An Empirical Analysis on the Persistent Effects of Poverty Alleviation Program in China

Using the 2011-2012 county-level panel data, the paper empirically investigates whether counties exited from the poverty alleviation program affect their economic growth. The identification uses the adjustment of lists of national poverty counties initiated by Chinese government in 2011. It shows that the poverty alleviation program leads to large gains in economy growth that are eventually reversed when the counties quit from the program. Besides, the fiscal revenues and expenditures significantly decline when previous national poverty counties are excluded from the lists.


Introduction
Over the past twenty years, China has made great achievements in the process of antipoverty.The poor population reduced from 70 million in 1994 to 26 million in 2010 and the incidence of poverty decreased from 7.6% to 2.8% [1] [2].A large number of studies show that poverty alleviation program plays a great role in poverty alleviation.
The last three poverty alleviation policies not only effectively have improved the income of local residents in the poor counties, but also have narrowed the gaps between poverty areas and developed areas [3].However, it is difficult for poverty counties to give up the designation of national poverty counties and preferential treatment.Some economists warn that such regional targeted programs may become invalid in the long run, especially when the programs end [4] [5].
The paper evaluates the persistent effects of a large-scale poverty alleviation program instituted by the Chinese government in 2001.It is also called the third wave of China's poverty alleviation program.It covers 592 counties and contains over 60% poverty-stricken population in China [6].The targets of the program are also known as national poverty counties.The targeted counties comfort with transfer payments and preferential development policies.
Over the course of its eleven-year operation from 2001 to 2011, the income and consumption of families in the poverty counties increase 6.1% and 9.2% respectively [7].Also, it improves per capita net income of targeted peasants [8].In 2011, Chinese government decides to trim the beneficiaries of the program and start a new (the fourth wave) poverty alleviation program.As a result, 38 counties exited from the poverty alleviation program because their per capita income was beyond the standard of the program.
In the paper, the difference-in-difference approach is applied to evaluate the impacts of withdrawing from the program for the previous national poverty counties.As such, the causal impacts of quitting the program can be gauged by comparing the counties remained in lists of the program after 2011.Besides, the paper also focuses on the impacts to the counties removed from the lists of the poverty alleviation program on fiscal revenues, expenditures, education and health.
The marginal contribution of this paper lies in: The paper figures out that the counties exited from poverty alleviation program in 2011 suffer the slowdown of economic growth.On average, the economic growth of previous national poverty counties deceases 7 percent when they quit.It is a supplement to researches of poverty alleviation program.Also, the study provides scientific guides for the development of povertystricken area.Besides, the paper points out that the fiscal revenues and expenditures of previous national poverty counties fall and their enrollments of secondary school decrease.It is beneficial for central government to draw up policies to improve the fiscal position and education of counties which have exited from the poverty program.

Literature Review
Lots of literatures have pointed out that the poverty alleviation program promotes both income of peasants in countries and economic growth.However, some scholars criticize that the effects of poverty alleviation program lag behind and lapse in the long term [4] [8] [9].Many literatures have evaluated the policy effect of the second wave of program, which is also called "8-7 Plan", instead of the third wave of the program.Park et al. (2002) find that the "8-7 Plan" has increased the per capita net income of national poverty counties 2.28% for the period of 1985-1992 and 0.91% for the period of 1992-1995 [10].Mao et al. (2012) show that during the implementation of poverty alleviation program, local government tend to use finance funds for public services especially for production and construction to alleviating poverty [11].
In previous studies, scholars often describe regional social and economic development by GDP.But its accounting is not comprehensive.Unformal economic activities are neglected and some of government officials exaggerate it for promotion [12].In addition, the connotation doesn't work on measuring impacts on national welfare.Compared with GDP, nighttime light composite data is a better measure of economic de-velopment, and has been widely used recently.Yu et al. (2015) have proved that light data can effectively measure the degree of regional poverty [13].Xu et al. (2015) point out that nighttime light composite data can effectively replace the GDP to measure economic growth [14].Fan et al. (2016) engage to use lighting data caught by satellites to measure the local economic growth [15].
In summary, the poverty alleviation program has great impacts on the national poverty counties.But it is ambiguous that the impacts of the counties exiting from the program on economic and social development.The paper attempts to use 2011 to 2012 county-level panel data and nighttime light composite data to assess impacts of exiting the program to the previous national poverty counties.As a result, it improves our understanding of poverty alleviation programs and provides scientific guides for drawing up policies for the poverty-stricken area.Another main dataset used in this study comes from China regional statistical yearbook, which covers a lot of variables such as, population area, the first industrial output value, the second industrial output value, residents savings, fixed investment and so on.The specification for our difference-in-differences estimation is

