach
1.
INTRODUCTION
The problem of poverty as distinct from economic growth has been an issue of development agenda mainly since
the liberalization of developing countries from colonial rule. Before the 19707s, economic development was
seen merely as an increase in the growth of GNP/GDP per capita (Ahluwalia, 1978). The problems of poverty,
unemployment, and income distribution were given secondary importance. It was believed that the gains
from the growth of GNP would automatically trickle down to the poor in the form of increased
employment and earning opportunities in the long run (Prebisch, 1953; Myrdal, 1957). However, contrary to this
thinking, economic growth in many new developing countries was being accompanied by rising disparities in
personal as well as regional incomes, rising unemployment, worsening social services and increasing absolute
and relative poverty. Development failed to improve the living of the masses (Adelman and Morris, 1973;
Ahluwalia, 1978; ILO, 1977). This condition sparked the need to reconsider the development process.
A number of reformist strategies which pay varying attention to the problem of poverty and various related
issues have been suggested since the early seventies. Yet the stubborn persistence of poverty is conceivably the
most serious challenge facing the people, governments and development practitioners in contemporary
developing countries. It is only in countries of East and South East Asia that real success in poverty reduction
has been achieved. Outside this region, the improvement is rather disappointing. Sub-Saharan Africa and South
Asia, particularly, are the major heavens of poverty (Islam, 2004).
Ethiopia, being a sub Saharan country, is one of the poorest countries in the world by any standard. According to
the Population Census Commission of the Federal Democratic Republic of Ethiopia (2008), around 83% the
population is concentrated in the rural areas. In the face of traditional technology, sever environmental
degradation, frequent incidence of drought and growing number of population, however, agricultural
productivity of the country has been deteriorating (Markos, 2001; Getahun, 2003). The increased incidence and
severity of drought have caused major fluctuations in agricultural and economic growth and many people have
suffered from protracted famine.
Despite the track record of double digit economic growth reported by the government in recent years, low levels
of income, savings and agricultural productivity, limited implementation capacity, and high level of
unemployment remained serious challenges of the economy and perpetuate the widespread poverty in the
country (MoFED, 2008). Similarly, according to Islam (2004), the “moderate economic growth” achieved in
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Journal of Economics and Sustainable Development
ISSN 2222-1700 (Paper) ISSN 2222-2855 (Online)
Vol.5, No.24, 2014
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Ethiopia in the 1990s did not have any significant impact on poverty reduction in the country.
The low levels of development indexes of the country disclosed by national and international organizations and
researchers confirm the poor condition of the country. According to the study of the Welfare Monitoring Unit
(WMU) of the Ministry of Finance and Economic Development (MoFED, 2002), in 199/00, 45.5% of the
population of Ethiopia was under absolute poverty. The study also showed that, for the same period, more than
2/3 of the children appeared stunted (low height to age ratio) and close to one in ten showed signs of wasting
st
(low weight to height ratio). The 2000 and 2009 UNDP Human Development Reports ranked Ethiopia 171
out of 174 and 182 countries, respectively (UNDP, 2000, 2009). Moreover, according to the UNDP (2009), life
expectancy at birth is 54.7 years, adult literacy rate is 35.9% and primary school enrolment gross rate is 49%.
th
The Human Development Report also ranks the country 130 out of the 135 developing countries. Likewise,
WHO (2010) pointed out that while 38% of the population has access to safe water, only 12% of the population
has adequate sanitation in 2010. In the same year, 48.5 % of the rural population and 23.9% the urban population
suffered from chronic malnutrition. These low development records are reflections of the high level of poverty
status in the country.
There are a number of studies conducted on incidence, and determinants of poverty in ethiopia. For instance:
Swanepoel (2005), Dercon (2002), Dercon (2001), Bogale and Korf (2009), Hagos and Holden (2003), Brown
and Teshome (2007), Asmamaw (2004), (Bigsten and Abebe, 2004) and Dercon (1999), among others, can be
mentioned among others. However these studies, except Swanepoel (2005) and (Bigsten and Abebe, 2004), did
not provide a separate analysis of transient and chronic/permanent poverty in the country, while the determinants
and policy requirements of such componenets of poverty may be quite different. Swanepol (20005) analyzed the
dynamics of poverty in Ethiopia using the1994, 1995 and 1997 rounds of the Ethiopian Rural Household survey
and Bigsten and Abebe (2004) carried out similar study by adding one more round data (2004) of ERHS. Beyond
this, the available literature provides information on total poverty. Given the changing nature of poverty and its
determinants with changes in the social, economic and political arena of the country, studies should be
continuous with the utilization of recent data. The purpose of this study, therefore, is to analyze the determinants
of chronic and transient components of poverty in Ethiopia and scrutinize whether the current generalist view of
poverty research hegemony in Ethiopia provides the right information for policy formulation using relatively the
recent using recent data.
2.
DATA AND METHODOLOGY
2.1.
