land tenure investment incentives and the choice of techniques evidence from nicaragua the choice of cultivation techniques is a key determinant of agricultural productivity and has important consequences for income growth and poverty reduction in developing countries household data from nicaragua are used to show that the choice of cultivation technique depends on farmers tenure status even when techniques are observable and contractible in particular tree crops are less likely to be grown on rented than on owner cultivated plots further evidence indicates that the result follows from landlords inability or unwillingness to commit to long term tenancy contracts rather than from agency costs due to risk aversion or limited liability

specific experience household structure and intergenerational transfers farm family land and labor arrangements in developing countries data from indian rural household survey was used to test th hypothesis that the coexistence in traditional rural societies of extended intergenerational families infrequent land sales and high reliance on family members as farm laborers is the result of the economic advantages which accrue from the knowledge gained by farming a particular ploy of land over a long period of time the land specific experience of elderly members of a intergenerational household who farmed the land as a child and then as an adult are expecially critical in adverse weather years most previous investigators attributed the existence of multigenerational households the use of family members rather than hired laboreds and the infrequency of land sales to deficiencies in the market i e labor market imperfections and an absence of capital insurance and asset markets in the present investigations these same characteristics are viewed as having an economic advantages a model for estimating the contribution of the experience of the elderly household members to agricultural profits was developed and applied to data from a 3 year panel study of 2900 indian rural farm households the data was collected between 1968 71 by the national council of applied economic research the survey collected information on farm profits farm inputs demographic characteristics and the effects of weather conditions on profits a major limitation of the study was a lack of information on the duration of land ownership age of household members was substituted as a proxy for duration of ownership findings were consistent withe the hypothesis in poor agricultural years gross returns for households which contained an elderly household member were greater than the gross returns for comparable households which did not contain an elderly member the economic advantages of specific knowledge embodied in the experienced elderly farmer were comparable to the economic advantages which accrued to households whose members were more educated the hypothesis cannot fully explain the existence of intergenerational families since there is a relatively large proportion of such families among nonfarm families in many countries including india findings suggest that intergenerational families may provide for more occupational diversity and thereby reduce income risks the specific experience hypothesis has policy implications if technological changes are introduced the value of specific experience may be lost and the frequency of intergenerational households may decline the hypothesis may also explain why farmers are reluctant to agree to land redistribution and consolidation schemes this reluctance may disappear after sufficient technological change has occurred

migrant labor markets and the welfare of rural households in the developing world evidence from china in this paper the authors examine the impact of reductions in barriers to migration on the consumption of rural households in china the authors find that increased migration from rural villages leads to significant increases in consumption per capita and that this effect is stronger for poorer households within villages household income per capita and non durable consumption per capita both increase with out migration and increase more for poorer households the authors also establish a causal relationship between increased out migration and investment in housing and durable goods assets and these effects are also stronger for poorer households the authors do not find robust evidence however to support a connection between increased migration and investment in productive activity instead increased migration is associated with two significant changes for poorer households increases both in the total labor supplied to productive activities and in the land per capita managed by the household in examining the effect of migration we pay considerable attention to developing and examining our identification strategy

consumption smoothing and the welfare consequences of social insurance in developing economies studies of risk in developing economies have focused on consumption fluctuations as a measure of the value of insurance a common view in the literature is that the welfare costs of risk and benefits of social insurance are small if income shocks do not cause large consumption fluctuations we present a simple model showing that this conclusion is incorrect if the consumption path is smooth because individuals are highly risk averse hence social safety nets could be valuable in low income economies even when consumption is not very sensitive to shocks

child fostering in africa when labor and schooling motives may coexist abstract the paper proposes a theoretical framework for understanding purposive child fostering in africa whereby a non orphaned child is sent to live temporarily with relatives in the model adults decide whether to foster in or out a child in conjunction with other household choices e g own time allocation between market and non market activities children s amount of work and schooling by allowing for positive externalities from fostering and thus asymmetric motives for fostering in labor and out human capital the proposed framework predicts that school age children are sent to better off households and that some families may foster in and out simultaneously the model identifies the conditions under which all actors involved children included may benefit from fostering arrangements but also points to situations where fostering may become an opportunity to marginalize a subset of children the paper aims to provide a sound theoretical foundation that sheds light on why there exists mixed empirical evidence on the effects of fostering on children s well being and cautions against demonizing non parent residence as unequivocally detrimental to children

land tenure arrangements and rural urban migration in china summary obstacles to internal migration in china contribute to inefficiency inequality and land degradation academic and policy debate has primarily focused on discrimination against rural migrants on arrival in urban areas meanwhile barriers to migration out of rural areas have received less attention this paper examines the role of incomplete rural property rights in the migration decisions of rural households we examine the relationship between tenure insecurity and restrictions on land rentals and participation in outside labor markets the results indicate that tenure insecurity reduces migration this relationship is particularly pronounced on forest land which has implications for the conservation of recently replanted forest areas

statistical analysis and combination forecasting of environmental efficiency and its influential factors since china entered the wto 2002 2010 2012 abstract since china became a member of world trade organization wto its economy develops at a fast speed at the same time the environmental problem becomes more and more serious and increasingly affects economic development studying the factors that influence environmental efficiency has become an essential point in dealing with the relationship between economy and environment considering the differences in space and economic development among different districts this paper discusses the quantitative relationship among exports figure imports figure gdp per capita industrialization level fiscal decentralization and environmental efficiency of each chinese province by using statistical analysis furthermore this paper discusses differences among each district s influential factors from the perspective of spatial economics and makes combination forecast on the trend of environmental efficiency it also shows that the environmental efficiency of chinese provinces is generally at a low level in addition as the economic statuses of different provinces vary and the factors that influence environmental efficiency in different provinces also have significant differences each province should take certain measures to design the environmental protection policy in line with its local circumstance

migrants and housing investments theory and evidence from nigeria the dominance of housing may reflect limitations in the menu of investment choices available to migrants in the country of origin in many developing countries individuals face relatively few savings opportunities where productive assets such as land farm assets are associated with high risks and or low rates of return housing investments offer unique advantages in that they are durable highly visible and associated with low risk and monitoring requirements however there are some important drawbacks associated with housing investments in particular where resale and rental markets for housing are not well developed migrants housing assets may be relatively illiquid and irreversible in the next section i provide some background on general patterns of investment behavior among migrants here the evidence on housing investments is discussed for a rich set of migrant sending and receiving countries in section iii i develop the conceptual framework for understanding migrants housing investment decisions section iv provides a description of the data sources section v outlines the empirical strategy in section vi i discuss the empirical findings section vii presents conclusions excerpt

