Vulnerability,shocks and persistence of poverty: estimates for semi‐arid rural South India

This paper focuses on the vulnerability of rural households to poverty when a negative crop shock occurs. The analysis is based on the ICRISAT panel survey of households in a semi‐arid region in south India during 1975–84. Using a dynamic panel data model that takes into account effects of crop shocks, an assessment of vulnerability of different groups of households is carried out. What is somewhat surprising is that even sections of relatively affluent households are highly vulnerable to long spells of poverty when severe crop shocks occur. As such crop shocks are frequent in a harsh production environment, there must be a shift of emphasis in anti‐poverty measures from meeting income shortfalls among the poor to enabling the vulnerable to protect themselves better against these shocks.     

The importance of the savings device in precautionary savings: Empirical evidence from rural Bangladesh

We test if precautionary behavior in the consumption decisions of rural households differs across the forms of savings. Using monthly panel data from Bangladesh, we find that, on average, the savings device does not matter but that the effect of income on savings indeed depends on the savings device. Precautionary savings in the form of staple grain are relatively constant across income quartiles, while nongrain precautionary savings vary across income quartiles. Previous studies, which treat these two types of savings devices as fungible, misdiagnose the reasons for, and by extension the market failures behind, a large percentage of the precautionary savings held by rural households.     

Does participation in the conservation reserve program impact the economic well‐being of farm households?

This study uses U.S. farm household survey data to examine how participation in the Conservation Reserve Program (CRP) affects farm household economic well-being. Further, the study also examines the effects of CRP participation on farm household consumption, income, and imputed savings. In contrast to previous studies that assume the relationships are homogenous across the population, quantile regression is used to investigate the association between CRP participation across the entire distribution of farm household consumption and income. Empirical findings suggest that the effect of CRP participation on household economic well-being differs across the income and consumption distribution. For households in the lower percentiles of the distribution, the CRP participation is associated with an increase in household consumption, but a decrease in farm household income and savings. In contrast, farm households at the median and higher income and consumption quantiles, participation in CRP is associated with lower levels of household consumption and income, but with higher levels of savings.     

Assessing the Effects of Hazards and Interventions on Farm Household Liquidity in Sudan - A Preliminary Accounting Model

The informed assessment of the effects of hazards on farm households and the design of appropriate interventions requires a knowledge of the pattern of household cash and asset stocks and flows. This paper uses the example of a poor farm household in Kordofan, Sudan to build a debt/savings model and then study the effects of environmental “shocks” and different forms of interventions. The results suggest that, in the absence of external injection in the form of technological improvement or worker remittances, over the period 1988–1992, households would have descended into a debt spiral, even with formal credit. With income improvements solvency would have only been ensured if formal credit had been available. Although more work needs to be done to increase the validity of such “accounting” models of farm household liquidity, this study has established a methodology which can be improved upon and applied elsewhere.     

Modeling household behavior in developing countries: discussion

A large and growing body of literature has examined how agricultural households cope with risk. Much of the work has focused on which types of households are better able to smooth consumption, testing whether households with more resources and greater access to income-smoothing institutions, such as credit markets or well-functioning labor markets exhibit greater consumption smoothing. However, income shocks may have different effects upon different individuals within households, and differences in individual ability to smooth income or consumption may have welfare consequences which go beyond foregone income. The development of collective household models challenges the assumption that individuals within households maximize a single utility function. The assumption of income pooling has also been rejected in a growing body of empirical research on intrahousehold resource allocation. However, research on risk-pooling within households and differences in individual abilities to smooth consumption is relatively new. Selected papers are discussed.     

Land Markets, Risk and Distress Sales in Nicaragua: The Impact of Income Shocks on Rural Differentiation

Farmers in the Nicaragua countryside face substantial risk due to legal uncertainty regarding property rights, price fluctuations and limited access to rural financial markets. Income shocks can lead to obligations to sell land, can fuel differentiation processes, and can drive people into poverty. We review empirical evidence on income shocks and related distress sales by households of different wealth endowments. From panel data of the 1995 and 2000 land market surveys, estimates are made to identify relevant farm household characteristics and the market forces that determine distress sales. Results show that small farms are most affected by idiosyncratic shocks and usually try to adopt a defensive strategy based on reduced consumption to retain their land resources. In the long run, this strategy occasionally succeeds in preserving land ownership and maintaining income at higher levels than those enjoyed by landless peasants. But the pressures towards distress sales can, nevertheless, be powerful, and different responses to income shocks by poor, middle and rich peasants are likely to increase rural differentiation.     

