1. Introduction
In 2015, the 17 Sustainable Development Goals
(SDGs) were proposed by United Nations to promote actions to end poverty,
protect the planet and ensure people’s peace and prosperity by 2030. The goals
include no poverty, good health and well-being, sustainable cities and
communities, etc. These sustainable issues are believed to be more severe in
rural areas than urban regions due to the less developed transportation, poor
sanitation, and the lack of financial and economic resources (Chaudhuri &
Roy, 2017; Nakamura, Bundervoet & Nuru, 2020; Nakamura, 2022). For a rural
family, a sudden illness may cause the family to lose its labor force and thus
have no source of income, and the expenditure on disease treatment makes it
even more difficult for the family to maintain (Isoto, Sam & Kraybill,
2017). As a result, poor rural households will become poorer, and the gap
between rural and urban areas will continue to widen. Health shock can cause
poverty. Therefore, studying health shock’s impacts on rural household welfare
has a significant implication for rural sustainable development.
There are substantial differences between rural
areas in developing countries and rural areas in developed countries in terms
of income level, social welfare security, and education level (Lagakos, 2020).
We chose the largest developing country China as the sample for several
reasons: (1) as a large agricultural country, China has large tracts of land,
villages, and communities that are still in a rural state, providing a large
number of samples; (2) Chinese government proposed a New Rural Cooperative Medical
System (NRCMS) in 2015 which covered 20% to 60% medical expenditures for rural
households; (3) the spatial and geographic difference is also pronounced in the
case of China and we can compare the impacts in different regions.
Briefly, according to the National Burea of
Statistics, in 2020, China's GDP exceeded 100 trillion yuan, and the per capita
GDP reached 72,447 yuan, but the per capita disposable income in rural areas is
merely 17,131 yuan, indicating a significant urban-rural development gap. In
addition, rural grassroots organizations generally have an incomplete social
security system, and a large number of rural families face excessive medical
burdens, which are more likely to lead to excessive debt. Improving the welfare
and happiness of rural families is taken as one of the most important tasks
that the Chinese government has persisted in for a long time. Therefore, this
paper focuses on the impact of medical borrowing on household welfare when
rural households face health shocks.
We used data from the 2019 China Household Finance
Survey to empirically analyze the impact of borrowing on household welfare
after rural households suffer health shocks. In order to obtain an accurate and
robust research result, we used the OSL least squares method combined with the
propensity score matching method (PSM) to solve the endogeneity issue. Firstly,
the propensity score matching (PSM) method is used to analyze the impact of
borrowing on household welfare; secondly, the group regression method is used
to study rural households in the eastern, central, and western regions.
Our main contributions are: first, this paper
analyzed the impact of borrowing on rural household welfare under health
shocks, including the impact of income, consumption, and employment, which is a
significant supplement to the field of rural development research; second, this
paper examines the heterogeneity of different regions, which can provide a
deeper understanding of the characteristics of rural households in different
regions of China facing health shocks; third, based on the analysis and conclusions,
this paper also provided suggestions regarding rural policies to enhance the
overall well-being, health, and sustainable development of rural areas.
The follow-up content is arranged as follows:
first, review the relevant literature; second, introduce the data, models, and
variables used in this paper; third, analyze the empirical results; finally,
summarize the research conclusions and put forward policy recommendations.
2. Literature Review
2.1. Borrowing and Rural Household Welfare
Views differ on the impact of borrowing on rural
household welfare. On the one hand, it is believed that borrowing can increase rural
household welfare. Tonch & Sohn (2022) suggest that informal borrowing,
which is a more common form of borrowing than formal borrowing in rural areas,
can increase household welfare by 4.3%. Lin, Wang, Gan & Nguyen (2019) also
provide evidence that credit constraint negatively affects rural household
welfare and advises providing more formal borrowing to rural families. Because
borrowing increases disposable family income protects family consumption and
improves family welfare. However, the borrowing under the case of health shock
might be different, which we will illustrate further.