remittances and household wealth after conflict a case study on urban burundi few studies have researched the use of remittances in conflict affected contexts this study analyzes unique data from burundi testing three hypotheses relative deprivation investment and insurance derived from new economics of labor migration studies employing propensity score matching results show that remittances are common among wealthier households rejecting the relative deprivation hypothesis remittances have strong effects on non productive assets such as living conditions and food security and weak effects on productive assets such as asset ownership poorer households invest mostly in non productive assets suggesting that remittances are insurance for the poor whereas wealthier households seem largely unaffected by remittances

parental human capital investment and old age transfers from children is it a loan contract or reciprocity for indonesian families abstract this paper proposes two alternative models of intergenerational transfers linking parental investment in human capital of children to old age support the first model formulates these transfers as a pure loan contract and the second model as self enforcing reciprocity both models predict neutrality of intergenerational redistribution of resources within the family also known as the difference in income transfer derivatives property two models however provide different reasons for the failure of this property and yield different policy implications for parental human capital investment and provision of old age support specification tests on the indonesian family life survey data reject the pure loan model in favor of the reciprocity model the estimated difference in income transfer derivatives for this data is found to be significantly higher than the difference estimated by altonji hayashi and kotlikoff altonji et al 1992 altonji j g hayashi f and kotlikoff l j 1992 is the extended family altruistically linked direct tests using micro data the american economic review vol 82 5 1177 98 for the u s psid data

vulnerability of victims of civil conflicts empirical evidence for the displaced population in colombia summary internal conflicts and the forced displacement often caused by such conflicts impose a heavy burden on the civilian population and greatly damage a community s overall welfare the present study employs a household level survey administered to 2 322 colombian displaced households to estimate changes in household welfare after displacement and to assess aggregate consumption levels in destination sites we also assess whether households are able to smooth consumption and we analyze the strategies they are compelled to adopt in order to cope our results indicate that victims of civil conflict face difficulties in generating income are unable to rely on usual risk sharing mechanisms and are forced to draw upon costly coping strategies in order to smooth consumption the vulnerability of displaced households and the possibility of falling into poverty traps highlight the need to design and implement specific policies for victims of internal conflict in order to cope with the displacement shock

does environmental regulation affect energy efficiency in china s thermal power generation empirical evidence from a slacks based dea model abstract data envelopment analysis dea has gained much popularity in performance measurement of power industry this paper presents a slack based measure approach to investigating the relationship between fossil fuel consumption and the environmental regulation of china s thermal power generation we first calculate the total factor energy efficiency without considering environmental constraints an environmental performance indicator is proposed through decomposing the total factor energy efficiency the proposed approach is then employed to examine whether environmental regulation affects the energy efficiency of china s thermal power generation we find that the environmental efficiency plays a significant role in affecting energy performance of china s thermal generation sector decreasing the discharge of major pollutants can improve both energy performance and environmental efficiency besides we also have three main findings 1 the energy efficiency and environmental efficiency were relatively low 2 the energy and environmental efficiency scores show great variations among provinces 3 both energy efficiency and environmental efficiency are of obvious geographical characteristics according to our findings we suggest some policy implications

china s uneven progress against poverty while the incidence of extreme poverty in china fell dramatically over 1980 2001 progress was uneven over time and across provinces rural areas accounted for the bulk of the gains to the poor though migration to urban areas helped the pattern of growth mattered rural economic growth was far more important to national poverty reduction than urban economic growth agriculture played a far more important role than the secondary or tertiary sources of gross domestic product gdp rising inequality within the rural sector greatly slowed poverty reduction provinces starting with relatively high inequality saw slower progress against poverty due both to lower growth and a lower growth elasticity of poverty reduction taxation of farmers and inflation hurt the poor external trade had little short term impact

precautionary behavior migrant networks and household consumption decisions an empirical analysis using household panel data from rural china abstract we develop a test of precautionary behavior in the consumption decisions of rural agricultural households among surveyed households facing a median level of consumption risk 10 of savings can be attributed to a precautionary motive and this increases to 15 for households with consumption per capita below the poverty line we next use distant lags of local rainfall shocks uncorrelated with current consumption growth to identify the size of migrant networks outside the village and then present evidence that both poor and nonpoor households engage in less precautionary saving as the size of the village migrant network increases

who gets the job referral evidence from a social networks experiment we use recruitment into a laboratory experiment in kolkata india to analyze how job networks select individuals for employment opportunities we present evidence that individuals face a tradeoff between choosing the most qualified individual for the job and the individual who is ideal from the perspective of their social network the experiment allows randomly selected subjects to refer members of their social networks to subsequent rounds of the experiment and varies the incentive schemes offered to these participants we find that when faced with performance pay individuals are more likely to refer co workers and less likely to refer family members high ability participants who are offered performance pay recruit referrals who perform significantly better on a cognitive ability task and also prove to be more reliable as evidenced by their choices in the trust game and performance on an effort task

dimensions and diversity of property rights in rural china dilemmas on the road to further reform abstract this paper contributes to the debate over land tenure in rural china by conceptualizing and measuring multiple dimensions of property rights in a way that elucidates the competing interests that are affected by the property rights regime utilizing a unique village level data set this paper argues that the regional and temporal variation in rural property rights signals a pattern in which decentralized institutional innovation occurs in response to the competing interests of the national state of local authorities and of present and possible future individual land users unlike the earlier debate concerning the household responsibility system the current property rights dilemma is intrinsically more complex because the potential conflicts of interest between individuals local collectives and the state are greater resolution of that debate will ultimately require careful exploration of the reality and substance of the tradeoffs and competing interests that make further reform of rural property rights so difficult

the crowding out effect of formal insurance on informal risk sharing an experimental study abstract this paper investigates the crowding out effect of formal insurance on informal risk sharing arrangements via theory and laboratory experiment our model and simulation predict that the crowding out of private transfers is often more than one for one and will reduce the total risk coverage furthermore the existence of a moderate degree of altruism exaggerates the crowding out effect especially when there is an ex ante income inequality these predictions are mostly supported by the laboratory experiment except that the crowding out effect is not more than one for one and hence the total risk coverage is not significantly reduced by formal insurance