Data
This study uses a household panel survey dataset from the Ethiopian Rural Household Survey (ERHS) that
covers a total of 1569 households in 18 peasant associations in Ethiopia conducted in 1999, 2004 and 2009. The
data was collected by the Department of Economics at the Addis Ababa University in collaboration with Center
for the Study of African Economics at Oxford University and the International Food Policy Research Institute,
Washington. This is the only panel data available so far on the rural population of Ethiopia.
The survey includes three main sedentary farming system agro ecological zones – the plough-based cereals
farming systems of the Northern and Central Highlands, mixed plough/hoe cereals farming systems, and farming
systems based around enset (a root crop also called false banana) that is grown in southern parts of the country.
The sample is collected so that it can be representative of the small holder sedentary farming system of the
country.
The sampling technique used was stratified sampling to take into account of diversities in agro-ecological factors
in the small scale agricultural areas of the country and to include landless labourers and females in each Peasant
Associations (PAs). The attrition rate was as low as 3% mainly because land is immobile and acquiring new one
in the area of arrival is difficult too (Dercon and Krishnan, 1998).
The data cover households’ living conditions, including income, expenditure, occupation, demographic aspects,
health and education status, occupation, production activities, asset ownership and several other important
aspects of the household economy.
The major source of price to compute the monetary value of commodities is the separate price survey conducted
simultaneously with the ERHS in each PAs or the nearby tow. Whenever prices for some commodities in some
PAs are missing from the ERHS, the price data collected by the Central Statistical Agency (CSA) at zone level
are used. The CSA reports the prices of food and non-food items for each zone and major towns in Ethiopia both
quarterly and every year.
2.2.
Method of Analysis
This study uses consumption expenditure as a measure of welfare/poverty. Consumption is a generally preferred
measures of welfare compared to other measures such as income (Ravallion, 1992; Lipton and Ravallion, 1995;
Deaton, 1997; Kanbur and Squire, 1999; Atkinson, 1989).
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ISSN 2222-1700 (Paper) ISSN 2222-2855 (Online)
Vol.5, No.24, 2014
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Once the measurement index of poverty and the poverty line have been chosen, the various characteristics of the
sample can be modeled to identify the determinants of rural poverty. Poverty status and changes are affected by
both microeconomic and macroeconomic variables. Within a microeconomic context, as prime concern of the
present study, the simplest method of analyzing the determinants of poverty is the econometric technique, in
terms of regression analysis.
Consumption has long lasting or chronic and temporary or transient components, decomposition of which is
possible with the use of longitudinal data. Failure to separate the two components of poverty in any poverty
analysis may result in misunderstanding of the poverty state and reduces the effectiveness of anti-poverty
policies (Jallan and Ravallion, 1998). There is widespread chronic poverty in Ethiopia, but along with that
households also suffer spells of transient poverty (Bigsten and Abebe, 2004). Hence, this study decomposes total
(intertemporal) poverty into chronic and transient components and attempts to identify their respective
determinants in the case of the small holder agricultural regions of Ethiopia. To this end, the components
approach of chronic-transient poverty decomposition is used.
Model Specification
The procedure for examining poverty determinants involves two steps. The first is measuring aggregate poverty
and its chronic and transient components. Based on the measures, the study then investigates their causes
through estimating econometric models.
According to Jallan and Ravallion (1998), the poverty measure in the components approach should be additive
over time and across individuals, strictly convex and decreasing up to the poverty line (and taking a value of zero
thereafter). The convexity assumption rules out the use of the headcount and poverty gap measures. Hence, we
use the squared poverty gap index as a measure of poverty.
The squared poverty gap index is a class of the Foster-Greer- Thorbecke class of poverty measures given by the
n
general formula:
Pa ( x, z ) =
1
n
∑(
gi a
z
)
i =1
Where, x represents income, z is the poverty line, q is the number of the poor; g i is shortfall in chosen indicator
of standard of living, say per adult equivalent consumption expenditure shortfall of the
i th household. That is,
let x i denote the per capita expenditure of household i, then g i = z- x i if x i < z;
= 0, if x i ≥ z.
represents poverty aversion parameter (measures with larger α are more sensitive to the poorest of the poor).
For α = 0, Pα will be equal to the poverty headcount ratio; for α = 1, Pα will be equal to the normalized poverty
gap and for α = 2, Pα will be equal to the squared normalized poverty gap ratio (Foster et al., 1984).
α
In this study, the squared poverty gap for each household is computed from the per-adult-equivalent
consumption expenditure of the household. The dependant variables used in this components approach- chronic
poverty measure and transient poverty measure- are poverty gap indices derived from different types of
consumption expenditures of the household. The derivation process for these dependant variables is shown
below.
The poverty gap of individual i at the time t normalized by poverty line is defined as
git = (1 −
Yit
Z
) , if Y it < Z and,
= 0, if Y it
≥Z
Where Y it is an indicator of well-being (per adult equivalent level of consumption for the present study) and Z
refers to the poverty line. Based on the poverty gap, the total poverty index of individual i over time can be
defined in the following equation:
N
Pi =
1
N
∑g
2
i
t =1
, where N is the number of time periods observed.