林业补贴政策对浙江林农营林投入和收入影响分析

基于浙江省3县368户农户的调查数据,采用双重差分模型(DID)研究实施中央财政林业补贴政策对林农营林投入和收入的影响。结果表明:实施林业补贴政策可以显著增加农户的营林投入,但对农户的营林增收没有显著带动作用,这证明林业补贴能够有效刺激林农的营林积极性,但增收效果仍有待观察。因此,选取林业补贴对象应注重"普惠+特惠"制、林业补贴政策需长期稳定执行、政府部门应加强林业补贴政策的宣传力度。     

How Do Rural Households Cope with Economic Shocks? Insights from Global Data using Hierarchical Analysis

Unanticipated events can cause considerable economic hardship for poor rural households. Some types of negative shocks, for example weather‐related agricultural losses and vector‐borne diseases, are expected to occur more frequently as a result of climate change. In this paper we measure the role of household‐ and location‐specific characteristics in conditioning behavioural responses to a wide range of idiosyncratic and covariate shocks. We use data from 8,000 rural households in 25 developing countries, compiled in the global database of the Poverty Environment Network. We employ a hierarchical multinomial logit model to identify the importance of characteristics observed at different levels of aggregation on a set of strategies aimed at coping with economic shocks. Results indicate that in response to idiosyncratic shocks, households tend to deplete financial and durable assets, whereas covariate and thus often climate‐related shocks predominantly result in reduced consumption. Households in sites characterised by high asset wealth tend to cope with shocks in a more proactive way than those in sites with average or below average asset wealth, but the role of asset types in conditioning shock responses varies across regions. Our findings have implications for rural development and climate change adaptation strategies.     

Bundling of Basic Public Services and Household Welfare in Developing Countries: An Empirical Exploration for the Case of Peru

Using panel data for Peru for the period 1994–2000, we found that increases in household welfare, as measured by changes in consumption, are larger when households receive two or more services jointly than when services are provided separately. Such increases appear to be more than proportional, as F-tests on the coefficients of the corresponding regressors confirm. Thus, we found that bundling of services may help realize welfare effects. This finding is particularly robust in the case of urban areas.     

风险冲击对农村居民家庭相对贫困的影响——基于CFPS数据的实证分析

目的 试图从微观农户层面研究风险冲击对相对贫困的影响及作用路径,以期为增强农村居民家庭风险抵御能力、缓解相对贫困提供实证支撑。方法 文章基于中国家庭动态追踪调查（CFPS）数据,运用面板probit模型和固定效应模型实证分析风险冲击对农村居民家庭相对贫困的影响,用异质性分析和面板门槛回归模型探讨不同收入水平的农村居民家庭风险应对方式差异。结果 （1）风险冲击会增加农村居民家庭相对贫困的可能。其中,灾害冲击是导致农村居民家庭相对贫困的首要原因,其次是教育冲击和婚丧嫁娶、孩子出生等重大事件冲击,失业冲击和健康冲击的影响相对较小。（2）不同收入水平农村居民家庭的风险应对机制差异是导致相对贫困家庭无法摆脱相对贫困的重要原因。与高收入的农村居民家庭相比,低收入的农村居民家庭遭受风险冲击时会减少更多的农业生产投资,增加更少的人力资本投资,导致家庭现有的资源配置无法提升家庭未来的收入能力,使其囿于相对贫困无法脱离。结论 政府应构建更具韧性的国家治理体系、更具弹性的社会帮扶体系,在此基础上提高农村居民家庭的可持续生计能力,从而减少农村居民家庭陷入相对贫困的可能。     

Cash crop choice and income dynamics in rural areas: evidence for post‐crisis Indonesia