the evolution of income inequality in rural china abstract in this article we analyze trends in income inequality and the distribution of income in rural china from 1987 to 1999 we find an uneven but long run increase in inequality in rural china and show that nearly half of the rural population was not much better off in 1999 than at the start of the period we rule out geography as the most important factor for explaining income differences and the increases that occurred over time much more important were growing differences between households living in the same village province or region we also find that access to nonagricultural incomes from local wage employment and family businesses contributes to inequality but that employment outside the county in which a household lives and accessed through temporary migration is relatively equalizing finally we document important strengths and weaknesses of the primary data set used for our analyses relative to other data sources available for study of inequality and poverty in rural china

storm damage and risk preferences panel evidence from germany individuals risk preferences may change after experiencing external socio economic or natural shocks theoretical predictions and empirical studies suggest that risk taking may increase or decrease after experiencing shocks so far the empirical evidence is sparse especially when it comes to developed countries we contribute to this literature by investigating whether experiencing financial and health related damage caused by storms affects risk preferences of individuals in germany using unique panel data we find that household heads were more risk seeking after they experienced storm damage we do not find evidence of exposure to storm per se regardless of damage experience which suggests that household heads have to suffer damage for their risk preferences to be affected these results are robust across a battery of alternative model specifications and alternative storm damage measures magnitude of financial damage we rule out other potential explanations such as health related and economic shocks the self reported storm damage data is broadly confirmed by regional storm damage data provided by the insurance industry while we cannot identify the channels through which experiencing storm damage affects risk preferences from our data we suggest and discuss some potential channels the results may have important policy implications as risk preferences affect for instance individuals savings and investment behaviour adoption of self protection and self insurance strategies and technology adoption

assortative matching and risk sharing abstract this paper explores the sorting patterns in a two sided matching market where agents facing different risks match to share them when preference belongs to the class of harmonic absolute risk aversion hara the risk premium is perfectly transferable within each partnership thus a stable match minimizes the social cost of risk in the systematic risk model where agents are ranked by their holdings of a common risky asset the convexity of the joint risk premium in joint risk size leads to negative assortative matching nam in the idiosyncratic risk model where agents are ranked by their independent riskiness in the sense of second order stochastic dominance ssd nam arises when preference exhibits decreasing absolute risk aversion dara in the sense of ross and riskier background risk leads to more risk averse behavior however nam may fail to arise when riskier background risk leads to more risk tolerant behavior

how migration restrictions limit agglomeration and productivity in china china strongly restricts rural urban migration resulting in a well acknowledged surplus of labor in agriculture but migration is also restricted within sectors this paper argues that these intra sector restrictions lead to insufficient agglomeration of economic activity in both the rural industrial and urban sectors with resulting first order losses in gdp for urban areas the paper estimates a city productivity relationship based on city gdp numbers the effects of access educational attainment fdi and public infrastructure on productivity are estimated given these worker productivity is shown to be an inverted u shape function of city employment with the peak point shifting out as industrial composition moves from manufacturing to services as predicted by urban theory as far as we know this is the first paper to actually estimate the relationship between output per worker and city scale for any country the majority of chinese cities are shown to be potentially undersized below the lower bound on the 95 confidence interval about the size where their output per worker peaks the paper calculates the large gains from increased agglomeration in both the rural industrial and urban sectors

periodic high risk as a cause of fertility decline in a changing rural environment survival strategies in the 1980 1983 south indian drought in the attempt to explain persistent high fertility in much of the third world attention has been drawn both to current returns from child labor and to the mitigation or avoidance of future risks the latter can be subdivided into meeting emergencies while the parental generation is still of working age and providing for old age or even safeguarding the transmission of family property on parental death the problems of old age have recently received most attention and they may well be of paramount importance in many societies yet in a research program that we have conducted in rural south india since 1979 the reasons given for demographic behavior have more frequently emphasized the need to plan strategies to meet periodic crisis than to ensure old age support 2 nevertheless one should not underemphasize the latter merely because the problem is predictable and the solutions understood in the study area for the great majority of the aged the support system still worked well 3 in contrast in our investigations of marriage fertility control and education we repeatedly discovered that a fundamental consideration with regard to parental decisions in these areas was to strengthen the ability of the family to withstand periodic crises 4 by far the most important type of crisis in this dry drought prone area was recurrent famines resulting

is public r d a complement or substitute for private r d a review of the econometric evidence is public r d spending complementary and thus additional to private r d spending or does it substitute for and tend to crowd out private r d conflicting answers are given to this question we survey the body of available econometric evidence accumulated over the past 35 years a framework for analysis of the problem is developed to help organize and summarize the findings of econometric studies based on time series and cross section data from various levels of aggregation laboratory firm industry country the findings overall are ambivalent and the existing literature as a whole is subject to the criticism that the nature of the experiment s that the investigators envisage is not adequately specified we conclude by offering suggestions for improving future empirical research on this issue

on the economics of nonmarket transfers the role of altruism abstract we examine altruistically motivated consumption transfers in an effort to account for nonmarket transfers we find that altruistic linkages lead to autonomous negotiation free transfers and that such transfers positively respond to stronger altruism we also find that given fairly natural assumptions concerning the altruism parameters mutual altruism does not necessarily result in group social harmony even though its rise narrows the conflict range in spite of enhanced transfers prompted by such a rise both parties may end up worse off these results help explain why in some social environments a shift toward market oriented transfers and exchanges may be quicker than in others as the disadvantages decline in utility associated with intragroup altruistic linkages outweigh the advantages

extended families and child well being studies of household behavior have established the distribution of resources among household members predicts spending and savings patterns however there is a paucity of evidence on the relationship between the well being of individual family members and the distribution of resources within an extended family including non co resident family members given the central role the family plays in many models of economic behavior this is an important gap in the literature using rich longitudinal survey data from the indonesia family life survey ifls evidence is presented on the relationship between three measures of health and education related human capital of children and the distribution of resources among extended family members ifls is ideally suited for this research since the survey collects detailed information about income and wealth from both coresident and non co resident family members the empirical model is founded on a natural extension of the collective model of household decision making chiappori 1988 1992 to the extended family the model is particularly appealing in this context because it places few restrictions on preferences of individual family members and does not specify a specific bargaining mechanism that underlies negotiations the collective model yields empirical tests of whether the behavior of family members is pareto efficient a special case of the model allows all family members to be completely altruistic which is observationally equivalent to a unitary model of family behavior that special case is rejected by the data however the restrictions of the efficient model are not rejected indicating that non co resident family members are able to co ordinate allocation decisions with respect to child human capital investments in such a way as to make no family member better off without another member being worse off