Similarly, the chronic poverty index is defined in the following equation based on permanent consumption of
individual i:
Yi 2
ˆ
C i = (1 − Z ) if Yi < Z
0 if Yˆi ≥ Z
^
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ISSN 2222-1700 (Paper) ISSN 2222-2855 (Online)
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Where Ŷ i denotes permanent consumption of individual i which, in practice, is usually estimated as mean
consumption of the individual over time.
n
1
n
Ŷi
=
∑m
it
t =1
m
Where, Ŷ i is average or permanent consumption of individual i, it is the consumption level of individual i at
time t and n is the number of years or time periods over which the average consumption is computed.
Transient poverty is then defined as the difference between the total poverty index and its chronic component as
follows:
Ti = Pi - Ci
It is clear from the two equations above that the measure of transient poverty is constructed to reflect the
variation in household consumption during the years observed, while the measure of chronic poverty is compiled
based on consumption averages over time.
For the analysis of chronic and transient poverty, regression techniques are used. Let us denote the explanatory
variables by the vector X, and random disturbances by ε, we estimate the following models:
C i = α ci + β ' ci X + ε ci
Ti = α ti + β ' ti X + ε ti
Where, C i and T i are the chronic and transitory components of poverty for each household, respectively. The
dependent variables are zero for the level of consumption greater than the poverty line, i.e the poverty measures
are censored at zero as we don’t have negative poverty index. The Tobit model is used to estimate the slope
coefficients.
Statistically, the tobit model can be express as
Yi = β 0 + β j X ij + µ i
, if
Yi > 0
= 0, otherwise
Where the
X ij
s are
explanatory variables and
µ i s are the error terms which are assumed to be independent
2
and normally distributed with mean 0 and variance σ . The estimation of the tobit model involves the use of
maximum likelihood method.
Let F (.) is and P (.) denote the cumulative distribution function (cdf) and the probability density function (pdf)
of the N(0, 1) distribution. For the Tobit model, the probability of a zero response is:
P(Y=0) = P(
=P(
β 0 + β j X ij + µ i ≤ 0)
− β 0 − β j X ij ≤ µ i )
=F(
(− β 0 − β j X ij )σ −1 )
=1- F(
( β 0 + β j X ij )σ −1 )
Y
For i >0, the probability density function is
a sample of n independent observations is
∏ {1 − F (σ
φ ( β , σ )=[ Y =0
i
−1
−1
σ −1 F( (Yi − β 0 − β j X ij )σ ) . Thus, the likelihood function for
(− β 0 − β j X ij ))}][∏ σ −1 F (σ −1 (Yi − β 0 − β j X ij ))]
Yi > 0
This likelihood function is estimated using STATA statistical software.
3. RESULTS AND DISCUSSION
3.1. Derivation of the poverty Line
The poverty line used in the preset study is derived based on the cost of basic needs approach. The food poverty
line is constructed using basket of food items of the half poor of the sample population in the Ethiopian Rural
Household survey (ERHS) following Dercon and Krishnan (1998), which is also used by Swanepoel (2005). The
amount of each food item in the basket is determined so that the total per adult daily energy intake will be the
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Vol.5, No.24, 2014
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2300 kcal recommended by the World Health Organization (WHO) (1985). Accordingly the poverty line is
found to be 1023 per adult equivalent per year. The detailed calculation of the poverty line is presented in
appendix C.
3.2. Diagnostic tests
The highly significant F-test statistics of the Tobit model analyses of chronic as well as transient poverty and the
chi-square test statistics of the ordered probit model shows a good fit of the models. Moreover, the good fit is
also confirmed by the high level of consistency of the result of the two models. Further, the necessary diagnostic
tests are conducted to check the validity of the Tobit model used in this study. The data is tested for the existence
of the problem of hetrocedasticity is using the Breusch-Pagan/Cook-Weisberg test and successfully passed. The
existence of Multicolienarity is also tested using variance inflation factor (VIF) test and the correlates are found
not to be highly colienar with an overall VIF value of 5.7. Moreover, the dataset has also passed the test of
normality using The Jarque–Bera normality test.
3.3. Results and Discussion
The result of this study shows that there is high incidence of both chronic and transient poverty among the
sample households. Based on the headcount index, 43% and 63% of the population is chronically and transiently
poor, respectively.
The result of the Tobit Regression is reported in Table 1 of the appendix. The two measures of physical asset
considered in this study, land holding and money value of livestock, are important determinants of both chronic
and transient poverty. The value of the indices of both types of household poverty are found to significantly and
inversely vary with the size of holding and the total monetary value of livestock owned by the household, though
the impact gradient of these determinants, especially of size of land, is steeper for chronic poverty. This result
confirms the findings of many other similar studies. For example, Jallan and Ravallion (1998) found that greater
command on physical asset reduces both the chronic and transient components of poverty in rural china. Other
studies based on aggregate poverty, such as Brown and Teshome (2007), Dercon (1999) and Hagos and Holden
(2003) also found inverse relationship between land and physical asset ownership.