On the other side, some research indicates that
household welfare in rural areas might not be enhanced by borrowings, on the
contrary, the welfare can be even mitigated and it can lead to other issues
such as child labor within the family (Chakrabarty, 2012). The reason is that
in the long term, if the borrowings cannot realize their value in time, the
rural households have to undertake the financial expenses after repaying the
debt. Duong and Thanh (2014) also showed that for low-income groups, loans can
only protect their consumption and can not improve their income well. At the
same time, banks and financial institutions rarely target the poor in the rural
areas, but target the relatively wealthy groups, which will further increase
the gap between the rich and the poor.
However, the general discussion about the impact of
borrowing on rural household welfare might not be convincing enough as we could
hardly observe where the borrowings flow to and whether the borrowings can be
used right and successfully. But health shock provides a certain background for
analyzing borrowing’s impacts on rural household welfare and can lead to a more
certain and convincing result.
2.2. Health Shock and Rural Household Welfare
From the perspective of the dynamics of poverty
caused by illness, Hong and Chang (2010) believed that health shocks would
cause families to fall into temporary poverty in the short term, but the
long-term impact could be very small. However, Alam & Mahal (2014) showed
that in the face of health shocks, households can reduce the incidence of
poverty by borrowing from relatives and friends in the short term, but it would
increase the incidence of poverty in the long run. From the perspective of the
impact of health shocks on household consumption, some scholars have pointed
out that households could smooth consumption in the short term (Liu, 2016;
Mitra, Palmer, Mont & Groce, 2016). However, other scholars have shown that
health shocks had a significant negative impact on household health and
non-health expenditures (Wagstaff & Lindelow, 2014; Asfaw & Braun,
2004). Some scholars believe that after a health shock, the new rural medical
system increased household non-medical expenditures, but had no significant impact
on medical and healthcare expenditures (Bai et al., 2012). In addition, Cheung
& Padieu (2015) showed that the NCMS had a negative impact on savings in
the middle household income, but had no significant impact on the poorest. And
NCMS can significantly reduce the savings of wealthy people when they do not
benefit from other health programs.
We draw much inspiration from the previous
literature on the effects of health shocks and borrowing on households. Due to
the dual structure of urban and rural areas in China, rural residents have a
greater risk exposure than urban residents, especially in the face of greater
vulnerability to health risks. Borrowing is one of the main ways for rural
households to deal with health shocks. However, at present, there is no
in-depth discussion in this field that analyzes the borrowings’ impacts on
rural household welfare under the background of health shocks. Econometrically,
most studies only stay in the traditional instrumental variable method (IV) to
deal with the endogenous problems in the model. With the development of
econometrics in recent years, it is more appropriate to use causal inference
models that are more effective in dealing with endogenous issues (Ichimura
& Taber, 2001). This paper adopted the propensity matching score (PSM)
model, which we would introduce in detail in the following sections. We also
took the geographical differences into consideration and studied the
heterogeneity across different regions of China.
3. Data and Model
3.1. Data and Variables
We used China Household Finance Survey (CHFS) data
provided by the Survey and Research Center for China Household Finance of
Southwestern University of Finance and Economics in 2019. Specifically, the
dataset was collected using a nationwide random sampling survey with large
sample size and high representativeness. Questionnaire question was
"A2025b: Compared with his peers, how is [CAPI load name]'s current
physical condition? 1. Very good, 2. Good, 3. Average, 4. Not good, 5 Very
bad". In this paper, the rural households whose respondents answered “4.
Not good or 5. Very bad” were defined as families suffering from health shocks.
After removing outliers and missing samples of key variables, 12,587 samples
were finally obtained, of which 6,129 samples were affected by health shocks,
and 6,458 samples were not affected by health shocks.
The explained variable was family welfare.