In this article we investigate the factors affecting levels and growth of incomes in rural Indonesia following the crisis of 1997–1998. In particular, we investigate the relative roles of nonfarm incomes and productivity improvements achieved via changes in crops versus improvements on the same crops on income dynamics. Framing the article in the context of an optimal labor allocation model, relying on unique household panel data from Central Sulawesi, and using advanced panel econometric methods, we find that local innovations related to the adoption and intensification of new cash crop varieties, more specifically the shift from coffee to cocoa production, can explain a substantial part of the observed post‐crisis developments. Causal estimates of the effect of growing cocoa suggest that households were on average able to achieve about 14% higher income levels during the post‐crisis period compared to the planting of other crops, most notably coffee. Also, our results demonstrate the importance of engagement in nonfarm activities for household income growth. Comparative analyses using a nationally representative survey suggest that similar processes are at play in other parts of Indonesia.     

Health and hunger: nutrient response to income depending on caloric availability in Nepal

Using data from NLSS III, we estimate nutrient‐income elasticities for macronutrients, vitamins, and minerals. We further allow for differential nutrient demand response to income depending on where a household is in the caloric availability distribution. We find that some nutrients are income inelastic indicating that they are necessity goods while others are relatively income elastic. We further test and reject equivalent nutrient‐income elasticities across the caloric availability distribution. Households in the lowest calorie quintile have highly income elastic nutrient demand leaving them vulnerable to income fluctuations. Moreover, as households meet their first‐order caloric needs, they substitute away from cheap calorie‐dense staples toward more expensive nutrient‐dense foods. Finally, for most nutrients, households in the highest calorie quintile exhibit more elastic nutrient demand, similar to households in the lowest quintile. Our results suggest that policies aimed at improving income will likely also improve household nutrient availability, particularly for the most calorie poor households. They further suggest that policies aimed at protecting poor households from negative income shocks will also likely yield nutritional benefits.     

Analysis of food demand in Vietnam and short‐term impacts of market shocks on quantity and calorie consumption

A complete demand system for Vietnam was estimated using household survey data. Results showed that demand for rice with respect to prices and expenditure is relatively inelastic compared to other foods. Demand for food in general tends to be less elastic at higher levels of income and for urban households. In the short term, a market shock such as a 10% decrease in income or a 30% increase in rice prices forces households to spend a larger portion of their expenditure on rice at the expense of other foods. Low‐income households face a higher risk of undernourishment as their daily calorie intake is more negatively affected by the shocks than high‐income households. The results suggest the importance of policies that provide necessary safety net programs for the poor.     

Floods,food security,and coping strategies: Evidence from Afghanistan

In this paper, we assess the long‐term effect of floods on food security (as measured by calorie and micronutrient consumption) by applying an instrumental variable approach to data from the Afghanistan National Risk and Vulnerability Assessment survey. To identify the determinants of this effect, we also estimate how floods affect per capita yearly household income and poverty status. We find that exposure to flooding during a 12‐month period decreased daily calorie consumption by approximately 60 kcal while increasing the probability of iron, vitamin A, and vitamin C deficiency by 11, 12, and 27 percentage points, respectively. Controlling for price shocks and income only marginally reduces this flood effect on food security, suggesting that impaired livelihoods (rather than price hikes) are its primary driver. We further determine that exposure to this natural disaster decreases income by about 3% and makes flood‐affected households about 3 percentage points more likely to be poor. Lastly, we show that experience of floods is strongly and significantly associated with lower diet quality and quantity, and with engaging in consumption smoothing coping strategies, such as buying food on credit and taking loans. These findings underscore the serious direct impact of floods on both diet and effective behavioral responses to such shocks while emphasizing the need for targeted micronutrient supplementation in disaster relief and food aid measures even after the period of natural disaster emergency.     

Long-term consequences of short-term precipitation shocks: evidence from Brazilian migrant households

We find that large short-term precipitation shocks damage the long-term income of households that have permanently migrated from rural to urban areas. This outcome is consistent with the behavior of credit-constrained rural households who are willing to accept lower long-term income in urban areas following the depletion of their productive assets during an adverse shock. Our empirical evidence suggests that there may be a link between large precipitation shocks in rural areas and urban poverty. Further exploration is warranted on the mechanisms by which natural disasters cause these long-term losses.     