Land and livestock provide owner households with means of consumption as well as security. It is apparent that
rural households heavily depend on agricultural production as a source of livelihood. The amount of agricultural
output, however, highly depends on the size of the land owned by the household, cetrus paribus. Livestock can
be direct source of food; it can be sold to generate cash to settle non consumption payments and to purchase
household consumables in bad periods. Land and livestock ownerships are also a basis of empowerment among
the rural people, which, in turn, determines the self esteem and bargaining competences of individuals. In
addition, ownership of assets also increases creditworthiness and eases access to credit, which then could be used
either for investment or to level current consumptions. The psychological sentiments and economic opportunities
provided by asset ownership cumulate to less risk aversion and higher investment potentialities of the
households. Hence, asset ownership has both far-reaching as well as short term benefits to rural households.
The result of this study, however, seemingly contradicts with that of Alemayehu et al. (2005) and Bogale and
Korf (2009). The former study, which is carried out on Kenya, argues that number of livestock owned and size
of land holding are significantly related with poverty status. And according to the later study, which is conducted
on the Eastern Hararghe highlands; it is the size of the irrigated land that determines household poverty not the
mere size of land. The result that size of land holding does not help to reduce poverty would be due to aridity
and/or serious soil degradation in the study areas. In such regions, no matter how large holdings are, output
would be scanty unless modern inputs and irrigation schemes are used. Once these supplementary inputs are in
order, land size still matters.
The use of irrigation is associated with lower level of both chronic and transient household poverty. Bogale and
Korf (2009) also found similar result. It is generally believed that irrigation infrastructure development provides
large benefits to the production activities in agriculture. The development of irrigation infrastructure contributes
to increased productivity, and raises long-term production and income levels. Availability of irrigation facilities,
especially in arid and semi arid agricultural areas, significantly raises land as well as labour productivity and
thereby reduces chronic poverty. Access to irrigation water also enables small and poor households to better
manage risks and reduce income fluctuations caused by drought or other seasonal climatic fluctuations. This
income stabilization and smoothing effect of irrigation infrastructure contributes to transient poverty reduction
by helping in consumption smoothing.
The use of modern agricultural inputs on the other hand, significantly reduces chronic poverty but its negative
impact on transient poverty is insignificant. Modern agricultural inputs help increase grain yields per hectare of
plot and thereby improve household well being. The classical study of Jallan and Ravallion(1998) found that
higher crop yield reduces chronic as well as transient poverty. However, in Ethiopia the major causes of lower
crop yield are frequent and protracted drought, and soil degradation; and the use of inputs is thus mainly oriented
towards mitigating these problems, which have long term impacts. Managing the problem of drought requires the
use of irrigation or appropriate water harvesting system, as explained above, and the later problem requires the
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use of fertilizer among others. The use of fertilizer for example helps increase output but not-using-it does not
result in sudden complete loss of harvest. Some other catastrophes, such as flood, frost and wind which are also
common in Ethiopia cannot be tackled by the use of modern inputs. Generally, the modern agricultural input use
in Ethiopia is related to augmenting land fertility and drought aversion; and infrequent for protecting loss of
harvest. Therefore, use of modern input helps significantly reduce chronic poverty but little of transient poverty.
This explanation is also supported by the finding of Jallan and Ravallion (2000).
Similarly, the amount of loan taken by the household is strongly inversely related with chronic poverty but its
impact on transient poverty, though negative, is insignificant. One possible explanation of this result is that
obtaining loan might be difficult for the poor who would have used it for direct consumption in the same period
to smooth their consumption because they do not have collateral. Obtaining loan is instead relatively easier for
those households who intend to invest on their land and/or acquire additional assets which could have long term
welfare impacts. Moreover, households with their own resources will need less credit to smooth consumption.
The limited use of fertilizer and other high-productivity inputs in Ethiopia is partly due to limited availability of
credit to smallholders.
The episode of disaster increases household chronic poverty marginally but transient poverty significantly. The
types of shocks included in this category include damages caused by flood, frost, wind, animal and plant pests.
Shocks, unless they are recurring, are likely to increase transient poverty but not chronic poverty. In Ethiopia,
these types of shocks are lees recurrent. The major problems causing rather widespread rural poverty in the
country are drought and loss of soil fertility (Markos, 2001).
Good rainfall condition (sufficient amount and good distribution over the last major cropping season, (“Meher”),
though it is inversely related with both chronic and transient poverty, seems to be a trivial factor at the first
glance. When it is combined with the incidence of disaster, however, is a strong determinant of rural poverty.
Good rainfall condition strongly reduces both chronic and transient poverty in times when there is no disaster.
The incidence of sever disaster, indeed, would result in loss of harvest, no matter how the rainfall is favourable
and the growth of the crop is promising.
Labour participation rate on own farm is negatively related with chronic poverty but varies less with transient
poverty. On the other hand, off-farm income reduces transient poverty but not chronic poverty. Mentewab et al.