motivations to remit evidence from botswana in this article a theory of motivations to send remittances is described and tested with data from botswana altruism is one of the motivations tested and found to be an insufficient explanation for remittances among migrants in botswana a refinement of the model stipulates a modified altruism or enlightened self interest in this model the relationship between the migrant and family is tempered by an implicit understanding of mutual benefit the household strategy may be to encourage some members to migrate as a means of spreading risk and sharing gains the household strategy is similar to an insurance policy where migration is to places where market potential is high the risks incurred might be high the example is given of migration during a drought in botswana migrant remittances were greater in households with more cattle or households with more to lose drought alone was not statistically related to remittances increases in remittances were related to increased levels of education it is suggested that repayment was the motive for parents investment in migrants education migrants gains are identified as the potential for an inheritance the security of channeling investments through a trusted family member and security in having a home to return to it is pointed out that the altruism and family remittances from urban migration were strategies that bridged the simple dynamic of either urban development or rural development impacting on family welfare it is suggested that household models of economy adopt some measure to express the relationship of household wealth to remittances from urban migrants

no toilet no bride intrahousehold bargaining in male skewed marriage markets in india abstract haryana state in india is characterized by widespread discrimination against women including a severe population level sex imbalance in this context an innovative social marketing campaign which targeted pro sanitation messages to households active in local marriage markets was implemented with the goal of increasing toilet ownership this paper estimates the impact of this program known colloquially as no toilet no bride on household level latrine ownership private sanitation coverage in haryana increased by 21 specifically among households with boys active on the marriage market this effect is larger and concentrated in marriage markets where women are relatively scarce and absent when women are relatively abundant which together suggest the program operated by successfully linking sanitation outcomes with marriage market competition induced by local scarcities of women due to male biased sex ratios

local governance and public goods provision in rural china in developing countries identifying the most effective community level governance mode is a key issue in rural development therefore empirical evaluation of these different modes is desperately needed since the 1980s tens of thousands of villages in rural china have held local government elections providing a good opportunity to investigate the effect of democratization on the level of public goods provision using a recent village survey conducted over a significant period of time this article compares two different governance modes it finds that elections affect little on the size of revenue but significantly shift the distribution of taxation from individuals to enterprises if possible however privatization has made taxation or levies on rural enterprises more difficult it also shows that elections and power sharing are conducive to improve the allocation of public expenditures

testing efficient risk sharing with heterogeneous risk preferences previous papers have tested e cient risk sharing under the assumption of identical risk preferences in this paper we show that if in the data households have heterogeneous risk preferences the tests proposed in the past reject e ciency even if households share risk e ciently to address this issue we propose a method that enables one to test e ciency even when households have difierent preferences for risk the method is composed of three tests the flrst one can be used to determine whether in the data under investigation households have homogeneous risk preferences the second and third test can be used to evaluate e cient risk sharing when the hypothesis of homogeneous risk preferences is rejected we use this method to test e cient risk sharing in rural india using the flrst test we strongly reject the hypothesis of identical risk preferences we then test e ciency with and without the assumption of preference homogeneity in the flrst case we reject e cient risk sharing at the village and caste level in the second case we still reject e ciency at the village level but we cannot reject this hypothesis at the caste level this flnding suggests that the relevant risk sharing unit in rural india is the caste and not the village

income smoothing and consumption smoothing one way that risk averse households protect consumption levels is to borrow and use insurance mechanisms another way common in low income economies is to diversify economic activities and make conservative production and employment choices households thus tend toward limiting exposure only to shocks that can be handled with available credit and insurance typically both types of mechanisms are studied independently but much more can be learned by studying them together first we obtain a more complete picture of risks costs and insurance possibilities second it opens the way to considering biases in standard tests of credit and insurance

land transfer in rural china incentives influencing factors and income effects land transfer incentives and their effect on farmers income in developing countries have been widely examined in the literate but little is known about the driving mechanism of rural household in

fertilizer use risk and off farm labor markets in the semi arid tropics of india a two period model is developed in which a risk averse farmer uses off farm labor to smooth consumption leading to greater use of fertilizer fertilizer demand is shown to increase with the depth of the off farm labor market controlling for exogenous weather risk farmers use more fertilizer the lower the unemployment rate and the higher the share of nonagricultural work in total off farm labor the results suggest that off farm labor markets and own farm production may be complementary in risky production environments so that policies which promote the depth of the off farm labor market in low income areas may also bolster farm productivity copyright 2003 oxford university press

moving forward looking back the impact of migration and remittances on assets consumption and credit constraints in the rural philippines abstract this paper investigates the impact of migration and remittances on asset holdings consumption expenditures and credit constraint status of households in origin communities using a unique longitudinal data set from bukidnon philippines taking into account the endogeneity of the number of migrants and remittances received a larger number of migrant children reduces the values of nonland assets and total expenditures per adult equivalent however remittances have a positive impact on housing consumer durables nonland assets total expenditures per adult equivalent and educational expenditures enabling asset accumulation and investment in human capital neither migration nor remittances affects current credit constraint status

did china s regional transport industry enjoy better carbon productivity under regulations despite rapid economic development the transport industry has been claimed to account for a major part of climate change this paper investigates total factor carbon sensitive productivity growth in the regional transport sector in china and decomposes its dynamic changes over time taking account of the regional heterogeneity of different provinces thus the contemporaneous metafrontier malmquist luenberger approach that combined with non radial directional distance functions is proposed and define a new indicator called the contemporaneous metafrontier malmquist luenberger carbon emission performance index cmml this total factor indicator includes the metafrontier efficiency change index mec the metafrontier technology change index mtc and the metafrontier technology gap change index tgc results show an about 4 increase in overall total factor carbon emission productivity during the period of 2000 2012 different growth patterns are also observed in the transport sector across different area of china in the eastern region the growth of carbon productivity is driven mainly by pure efficiency changes whereas the central region is driven mainly by innovations in the low carbon transport technology

the profits of power land rights and agricultural investment in ghana we examine the impact of ambiguous and contested land rights on investment and productivity in agriculture in akwapim ghana we show that individuals who hold powerful positions in a local political hierarchy have more secure tenure rights and that as a consequence they invest more in land fertility and have substantially higher output the intensity of investments on different plots cultivated by a given individual corresponds to that individual s security of tenure over those specific plots and in turn to the individual s position in the political hierarchy relevant to those specific plots