Data, Model and Variables
where i and t represent counties and year respectively; it Y is the measure of economic growth in county i at year t represented by the growth rate of nighttime night; it D is the designation of previous poverty counties after 2011, taking a value of 1 if it has exited the poverty program and 0 otherwise; Post11 denotes a post-the third wave poverty alleviation period, taking a value of 1if it is 2012 and 0 otherwise; i γ is the county fixed effect, controlling for all time-invariant differences across counties; t λ is the year fixed effect, controlling for all yearly shocks common to counties, such as business cycles; α represents the intercept and it ε is the error term.To cope with the poten- tial heteroscedasticity and serial autocorrelation, the paper clusters standard errors at the county level.

Empirical Findings
Regression results for the difference-in-differences specification (1) are reported in Table 2.This part starts with a simple difference-in-differences specification that includes only counties and year fixed effects in column 1.The regression coefficient is statistically significant and negative, suggesting that the economic growth of counties which have exited the poverty alleviation program since 2011 fall.Compared with control groups, the economic growth rate of treatment groups reduces 7.4% after they withdraw from the poverty alleviation program.In column 2, some control variables are added in the regression such as growth rate of population, area, the first industrial added value and the second industry added value.Evidently, the results are found to be robust.
One could be concerned that our treatment and control groups could be systematically different ex ante, which may spuriously generates the negative effect of economic growth on counties when they exited from the program.However, as displayed in column (3) and ( 4), compared with counties are treated as national poverty counties in the next poverty alleviation program, counties exited from the program had better performance on economic growth before they were out of the third wave poverty alleviation program.It implies that the regression results of column ( 1) and ( 2) are robust.
In Table 3, the three regression shows that the economic and social development Table 2. Difference-in-differences results for 2011-2012 changes in growth rate of nighttime light.
( Table 3. Difference-in-differences results for 2011-2012 changes in investment, grain yield and deposit.
(  alleviation program, their public revenues and public expenditures significantly decrease.At the same time, the number of students in their junior school also appeared to decline.This is a serious problem.Education plays an important role in overcoming poverty.The reductions of number of the junior school students may suggest that more youths leave their hometown to work instead of learning knowledge.The fact may aggravate the poverty of rural people in those counties and may lead to vicious spiral.In the end, there is a rise in the number of primary school students, but not significantly.

Grain Yield Deposit
And the number of beds in hospitals and clinics also declined, but not significantly.
It demonstrates that counties exited from the poverty program still need transfer payments from the central government so that problems of education and health will not be deteriorated.

Conclusions
The The policy implications of the paper are mainly two aspects.Firstly, the paper confirms that the economic growth of poverty counties falls when they have exited from the poverty alleviation program.Secondly, it finds that the number of junior school students in counties exited from the program decreases.The administration should take it seriously and prevent the vicious cycle of poverty caused by education.