(2010) argued that in Ethiopia, people participate in off farm employment to generate income to smooth their
consumption when there is considerable fluctuation in rain fall which would consequently result in fluctuation of
agricultural produce. It is the availability of idle labour which depends on the condition of rainfall and the
shortage of cash that control the decision to work on off-farm activities. Muyanga (2007) also found that offfarm income generating activities, such as safety net programmes, can help only reduce transient poverty.
Moreover, it is likely that the landless laboureres spend most of their time in off-farm activities while the landed
farmers are usually busy on their own farms.
Households headed by a person who have received some formal education are less likely to be both chronically
and temporarily poor. Informal education received by the household head, tends to increases the chance of
falling in to chronic poverty, though statistically insignificant, but reduces the likelihood of being temporarily
poor. The category of informal education includes adult literacy and religious teachings. The result that this
category of education does not help reduce household chronic poverty might be due to less devotion of the head
to farm activities. Religious persons usually spend more time in community services and off farm income
generating activities rather than the formal farm activities.
Educational achievement of the head of the household, particularly formal education has been strongly praised
by almost all poverty literatures for it reduces poverty. The majority of empirical studies converged on that
formal education by the head of the household or any member in the household is strongly and negatively related
with chronic poverty. However there are variations regarding the role of education on transient poverty
reduction. For instance, Jallan and Ravallion(1998, 2000) and Muyanga et al. (2007) found that households with
formal educational achievement tend to be less chronically and transiently poor. In Ethiopia, all the total poverty
studies such as Dercon (1999), Asmamamw (2004), Hagos and Holden (3003) and Bogale and Korf (2009),
asserted that educational is an important tool of reducing poverty. Generally, educated heads have higher income
earning potential and more alternative income earning opportunities, and are thus better able to improve the
quality of their respective households’ welfare.
Coming to the effect of some demographic variables, household size, age of the household head, dependency
ratio, the number of children below 7, the number of male children 7 to14 years old and number of female
children aged 7-14 are all positively related with both chronic and transient poverty. Nonetheless, only the
number of children less than 7 years old is significant for both chronic and transient poverty. On the other hand,
dependency ratio and age of the household head are significantly related with chronic poverty and transiently
poverty, respectively. The result that households with larger number of children are likely to be chronically and
transiently poor is similar with the finding of Jallan and Ravallion (1998). According to the study, households
with more number of children aged less than six years are more likely to be both chronically and transiently poor
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while households with children aged above 12 years are less likely to be both transient and chronic poor.
Nonetheless, the result for the effect of house hold size and dependency ratio falls short of confirming the
common view that house hold size is strongly positively related with poverty in developing countries. However,
the addition of children to the household does not add only eating hands but also inspires the household to work
more hours and to seek new ways of generating income. Since the downfall of the imperial regime, the size of
the household’s land holding in Ethiopia is also determined based on its size which counters the negative effect
of large household size. Moreover, children also start to provide additional family labour since their early years.
Though not as significant as the magnitude in rich countries, households in poor countries also benefit from
economies of size. On this regard, Lanjouw and Ravallion (1994) argues that the “Widely cited evidence of a
strong negative correlation between household size and consumption per person [in developing countries] is
unconvincing, given that even poor households face economies of size” . Nevertheless, the negative impact of
population growth on welfare at community or higher levels would be sizable through its impact on
environmental degradation (Angelsen and Kaimowitz, 1999) and on public budget.
Female headed households tend to be both chronically and transiently poorer than their male headed
counterparts. Women poverty is largely a result of deprivation- that they lack physical as well as human capital.
Women in many societies are usually excluded from their social, political and economic rights which translate in
to illiteracy, landlessness and voicelessness. Thus, women in many rural societies relatively lack the productive
assets and bargaining skills to improve their livelihoods. The absence of infrastructure like health services and
clean water sources also adds to the misery of women. Moreover, women are sometimes physically and sexually
harassed by men, which distort their psychological as well as physical development and well being. A number of
studies have found that women share a disproportionate burden of poverty relative to men.
Poverty also varies with some type of major crops cultivated by the household. Cultivation of sorghum is
inversely related with both chronic and transient poverty. The same result if found in Swanepoel (2005). This
might be due to the high yield and drought resistant nature of the crop. Coffee, on the other hand, is related with
higher level of chronic poverty which might be due to low price of coffee in the international market and the
disproportionately low share of farmers in the total value of coffee. For instance, international coffee prices
declined by more than 50% in the period 1998 – 2001 and reached their historic low level (Teferi and Dejene,
2002; World Bank, 2001). As result coffee farmers in developing countries, the majority of whom are poor small
holders, have been selling their product for much less than they incurred to produce and have suffered from
poverty. Moreover, teff and chat are related with lower level of transient poverty, while enset cultivation is
associated with higher level of transient poverty. Teff is a short term crop which can be produced two times in a
year and such frequency halves the period between two harvests and helps households smoothing their
consumption. The waiting period is even much shorter for chat. Contrarily, enset is a perennial crop and its
cultivation involves several waiting years between two harvests. Enset farmers try to smooth their harvest by
dividing their land planting enset crops at different times so that they can be harvested at different periods.