property rights labour markets and efficiency in a transition economy the case of rural china we investigate the consequences of imperfect factor market development for farm efficiency in north china we estimate the extent to which an inverse relationship in farm productivity can be attributed to the administrative as opposed to market allocation of land combined with unevenly developed off farm opportunities using a new household survey we find considerable inefficiency in the use of labour this inefficiency is alleviated by external labour markets and to a limited degree by administrative reallocations the reallocations do not go far enough however which raises important questions about con straints on rental activity and property rights formation more generally jel classification q15 012

consumption smoothing migration and marriage evidence from rural india a significant proportion of migration in low income countries particularly in rural areas is composed of moves by women for the purpose of marriage we seek to explain these mobility patterns by examining marital arrangements among indian households in particular we hypothesize that the marriage of daughters to locationally distant dispersed yet kinship related households is a manifestation of implicit interhousehold contractual arrangements aimed at mitigating income risks and facilitating consumption smoothing in an environment characterized by information costs and spatially covariant risks analysis of longitudinal south indian village data lends support to the hypothesis marriage cum migration contributes significantly to a reduction in the variability of household food consumption farm households afflicted with more variable profits tend to engage in longer distance marriage cum migration the hypothesized and observed marriage cum migration patterns are in dissonance with standard models of marriage or migration that are concerned primarily with search costs and static income gains

migration networks and microenterprises in mexico are migration networks associated with lower capital costs or the alleviation of capital constraints we examine these questions with data measuring access to remittance flows among small scale entrepreneurs in mexico using a survey of more than 6000 self employed workers and small firm owners located in 44 urban areas of mexico we estimate the impact of attachment to migration networks on the level of capital investment the capital output ratio sales and profits of microenterprises the impact is identified from the geographic pattern of migration from mexico driven by the completion of rail lines in the early 1900s for the full sample of firms we find that migration is associated with higher investment levels and higher profits but not higher sales the strongest effects on investment are in the categories of automobiles tools and inventories when the sample is limited to firms in high capital sectors investment sales and profits all increase with attachment to the migration networks suggesting that attachment to the migration network alleviates capital constraints in those sectors

productivity and financial support in academic bioscience despite widespread awareness that scientific record and grant funding reinforce one another empirical models of scientific production normally consider laboratory inputs to be exogenous the present article employs a cross section of academic bioscientists to examine the mutual relationship between research output and financial support information s nonrival character is such that scientific output and funding success cannot be expressed in strictly supply and demand terms we find the typical bioscience laboratory to operate in a range of decreasing returns to scale and to over invest in laboratory equipment and materials publication and funding success strongly reinforce one another explaining the right skewed success distributions often observed in science

wealth weather risk and the composition and profitability of agricultural investments despite the growing evidence that farmers in low income environments are risk averse there has been little empirical evidence on the importance of risk in shaping the actual allocation of production resources among farmers differentiated by wealth the authors use panel data on investments in rural india to examine how the composition of productive and nonproductive asset holdings varies across farmers with different levels of total wealth and across farmers facing different degrees of weather risk income variability is a prominent feature of the experience of rural agents in low income countries the authors report evidence based on measures of rainfall variability that the agricultural investment portfolio behavior of farmers in such settings reflects risk aversion due evidently to limitations on consumption soothing mechanisms such as crop insurance or credit markets the authors results suggest that uninsured weather risk is a significant cause of lower efficiency and lower average incomes a one standard deviation decrease in weather risk measured by the standard deviation of the timing of the rainy season would raise average profits by up to 35 percent among farmers in the lowest wealth quartile moreover rainfall variability induces a more unequal distribution of average incomes for a given distribution of wealth wealthier farmers are willing to absorb significant risk without giving up profits to reduce production risk smaller farmers have to invest their limited wealth in ways that reduce their exposure to risk at the cost of lower profit rates the authors found that at high levels of rainfall variability differences in rates of profit per unit of agricultural assets were similar across classes of wealth but over the sample range of rainfall variability these rates of profit were always higher for the poorer farmers than for the wealthier ones suggesting that the disadvantages of small farmers in risk diffusion are more than offset by their labor cost advantage

wage and employment effects of malawi s fertilizer subsidy program this article uses three waves of nationally representative household level panel data from malawi to estimate how a large scale fertilizer subsidy program impacts the agricultural labor market known as ganyu in that country i find that when looking across the entire population of smallholders receiving an additional 100 kg of subsidized fertilizer causes the average household to supply about three fewer days of ganyu the fertilizer subsidy program also has a small positive effect on the probability that a household demands agricultural labor with the results approaching statistical significance in addition a 10 kg increase in the average amount of subsidized fertilizer acquired per household in a community boosts the median agricultural wage rate by 1 4 in that community the increase in wage rates translates to a us 1 40 per year increase in average household income in the years after malawi s subsidy program was scaled up and a us 1 86 per year increase in average household income for those who sold their labor before the subsidy program was scaled up this finding suggests that households who sell their labor off farm may experience some small spillover benefit from the program in the form of higher agricultural wage rates

land tenure and property rights theory and implications for development policy this article explores the nature of property rights systems their evolution and their effect on resource allocation it is argued that certain institutional arrangements for land rights have evolved in order to reduce uncertainty and increase efficiency in credit as well as in land markets of particular relevance to developing countries the article emphasizes the contribution of public sector infrastructure to effective land rights systems an appendix to the article presents a formal model analyzing the effects of security of land rights on land prices the intensity of cultivation and the use of credit empirical evidence from thailand supports several of the propositions derived from the model

do private transfers displace the benefits of public transfers evidence from south africa abstract this paper investigates whether government transfer programs displace or crowd out private support focusing on a large increase in state old age pensions in south africa using data spanning the period of the expansion we find that each rand of public pension income to the elderly leads to a 0 25 0 30 rand reduction in private transfers from children living away from home however despite the large increase in income there were no significant changes in migration labor supply or household composition we also show that evaluations of the distributional effects of the pension are overstated when crowding out is ignored

the private r d investment response to federal design and technical competitions it is the federal government s role to promote investment in research and development rd and 2 contracting with private firms and nonprofit organizations such as universities to perform rd the winning firm recovered its development costs in the form of profits on the sale of the airplanes and the losing firms did not recoup their r d investment mansfield 1971 p 122