Referring to previous literature, we examined family welfare in three aspects:
first, family income (yuan/year); second, consumption expenditure, including
food expenditure (yuan/year), education expenditure (yuan/year), tourism
expenditure (yuan/year), health care expenditure (yuan/year); the third is
labor participation, including weekly working hours and proportion of the
employed.
The explanatory variable in this paper was whether
to borrow or not after suffering a health shock, with borrowing households
denoted as 1 and non-borrowing households denoted as 0. The control variables
in this paper were owner characteristics, household characteristics, and
household economic variables. The owner characteristic variables include age,
education level, type of household registration, and whether the owner is
employed. Household characteristics include financial literacy, family size, and
average age of the family. The per capita GDP of the province is the household
economic variable.
Table 1 shows
the means of the variables under different groupings. Since this paper mainly
focuses on the impact of borrowing on rural household welfare under health
shocks, the descriptive statistics in this paper only show the mean value of
the sample. It can be seen from
Table 1 that, compared with no health shock, the family welfare of the health shock
group has declined. In terms of income, the average annual income of families
without health shocks is 52,900 yuan, and the average annual income of families
with health shocks is 37,200 yuan, a decrease of 29.7%. From the perspective of
consumption, food expenditures, education expenditures, tourism expenditures,
and health care expenditures all declined, of which the largest decline was in
tourism expenditures and the smallest decline in food expenditures. At the
labor level, both the weekly working hours and the proportion of working people
in households affected by health shocks decreased. In addition, the owners of
households affected by health shocks are older, less educated, and less
financially literate, and the average age of households is older.
Columns 3 and 4 of
Table 1 show borrowed and unborrowed households
under health shocks. The results show that households with borrowing had a
larger decline in welfare, especially household income, but education spending
increased instead. Even if the family suffers a health shock, the family will
try to avoid reducing the quality of education as much as possible. In terms of
household head characteristics and family characteristics, under health shocks,
compared with non-borrowing households, households with borrowings have younger
owners of households, more financial knowledge, larger family size, and lower
average age of households.
3.2. Model
To examine the impacts of health shocks on rural
household welfare, we first write the simple basic regression model as follows:
is the explained variable, i.e., family
welfare; is the explanatory variable, i.e., whether rural
families are affected by health shocks; is the control variable, i.e., family
characteristic variables, household owner characteristic variables, and
provincial dummy variables; and is the stochastic term.
Using the Ordinary Least Squares (OLS) method to
estimate is easy to cause endogeneity problems. In order to solve the possible
endogenous problems in the model, we used the Propensity Score Matching (PSM)
method to match and screen the control group samples. The control group is the
households that have borrowed under the health shock, and the treatment group
is the households that have not borrowed under the health shock. The propensity
score was calculated using the PSM method.
The propensity score is the conditional probability
that a rural household enters the treatment group given the corresponding
control variables:
In equation (2),
is a given control variable and
is a binary variable of whether there is a
borrowing.
indicates that rural households borrow when faced
with health shocks.
means that rural households
will not borrow when faced with a health shock.
indicates the conditional
expectation of rural households entering the treatment group. In order to
obtain the propensity score value, this paper adopts the logit model estimation
method of Dehejia and Wahba (2002):
In formula (3), is the control variable that may affect the
family's entry into the treatment group, and is the coefficient of the control variable. The
propensity score can be estimated by the logit model of the above formula.
In addition, referring to the method of Heckman,
Ichimura, & Todd (1997), this paper adopts the average treatment effect
(ATT) of the treatment group to measure the difference between rural households
that have borrowed when they are hit by a health shock and those who assume
that the household does not have borrowed.