However, given the acute shortage of land in the enset growing regions of the country, it is not possible to totally
smooth-out enset production.
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Table1: Result of the Tobit model regression; determinants of chronic and transient poverty
Explanatory variable
Chronic poverty
Transient poverty
Coefficient
p-value
Coefficient
p-value
HHSIZE
0.0032402
0.380
0.0020967
0.67
AGE
0 .0004718
0.154
0.0002958*
0.009
LS
-0.0391793*
0.00
-0.006207**
0.023
VTLO
-0.0000213*
0.00
-5.84e-06*
0.000
OFFINC
-0.0000228
0.185
-0.000011**
0.029
CREDIT
-0.00988*
0.002
-9.28e-06
0.268
VCS
-0.0002669
0.309
-0.0222**
0.022
LPR
-0.001105*
0.002
-0.000113
0.224
CH7
0.0238382*
0.003
0.0008286
0.740
CHM
0.0101185
0.254
0.0005327
0.848
CHF
0.0084663
0.313
0.0001115
0.967
EDUINF
0.0059555
0.754
-0.011072***
0.083
EDUF1
-0.0469963**
0.024
-0.023594*
0.001
EDUF2
-0.0905268 *
0.00
-0.024699*
0.00
UMAI
-0.0396859*
0.007
-0.0012997
0.12
DISASTER
0.0226848***
0.076
0.0202889*
0.00
GRFC
-0.055754*
0.008
-0.007464
0.158
GRFCND
-0.0669078*
0.006
-0.015035*
0.003
TEFFF
0.0009805
0.946
-0.019955*
0.00
WHTBRLY
-0.0036612
0.815
0.0064644
0.198
SGHM
-0.0425688**
0.028
0.0165917*
0.007
MAIZE
0.0214167
0.152
0.0014345
0.771
COFFEE
0.0799031*
0.001
0.0079189
0.304
CHAT
0.0077036
0.723
-0.036104*
0.00
ENSET
-0.0070123
0.778
0.0212079*
0.008
OC
-0.068582*
0.00
0.0041096
0.375
IRRIG
-0.1017945*
0.00
-0.028029*
0.00
SEX
0.0407473*
0.006
0.009917**
0.046
Constant
0.1264383*
0.00
0.052954*
0.00
Log likelihood ratio = -294.9994
799.32759
Pseudo -R2 = 0.3824
-0.2064
F( 29, 1540) = 9.67
9.02
Prob > F
= 0.0000
0.0000
Obs summary
/sigma | .182336 .0059063
.1707507 .1939213
581 left-censored observations at
-----------------------------------------------------------------------------Obs. summary:
894 left-censored observations at transientpoverty
chronicpoverty
988 uncensored observations
675 uncensored observations
0 right-censored observations
0 right-censored observations
* significant at 1% degree of freedom
** significant at 5% degree of freedom
*** significan at 10% degree of freedom
5. Conclusion and Policy Implications
Ethiopia has passed through different macroeconomic reforms and development strategies adopted by the
government since the last two decades. The introduction of a relatively liberal economic policy and the
prevalence of peace have initiated the involvement of the private sector in the economy. As response of these
changes, the country has experienced high level of economic growth in recent years. Nevertheless, this economic
growth has not improved the livelihoods of the majority of poor, particularly the rural population. According to
the result of the study, though chronic and transient poverty are largely determined by the same set of
explanatory variables, there are still significant differences demanding the chronic-transient decomposition for a
separate analysis and distinctive policy recommendations.
The following policy implications are drawn based on the findings of the study.
• Human capital formation through education, particularly formal education, is an important determinant of
52
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Vol.5, No.24, 2014
•
•
•
•
•
•
•
www.iiste.org
poverty reduction-both chronic and transient. Expansion of formal educational opportunities to the rural
children is a vital investment in the future families. Therefore, the current effort of the government and civil
societies to increase the enrollment rate of the rural people should be sustained. Educational quality
improvement should also been given equal concern for a maximum result.
Female headed households were found to be likely both chronically and transiently poor. Women poverty is
largely a result of lack physical as well as human capital and social exclusion. Thus, policies aimed at
empowering women through increased participation in social, political and economic affairs of their family
as well as community, promoting women access to financial resources and property ownership, such as land
would be appropriate. Also, the absence of health services and clean water sources usually translate into
added burdens for women. Hence, provision of maternal health services and clean water help in relieving the
disproportionate burden on women. Often, women are also physically and sexually harassed by men. A
combination of strategies ranging from awareness creation to opportunity equalization, legal protection and
affirmative actions are vital to alleviate women-specific poverty.