risk sharing across communities this paper studies cross community risk sharing there is now a large body of theoretical and empirical work on informal insurance where people mitigate risk by sharing income a consistent empirical finding is that risk sharing is not complete within villages often the observed sets of individuals 2 one reason researchers suspect is that risk sharing does not take place at the village level but between individuals and families 3 we build a theoretical model where risksharing takes place between pairs of agents there are idiosyncratic shocks to individual income and community level shocks we consider how the opportunity for cross community links affects the shape and efficiency of risk sharing arrangements we find that when links across villages form there can be less risk sharing within a village welfare is higher for those directly or indirectly connected across villages but lower for those with no path connecting them to the other village overall welfare can be higher thus empirical findings that insurance within a village is not complete is not necessarily evidence of an inefficient pattern of risk sharing relations rather the finding is consistent with risk sharing patterns that involve cross community relations and such patterns may yield higher aggregate welfare despite incomplete insurance within a village this paper makes two contributions first it demonstrates the importance of a network analysis by examining pairwise incentives to form relations and the resulting pattern we can see new risk sharing outcomes second with this network model we show how informal risk sharing across communities has both aggregate and distributional effects to study network outcomes we posit a simple two stage model first we provide a benchmark model for risk sharing for a given network then working backwards we consider incentives to form risk sharing links 4 to illustrate consider a rural population and ask how people might link

determinants and effects of income diversification amongst farm households in burkina faso using four years of household data from three agroecological zones in burkina faso sahelian sudanian and guinean the article examines the determinants and effects of household income diversification harvest shortfalls and terms of trade are found to drive diversification but land constraints do not income diversification is associated with higher incomes and food consumption and more stable income and consumption over years

do elected leaders in a limited democracy have real power evidence from rural china abstract do elected leaders in an authoritarian regime have any real power does grassroots democracy in a one party state entail parochial problems making use of primary survey data covering two election cycles in a mountainous area of china where an administrative village consists of several natural villages nvs we find that elected village heads favor their home nvs in resource allocations especially when these nvs have a large population in contrast the home nvs of appointed communist party secretaries do not receive disproportionately more resources on average this pattern of resource allocation is compatible with the interest of village heads and suggests that as elected leaders village heads have some true power in resource distribution

on the costs of food price fluctuations in low income countries abstract conventional welfare measures of the costs of food price fluctuations in low income countries are extended to allow for both economic growth and food security effects the analysis reveals that growth and food security effects may dominate more conventional welfare costs of food price fluctuations although estimating the empirical magnitude of the effects is hampered by the lack of consensus on the extent to which food price fluctuations actually reduce economic growth and food security even if the welfare costs of food price fluctuations are high there are many challenges to the design and successful implementation of price stabilization schemes

entitled to work urban property rights and labor supply in peru this brief summarizes the results of a gender impact evaluation study entitled entitled to work urban property rights and labor supply in peru new legal rights were issued in 1996 project teams providing titling service through 2003 in peru the study observed that between 1996 and 2003 the peruvian government issued property titles to over 1 2 million urban households the largest titling program targeted at urban squatters in the developing world this paper examines the labor market effects of increases in tenure security resulting from the program pre program squatters in program neighborhoods were significantly more likely to report improved tenure security by 60 percent similarly program participants were 18 8 percentage points less likely to report a high likelihood of eviction or invasion and 18 8 percentage points more likely to report that their dwelling was currently very secure from eviction or invasion the likelihood of working inside the home significantly falls by 11 6 percentage points for the average squatter family with two program periods

the social efficiency of private decisions to enforce property rights costs must be incurred if an owner is to enforce private property rights effectively we show that in a perfectly competitive economy private decisions to enforce rights may result in either more or less enforcement than is socially efficient cases of multiple stable equilibria occur and an equilibrium may be locally but not globally efficient resources may not be employed in their socially most valuable uses and enforcement may be accompanied by inefficient investment in resource productivity

migration risk and liquidity constraints in el salvador abstract this article utilizes panel data from el salvador to investigate the use of transnational migration as an ex post risk management strategy i show that adverse agricultural conditions in el salvador increase both migration to the united states and remittances sent back to el salvador i show that in the absence of any agricultural shocks the probability that a household sent members to the united states would have decreased on average by 24 26 i also show that the 2001 earthquakes reduced net migration to the united states a one standard deviation increase in earthquake damage reduced the average probability of northward migration by 37 11 the evidence suggests that the effects of the earthquakes had more to do with households retaining labor at home to cope with the effects of the disaster than with the earthquakes disrupting migration financing

will you marry me a perspective on the gender gap abstract this paper develops a general equilibrium model of the gender wage gap the difference in earnings is a consequence of a demographic regularity that men tend to marry younger women which may limit women s labor mobility and hence their average earnings however couples are always free not to marry and do so only if it is in each s self interest the intrafamily allocation of resources is determined via non cooperative bargaining this leads to interesting interactions between the game played by husband and wife on the one hand and the competitive environment in which they are immersed on the other the predictions resulting from this model s interplay between locational choice and family bargaining are consistent with the observation that the increasing stress put by women on their careers over the past 30 years has been contemporaneous with reductions in both marriage rates and the gender gap the model provides insight into the consequences of this for the relative welfare of men and women as well as exploring its wider economic implications

credit constraints job mobility and entrepreneurship evidence from a property reform in china this paper provides new evidence on the impact of private property rights on entrepreneurship i explore this issue in the context of a housing reform in urban china that allowed state employees renting state owned housing the opportunity to buy their homes at subsidized prices using the reform as an exogenous change in the capital constraints and mobility costs that inuence individuals entry

land titling and rural transition in vietnam abstract we examine the impact of the 1993 land law of vietnam which gave households the power to exchange transfer lease inherit and mortgage their land use rights we use household surveys before and after the law was passed together with the considerable variation across provinces in the speed of implementation of the reform to identify the impact of the law we find that the additional land rights led to statistically significant increases in the share of total area devoted to long term crops and in labor devoted to nonfarm activities however these changes are not large in magnitude and appear to be driven mainly by the increased security of tenure provided by the law rather than by increased access to credit markets or greater land market participation