3. 1 .
Data and Model Design Two types of data are used in this study: (1) NPP-VIIRS nighttime light composite data from 2011 to 2012.(2) Socioeconomic statistics from the China regional statistical yearbook.NPP-VIIRS nighttime light data are derived from the DMSP program (the U.S. Air Force defense meteorological satellite program).The light data obtained from satellite sensors.The data are collected and published by the National Geographic Data Center (NGDC).
The main datasets are separated.The article uses the 2007 administrative codes to integrate them into the database.The 2007 administrative codes are the latest version of the national standard administrative codes for counties' identification (national standard GBT 2260-2007).In order to alleviate the pushing of price changes, nominal values in China regional statistical yearbook are divided by provincial CPI from "China Statistical Yearbook".The validity of our difference-in-differences estimation hinges on the assumption: the treatment group would have followed the same trend as the control group in the case without the adjustment of recipients of the poverty alleviation program.So the samples are defines as counties participated in the third wave national poverty alleviation program from 2001 to 2011.The identification uses the adjustment of lists of national poverty counties initiated in 2011.Those counties which have exited the poverty alleviation program are treated as treatment group.Those counties remained as national poverty counties after the adjustment are regard as controls groups.
Most of labors in poverty-stricken counties are peasants.Their main income comes from the agriculture.Through the grain production, the paper studies the changes of agriculture in the counties which have exited the program since 2011.Besides, fixed investments make big contributions to the economic growth in China.Enterprises in the counties which have exited the program since 2011 may transfer to other areas because they have lost preferential policies as national poverty counties.Finally, the savings of local residents are used to confirm the assumption that the income of peasants in the counties exited from the program fall.The fiscal situation of poverty counties is closely related to the transfer payments.The transfer payment reductions in counties exited from the program are likely to affect their fiscal operation.In addition, their development of education and health may be impacted by the decrease of fiscal subsidies and economic growth.So the paper uses fiscal revenue and expenditure to analysis the fiscal situation of pre-poverty counties and uses the number of primary school, junior school students and beds in the hospital to study their development of education and health.
existing researches show that the poverty alleviation program has played an important role in increasing the income of the poor and narrowing the gap between the poor and the developed regions.The paper concentrates on the persistent effects of poverty alleviation program.Overcoming poverty is a continuous process.If the development of poverty counties relies on the transfer payments and extrinsic aids, ultimately they are likely to fall into the trap of poverty in the future.As a result, the effect of poverty alleviation program will be greatly reduced.The analysis on economic growth of poverty counties which have exited from the poverty alleviation program since 2011 helps us identify both the persistent effects of poverty alleviation program and development validity of poverty counties after they quit it.The paper collects from 2011 to 2012 county-level panel data, using difference in difference method to recognize the impacts of quitting the poverty alleviation program for counties on economic growth, fiscal status and education.The conclusions are as fol-lows: 1) Economic growth rate of previous poverty counties dropped 7 percentage points.2) Local fixed investment and savings in the counties exited from the program significantly decrease, which confirms that the economic growth of the counties declines.It means that the counties which have exited from the program still need transfer payment to assure the growth of economic.3) The fiscal status of poverty counties deteriorates when they have exited from the poverty alleviation program.Besides, the number of students in junior school falls in the previous national poverty counties.

Table 1
describes the economic and social statistics data of poverty counties of the third wave poverty alleviation program, which are defined as examples in the paper.In

Table 1 ,
Light growth and pop growth mean the growth rate of nighttime light and population The implications of remain variables are as follows. 1 st GDP and 2 nd GDP stand for the log of value-added of primary industry and secondary industry.Investment, grain yield and deposit in Table1are on the behalf of the log of investment in fixed assets, total grain yield and balance of savings deposit of households.Revenue and expenditure are abbreviations of the log of public budgetary revenue and public budgetary expenditure respectively.Junior schools, primary schools and beds of hospitals denote
logarithms of enrollment of secondary schools and primary schools and number of beds of hospitals and health centers respectively.

Table 4
reports the operation of public finance and the supplies of public goods in counties which have quitted from the program since 2011.After they quit from poverty

Table 4 .
Difference-in-differences results for 2011-2012 changes in fiscal position, education and health.