Land-intensification technologies such as the use of fertilizer, high yield and drought resistance varieties,
pesticides and insecticides are found important determinants of chronic poverty reduction, where as
development of irrigation schemes reduces both chronic and transient components. Thus, policies that
increase the provision of such technologies and the rate of adoption by the farmers should be promoted. The
capacity of the agricultural research centers and universities should be strengthened. The work of these
institutions should not be confined only to their laboratories; they should work based on need assessment
and more closely with farmers. Farmers also need institutional support such as access to credit and extension
services. Expansion of irrigation schemes in the arid and semi-arid areas would also produce new arable
lands and helps to relive the problem of land fragmentation in wet fertile areas.
Creating access to credit is important to increase the capacity of farmers to afford modern inputs.
Strengthening and widening the breadth and depth of the current micro finance credit would be a great help
for the poor farmers who do not have access to formal banks. The capacity of the microfinance institutions
can be strengthened, for example, by helping them to borrow from formal commercial banks through
government guarantee. The expansion of rural road infrastructure also helps significantly reduce cost of
input transportation.
Irrigation is one of the most important determinants of chronic and transient poverty reduction. Hence,
development of irrigation schemes and water harvesting systems is essential for poverty alleviation among
the small holder farmers in Ethiopia.
There is strong positive relation between the number of children under the age of 7 years and the chronic
and transient components of poverty. Hence, family planning programmes that educate households about the
merits of having small number of children and birth control supports to households are essential. However,
the cost of birth control efforts should not be excessive as implied by many literatures of poverty. It is
already mentioned that the common view that household size is strongly positive related with household
poverty is exaggerated and needs be reconsidered. The optimal cost of birth control implied by this view
would be higher than what it really should be.
The value of crops sold by households is strongly and inversely related with transient poverty. The rural
households usually sale their high value crops, such as teff and wheat , to purchase either more quantity of
low value crops or spend the surplus in the purchase of non food consumables. Such mechanism s would
enable the producers of high value crop producers to smooth their consumption during bad spells of poverty.
Hence, policies that promote the production of high value crops can reduce transient poverty.
Off/non farm income also strongly reduces transient poverty. Off/non farm income generating schemes such
as safety net programmes, and expansion of small scale industries and rural business activities would help
farmers to relieve their temporary problems. Households who has no land and cattle, female headed
households, households who have large number of children, households headed by old aged heads, etc are
identified as transiently poor and the safety net progrrrame should target such households. The worrying
danger of safety net progrranmes is that they kill the incentive for on farm work and creativity, which in turn
would perpetuate chronic poverty.
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Annexes
Annex A: description of measurement of variables and abbreviations
Variables
Measurement
Adult equivalent consumption
Monetary value of percapita consumption adjusted for age
of household members using appropriate scales
Household size
Number of household members in adult equivalent terms
Age of the household head
Number of years
Number of children less than 7 Number
years old
Number of male children between Number
7 and 14 years old
Number of female children Number
between 7 and 14 years old
Sex of household head
Dummy: value =1 if head is female and 0 if Male
informal education received by the Value=1 , if the head of the household attended some
head of the household
religious teaching and/or adult literacy program-me and 0
other wise.
Educational achievement up to Dummy: Value =1 if maximum grade achieved by the
grade 4 by the head of the head of the household is not greater than 4 and 0 otherwise
household
wise
Educational achievement up to Dummy: Value=1 if Maximum grade achieved by the
grade 4 by the head of the head of the household is greater than 4 and 0 otherwise
household
Land size
Amount of land holding in hectare units
Value of total livestock owned
Monetary value of total livestock owned
Labour participation rate
Male adult equivalent hours worked
Abreviations
HHSIZE
AGE
CH7
CHM
CHF
SEX
EDUINF
EDUF1
EDUF2
LS
VTLO
LPR
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Vol.5, No.24, 2014
Continued
Off/non farm income
Value of crops sold
Credit
Use
of
modern
agricultural inputs
Disaster
Good rainfall condititon
Good rainfall condition
and
no
catastrophic
disaster
Use of irrigation
Teff
Maize
Sorghum
Wheat and barley
Chat
Enset
Other crops
www.iiste.org
Monetary value of all non farm incomes.
Monetary value of all crops sold in the last four months
Monetary value of Loan taken in the last four months greater than
Birr 20
Dummy: Value=1 is the household uses any modern agricultural
inputs in the last one year
Dummy:Value=1 if the household encounters sever levels of any of
flood, frost, wind, insect damage and plant disease in the last one
year and 0 otherwise
Dummy: Value=1 if rain fall is sufficient for plant growth and it is
also well distributed over the cropping period in the last “Meher
season” and 0 otherwise.
Dummy: Value=1 if rain fall condition is good and no disaster has
been encountered in the last “Meher” season and 0 otherwise.