remittances and portfolio values an inquiry using immigrants from africa europe and the americas summary using a recent spanish database we show that remittances respond to cross country differences in portfolio values behavior consistent with immigrant s access to trans national networks responsiveness to portfolio variables is found to persist regardless of education level there are however differences in the portfolio variables to which immigrants respond as we would expect given migrants diverse backgrounds region of origin and motive for emigrating remitting patterns are found to change with the length of migration spells suggestive that remittances sent for portfolio motives become more likely as the immediate needs of home family are addressed and asset accumulation becomes more important

land tenure security and investment incentives puzzling evidence from burkina faso abstract the commonsense logic associating higher land security and higher incentives to invest has been recently called into question in the case of african agriculture to be meaningful empirical tests have to be carefully designed so as to take account of the possible endogeneity of the land rights variable this is done in this paper by applying suitable econometric methods to the original data collected in burkina faso the results obtained cast doubt on the existence of a systematic influence of land tenure security on investment by reviewing the justifications for scepticism in the recent literature we are able to conclude that the traditional village order where it exists provides the basic land rights required to stimulate small scale investment

a two season agricultural household model of output and price uncertainty abstract this paper presents a two season model of a household s production consumption labor supply and storage decisions in an environment of output and price risk the analytical results in this study are markedly different from those of models prevalent in the mainstream of the agricultural household literature the empirical analysis that uses panel data from a village in india provides support for the theoretical results and underscores the seasonal dimension of the farmers choice problems the results also show that ignoring risk or risk averse preferences may introduce substantial downward bias in optimal response estimates

sustainability performance for brazilian electricity power industry an assessment integrating social economic and environmental issues the increased pressure on companies to address sustainability issues has resulted in the development of several voluntary corporate sustainability integration approaches the array of existing approaches is large and overwhelming resulting in companies not understanding what corporate sustainability really means for their businesses considering environmental economic and social issues this paper aims at assessing the performance of the brazilian electricity power industry in terms of its sustainability performance an analysis of global reporting initiative gri indicators for the energy sector lead to an assessment of its sustainability performance by applying data envelopment analysis dea specified with a directional distance function ddf five scenarios were created i flexible weights ii triple bottom line iii social issues iv economic issues and v environmental issues with considering i flexibility weights almost all companies are efficient we also found a significant difference when we compared i with the other four scenarios ii iii iv and v taking into account the triple bottom line scenario ii the results indicate that companies were less efficient when compared with the flexible weights scenario i taking into account the last three scenarios iii iv and v only four companies were considered as providing top benchmarks in sustainability performance

does government transparency contribute to improved eco efficiency performance an empirical study of 262 cities in china abstract considering the properties of environment from the perspective of a public good this paper aims to examine the relationship between government transparency and eco efficiency performance eep by applying a conditional slack based measure sbm model local linear regression llr and a nonparametric significance test we conduct an empirical analysis based on 262 cities in china during the period of 2005 2012 the results demonstrated that 1 the overall eco efficiency of china was low due to the fact that the eep scores of most of the cities were below 0 5 2 the eco efficiency performances of a majority of the municipalities sub provincial ms 3 there exists a nonlinear relationship between government transparency and eco efficiency performance in other words if the government information was more transparent it would be more beneficial to the improvement of eco efficiency and the phenomena were more significant in m s cities such as shanghai beijing and guangzhou policy implications are thus drawn in this paper for promoting eco efficiency improvement in china s m s cities and prefecture level cities

migration and economic mobility in tanzania evidence from a tracking survey this study explores the extent to which migration has contributed to improved living standards of individuals in tanzania using longitudinal data on individuals the authors estimate the impact of migration on consumption growth between 1991 and 2004 the analysis addresses concerns about heterogeneity and unobservable factors correlated with both income changes and the decision to migrate the findings show that migration adds 36 percentage points to consumption growth during a period of considerable growth in consumption these results are robust to numerous tests and alternative specifications unpacking the findings the analysis finds that moving out of agriculture is correlated with much higher growth than staying in agriculture although growth is always higher in any sector if one physically moves economic mobility is strongly linked to geographic mobility the puzzle is why more people do not move if returns to geographic mobility are high the evidence is consistent with models in which exit barriers are set by home communities through social and family norms that prevent migration of certain categories of people

networks in economic development this chapter surveys the implications of some studies in network economics research for economic development we focus on information flow and risk sharing two topics where work in theory empirics and policy analysis have been especially intensive and complementary in analysing information we distinguish models of information diffusion and aggregation highlight how different models imply very different guidance regarding the right way to seed information in discussing risk sharing we look at the key frictions that impede efficient informal insurance and some potential unintended consequences when policymakers intervene to help throughout we stress practical insights that can be used with limited measurement of the details of networks

the economics of exogamous marriage in small scale societies marriage is a core institution in almost every human society including small scale societies based on foraging or subsistence agriculture a crucial dimension of the marriage systems in such societies involves endogamy and exogamy that is the choice of a marriage partner from within one s own community or from an outside community we develop a model in which the exogamy rate is higher when good local matches are scarce due to small community sizes and when productivity differs across communities due to environmental shocks these theoretical predictions are supported by econometric analysis of data from the standard cross cultural sample jel d13 j11 n30 z13

village political economy land tenure insecurity and the rural to urban migration decision evidence from china this paper investigates the impact of land tenure insecurity on the migration decisions of china s rural residents a simple model first frames the relationship among these variables and the probability that a reallocation of land will occur in the following year after first demonstrating that a village leader s support for administrative land reallocation carries with it the risk of losing a future election the paper exploits election timing and village heterogeneity in lineage group composition and demographic change to identify the effect of land security in response to an expected land reallocation in the following year the probability that a rural resident migrates out of the county declines by 2 8 percentage points which accounts for 17 5 percent of the annual share of village residents aged 16 to 50 who worked as migrants during the period this finding underscores the potential importance of secure property rights for facilitating labor market integration and the movement of labor out of agriculture

female migration for marriage implications from the land reform in rural tanzania summary using the longitudinal household panel data drawn from rural tanzania 1991 2004 this study investigates impacts of the land reform on women s marriage motivated relocation during the period under study several villages that initially banned a widow s land inheritance abolished this discrimination taking a differences in differences approach this study finds that the probability of males marrying in a village increased by altering its customary land inheritance rule in favor of widows in the light of the traditional system favoring exogamous and patrilocal marriage this finding indicates that females relocate at marriage in response to the favorable land tenure system at the destination