4. Empirical Results
4.1. Basic Regression and PSM Results
Table 2 shows
the results of cross-sectional OLS regression, in which model (1) is the result
without adding control variables, model (2) is the result of adding the owner
of household characteristic variables and family characteristic variables, and
model (3) is the result of adding the economic environment variables. The
results show that when rural households face health shocks, borrowing will
significantly reduce household income at the 1% level, significantly reduce
household healthcare expenditure at the 10% level, and significantly reduce the
proportion of household workers at the 1% level. The number of hours worked per
week has also been significantly reduced. After adding control variables,
borrowing significantly reduces household food expenditures but has no
significant impact on education and tourism spending. The possible reason is:
given the condition that the absolute value of rural household income is small,
borrowing is mainly used for treatment, so income and food expenditures are
reduced when facing health shocks. In addition, due to health shocks, they have
to reduce their working hours. There is no significant decrease in education
expenditure, mainly because most families in China regard education as a
significant and necessary expenditure. There is no significant decrease in
tourism expenditure, which may be because rural households have already spent
very little on tourism, which can not be further cut down.
Cross-sectional OLS regression is prone to endogeneity issues, so we used propensity matching score (PSM) estimation to deal with the endogeneity issues. The family characteristic variables and the owner of household characteristic variables affect the family's entry into the treatment group to a certain extent, so we selected the family characteristic variables and the owner of household characteristic variables as matching variables.
Table 3 shows the descriptive statistics of the matching variables. The propensity score can be calculated by using the matching variables and the logit model.
Next, the common support assumption and the balance test are carried out.
Figure 1 and
Figure 2 show the standard deviation and density function plots of the matching variables before and after matching, respectively. It can be seen in
Figure 1 that the standardized deviation is significantly reduced after matching, and in
Figure 2 it can be seen that the two curves before and after matching are close. Therefore, it shows that the matching result is relatively satisfactory.
Propensity score matching (PSM) estimation is then performed.
Table 4 shows the estimated results after using the propensity score matching (PSM) method. The results show that under health shocks, borrowing is significantly negatively correlated to varying degrees with household income, food expenditure, tourism expenditure, health care expenditure, weekly working hours, and the proportion of household workers. There is no significant relationship with education expenditure, which further shows that although the health shock has led to borrowing, the investment in education has not changed significantly.
4.2. Heterogeneity Analysis
Next, we examined the impact of borrowing at different regional levels. We divided the provinces, where the sample households lived, into eastern, central, and western regions. The division is based on the relevant policies and regulations of Western Development.
Table 5 shows that when households face health shocks, they have a greater impact on rural areas in the west, especially at the level of household income. The western region is generally more economically backward than the central and eastern regions, and the social welfare system is not as effective as in other regions. Once a health shock occurs, it is more likely to lead to a decline in family welfare in the western regions.
5. Conclusion
Compared with urban households, rural households have weak resilience and high vulnerability when faced with risks. Health shock is a more common and serious risk among various risks that rural households faced. Using data from the China Household Finance Survey (CHFS) 2019, we examined the impact of borrowing on rural household welfare under health shocks. The results of the study showed that: first, when rural households faced health shocks, the health shocks would have an important impact on household income and food expenditure; second, when households faced health shocks, household health care expenditures would decline significantly, indicating that the borrowing is mainly used for the treatment of specific diseases; thirdly, in the heterogeneity analysis, the impact of borrowing on the western region is stronger than the central and east regions. The possible reason is that compared with the eastern and central regions, the economic development of the western region is relatively lagging behind, and the family faces greater financing constraints.
Therefore, at the policy and practice level, it is recommended to further improve social security policies such as medical insurance to protect rural families to a greater extent, so that rural household welfare can continue to enhance and rural development can be more sustainable. At present, when families face health shocks, they borrow more from traditional social networks, but as the birth rate declines, the population ages, and family sizes shrink, social networks gradually weaken. Households will not be able to fully insure against risks, especially under frequent health shocks in rural areas, for the foreseeable future. Therefore, speeding up the establishment of rural finance, especially drawing on the relatively mature microfinance that has been developed in some developed economies, is of great significance for alleviating the financing constraints of the rural population and improving the welfare of rural families.
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