Dummy: Value=1 if the household uses irrigation scheme and 0
otherwise
Dummy: Value=1 if the major crop grown by a household in the last
3 years is teff and 0 zero otherwise
Dummy: Value=1 if the major crop grown by a household in the last
3 years is maize and 0 zero otherwise
Dummy: Value=1 if the major crop grown by a household in the last
3 years is sorghum and 0 zero otherwise
Dummy: Value=1 if the major crop grown by a household in the last
3 years is whet and/barley and 0 zero otherwise
Dummy: Value=1 if the major crop grown by a household in the last
3 years is chat and 0 zero otherwise
Dummy: Value=1 if the major crop grown by a household in the last
3 years is enset and 0 zero otherwise
Dummy: Value=1 if the major crop grown by a household in the last
3 years is other than listed above and 0 zero otherwise
Annex B: Diagnostic Tests
B1: Jacque-Bera test for normality of continuous variables
Variables
Prob>chi2
HHSIZE
0.6627
AGE
0.9422
CH7
0.5963
CHM
0.7902
CHF
0.9286
LS
0.5082
VTLO
0.2238
LPR
0.7307
OFFINC
0.7429
VCS
0.4183
CREDIT
0. 7166
Permanent consumption
0.9436
Index of chronic poverty
0.5652
Index of transient poverty 0.6481
All
0.7156
56
OFFINC
VCS
CREDIT
UMAI
DISASTER
GRFC
GRFCND
IRRG
TEFF
MAIZE
SGHM
WHTBRLY
CHAT
ENSET
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B2: VIF test for multicolinearity
Variable
VIF
AGE
1.38
CH7
1.29
CHAT
0.58
CHF
1.21
CHM
1.25
CREDIT
3.86
DISASTER
1.341
EDUF1
1.07
EDUF2
1.02
EDUINF
1.12
ENSET
6.35
GRFC
1.46
GRFCND
2.01
HHSIZE
1.58
IRRG
4.16
LPR
2.59
LPR
2. 46
LS
1.2
MAIZE
1.79
OFFINC
5.59
SEX
1.2
SGHM
1.64
TEFF
2.51
UMAI
3.29
VCS
4.54
VTLO
1.24
WHTBRLY
4.16
Mean VIF
2.74
Appendix C
Note on the Derivation of the poverty Line
Given an appropriate measure of welfare, the identification of the poor necessitates that a poverty line be
determined below which individuals or households are considered poor. The poverty line for a given individual
is the money that the individual needs to achieve the minimum level of welfare not to be judged poor. Poverty
lines may be objective or subjective (Ravallion, 2008).
In this study the cost of basic needs (CBN) approach is employed to derive the poverty line. In this approach the
poverty line is derived in two stages. In the first stage, the food poverty line is derived. The food poverty line is
the cost of a food consumption bundle which is deemed to be sufficient to provide a minimum energy
requirement for a person to keep up normal activities, such as the 2,300 Kcal per day threshold set by the World
Health Organization (1985). Once the food poverty line is determined, then an allowance for non-food
commodities and services will be added, in the second stage, to arrive at the total poverty line. This is done by
dividing the food poverty line by the share of food in total expenditure of individuals whose food consumption is
in the 10 % vicinity (5% above and 5% below) of the food poverty line (Ravallion, 1992; Ravallion and Bidani,
1994).
The Mathematical Derivation of poverty line derivation is as follows:
Suppose
q ij
is the amount of food item i consumed by individual j in the half poor of the sample. The total
N
amount of commodity i consumed by half poor of the sample population, say
; where N is the number of half poor of the population.
Qi , can be given as:
Qi = ∑ qij
j =1
ci is the caloric content of a standard unit of food item i. Then, the total caloric intake by half
W
W = ci Qi . Similarly, the total caloric intake
poor of the population from food item i, say i , can be given as: i
Suppose now
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Journal of Economics and Sustainable Development
ISSN 2222-1700 (Paper) ISSN 2222-2855 (Online)
Vol.5, No.24, 2014
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m
TW = ∑ Wi
T
of the population from all food items, say W , can be given as:
items consumed by half poor of the sample population.
i =1
; where m is the number of food
Wi
Tw
The actual caloric share of commodity i in the total caloric intake of half poor of the population is . The
caloric share of food item i in the 2300 kcal per adult per day, which forms the poverty line, should be
proportional to its share in the actual caloric intake. Hence, the weighted caloric share of food item i in the 2300
Wi
Wi
kcal is 2300( Tw ) kcal. The amount of commodity i that meets this caloric content is 2300( ciTW ) units, which can
Qi
be reduced to 2300( TW ) units.
Suppose the spatial average price of food item i is
m
∑
Pi , then the monetary poverty line can be given by the
Pi QI
TW
formula 2300 i =1
.
The food poverty, which is Birr 716 per adult equivalent per year, is computed by multiplying the amount of
each food item by its respective spatial average prices. The allowance for the non food consumption is computed
by averaging the non-food consumption of individuals whose food consumption is 5% above and below the food
poverty line. In order to account for the possibility of change in the consumption pattern of households, the non
food consumption expenditure is averaged over time for each household and then averaged across households.
Finally, the total poverty line, which is Birr 1023 per adult equivalent per year, is derived by dividing the food
poverty line by the share of food in total consumption.
58
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