property rights and investment in urban slums this paper examines the effect of changes in tenure security on residential investment in urban squatter neighborhoods to address the endogeneity of property rights i make use of variation in ownership status induced by a nationwide titling program in peru in a difference in difference analysis i compare the change in housing investment before and after the program among participating households to the change in investment among two samples of nonparticipants my results indicate that strengthening property rights in urban slums has a significant effect on residential investment the rate of housing renovation rises by more than two thirds of the baseline level the bulk of the increase is financed without the use of credit indicating that changes over time reflect an increase in investment incentives related to lower threat of eviction jel o12 o18 p25 p26

the economics of polygyny in sub saharan africa female productivity and the demand for wives in cote d ivoire polygyny is still practiced throughout much of sub saharan africa with important social consequences this paper makes the first attempt to link african polygyny directly to the productivity of women in agriculture using micro data i develop a structural model of the demand for wives that disentangles wealth and substitution effects using a large household survey from cote d ivoire i find that marked geographic diversity in cropping patterns leads to regional variation in female labor productivity i also find that conditional on wealth men do have more wives when women are more productive that is cheaper this substitution effect may explain why polygyny declined in rural areas of cote d ivoire during agricultural development

sustainability performance for china s transportation industry under the environmental regulation abstract traffic and transportation industry is a carbon intensive industry in china the implementation of environmental regulation is of important practical significance nowadays literatures lack of quantitative analysis on transport industry s sustainability performance under the environmental regulation by using a directional distance function this paper aims to investigate the effect of environmental regulation on this industry furthermore this paper measures its green total factor productivity under the general intensity of regulation and strict regulation from 2000 to 2010 results show that the economic growth mode in transportation industry is still the extensive mode while there is great potential for the improvement of energy saving and production

productivity growth technical progress and efficiency change in industrialized countries this paper analyzes productivity growth in 17 oecd countries over the period 1979 1988 a nonparametric programming method activity analysis is used to compute malmquist productivity indexes these are decomposed into two component measures namely technical change and efficiency change we find that u s productivity growth is slightly higher than average all of which is due to technical change japan s productivity growth is the highest in the sample with almost half due to efficiency change jel c43 d24 in this paper we apply recently developed

are there lasting impacts of aid to poor areas abstract the paper re visits the site of a large world bank financed rural development program in china 10 years after it began and four years after disbursements ended the program emphasized community participation in multi sectoral interventions including farming animal husbandry infrastructure and social services data were collected on 2000 households in project and non project areas spanning 10 years a double difference estimator of the program s impact on top of pre existing governmental programs reveals sizeable short term income gains that were mostly saved only small and statistically insignificant gains to mean consumption emerged in the longer term though in rough accord with the average gain to permanent income the use of community based beneficiary selection greatly reduced the overall impact given that the educated poor were under covered the main results are robust to corrections for various sources of selection bias including village targeting and interference due to spillover effects generated by the response of local governments to the external aid

the economics of consanguineous marriages the institution of consanguineous marriage a marriage contracted between close biological relatives has been a basic building block of many societies in different parts of the world this paper argues that the practice of consanguinity is closely related to the practice of dowry and that both arise in response to an agency problem between the families of a bride and a groom when marriage contracts are incomplete dowries transfer control rights to the party with the highest incentives to invest in a marriage when these transactions are costly however consanguinity can be a more appropriate response since it directly reduces the agency cost the paper s model predicts that dowry transfers are less likely to be observed in consanguineous unions it also emphasizes the effect of credit constraints on the relative prevalence of dowry payment and consanguinity an empirical analysis using data from bangladesh delivers robust results consistent with the predictions of the model

collective agricultural production a solution for transition economies abstract the paper examines theoretical reasons and provides examples for productivity differences between agricultural service cooperatives and collectives service cooperatives can utilize economies of scale enhance competitiveness and provide technical information advantages that often outweighed problems of free riding low investment and excessive political intervention agricultural collectives while not adding substantial advantages are in addition associated with problems of supervision and effort supply tendencies to substitute casual workers or mechanization for regular members and low investment incentives while collective forms of organization in transition economies respond to high risk and market imperfections they do so inefficiently policies that create conditions for service cooperatives to compete may lead to large productivity gains

the vertical chain of research and development in the pharmaceutical industry this paper examines the relationship between basic and applied pharmaceutical research we focus on three stages of research and development r d government funded basic research publication in medical journals and industry finded applied r d we estimate that a one percent increase in basic research in a particular therapeutic category causes a 0 76 percent increase in industry r d in that category and a 1 71 percent increase in other categories mer seven years we also find that research incentives differ across government academic and industry researchers for example government funding favors diseases that are less prevalent and more debilitating than industry funding

an exogeneity test for a simultaneous equation tobit model with an application to labor supply a test of weak exogeneity in the simultaneous equation tobit model is proposed and illustrated using a female labour supply model estimated using cross section data the test statistic can be simply output from any standard tobit maximum likelihood package and is asymptotically efficient the procedure provides consistent estimators for the simultaneous tobit model whose asymptotic covariance matrix is a simple extension of the usual tobit formula we also provide the lagrange multiplier test of weak exogeneity this abstract was borrowed from another version of this item

imperfect commitment altruism and the family evidence from transfer behavior in low income rural areas in this paper we examine empirically whether risk pooling is more advantageous among altruistic compared to selfish agents in a framework where individuals cannot make binding commitments in particular we incorporate altuism into a model of risk sharing under imperfect commitment and use simulation methods to establish tests of the roles of both altruism and commitment problems in determining the extent of insurance and the intertemporal movements in interhousehold transfers the tests are carried out using three panel data sets from two countries of rural south asia that provide detailed information on transfers and enable the measurement of income shocks the estimates provide strong support for the notion that imperfect commitment substantially constrains informal transfer arrangements whether kin based or not but also provide evidence that altruism plays an important role in ameliorating commitment constraints and thus in increasing the gains from income pooling

diaspora growth and aggregate remittances an inverted u relationship this paper presents a model in which remittances stem from a decision made jointly by a family coalition of multiple migrants and non migrants allowing two alternative interpretations migrants a

educational homogamy how much is opportunities individuals match on length and type of education we find that around half of the systematic sorting on education is explained by the tendency of individuals to marry someone who went to the same educational institution or to an institution near them this may be due to low search frictions or selection of people with the same preferences into the same institutions the residual half of the systematic sorting on education is a direct effect of partners education which is potentially explained by complementarities in household production in couples with same education