Unpacked and packed fluid milk consumption patterns and preferences in Turkey

The objective of this study is to investigate unpacked and packed fluid milk consumption patterns and preferences among Turkish households by using cross‐sectional survey data from 18,278 households. Based on the data, 47.8% of the households consume unpacked milk, 29.3% consume sterilized milk, and 7.9% consume pasteurized fluid milk at least once a month. Results of the multinomial logit model for fluid milk consumption behavior suggest that unpacked fluid milk preference is related positively to household size, income and age of the household head, and negatively to education level of the household head and status of the household wife. Similarly, pasteurized and sterilized fluid milk preferences are related positively to income and the education level of the household head, and negatively to household size and age of the household head. Results from these analyses are used to suggest techniques for marketing fluid milk products to specific segments of the consumer population.     

全面停伐政策对国有林区居民家庭收入的影响

基于2014—2017年对东北、内蒙古国有林区的调研数据,采用双重差分模型(DID)评估全面停伐政策对国有林区居民家庭的人均工资性收入和家庭人均收入的影响。研究结果表明:全面停伐政策的实施对林区居民家庭人均工资性收入和人均收入均存在消极影响;家中有人在其他企事业单位上班有利于促进国有林区居民家庭人均工资性收入和人均收入的增长;从事农林经营不利于国有林区居民家庭人均工资性收入增长,虽然通过获得农林经营收入可以在一定程度上填补工资性收入的减少,但是对家庭人均收入无显著消极影响。因此,建议国家林业与草原局对国有林区居民家庭进行专项资金扶持;转岗分流安排富余劳动力;改变国有林区居民保守的就业观念并鼓励自主创业等。     

How do obese people afford to be obese? Consumption strategies of Russian households

This article investigates the extent to which Russian households that differ in their members’ weight status adjust their food consumption differently when their economic resources change. Using household‐panel data from the Russia Longitudinal Monitoring Survey (RLMS) from 1995 to 2005, we estimate total expenditure elasticities of food expenditures, food quantities, and food quality for normal‐weight, overweight, and obese households, respectively. The expenditure elasticities of quality derived for obese households for meat, bread, fruits, and dairy were found to be 15–20% higher than those of normal households. Hence, a change in economic resources causes obese households to adjust the quality of purchased foods significantly more flexibly than normal‐weight households. Only few differences were found for quantity and expenditure reactions. Our results emphasize that policies aiming to reduce obesity should consider deviations in consumption behavior of normal and obese consumers in terms of quality.     

The Stability and Instability of Organic Expenditures in Denmark,Great Britain,and Italy

This article concerns demand for organic foods in 3 European countries: Denmark, Great Britain, and Italy. Based on extensive sets of household panel data we categorize households into 4 groups according to their levels of organic consumption. Importance of sociodemographics is estimated by applying multinomial logit models. In all 3 countries a high organic consumption is mainly found among the more well-situated households in urban areas. Although the relative size of the user groups is fairly stable over time, we find variation in the organic consumption of individual households.     

Rural household incomes and land grabbing in Cambodia

This paper empirically quantifies environmentally augmented rural household incomes in Cambodia and analyzes how economic land concessions (ELCs) affect such incomes. Data is derived from a structured survey of 600 randomly selected households in 15 villages in three study sites in Cambodia, where local livelihoods are highly reliant on access to land and natural resources, supported by qualitative data from focus group discussions. Gini coefficient decomposition, multiple regression models, and propensity score matching (PSM) models were employed to analyze the composition of income portfolios, determinants of major income sources, and the impacts of land grabbing on incomes. Results documented high reliance on environmental income (32–35% of total household income) and farm income (51–53%) across income quartiles; demonstrated the variation in product composition across quartiles and the contribution of each major product to income inequality; and identified the main household characteristics influencing absolute and relative incomes. ELCs were found to consistently have negative impacts on household total income, environmental income, size of available cultivable land and livestock holdings, and increasing the distance to forests. The total household annual income subjects to ELCs were estimated to decrease by 15–19%. While providing some employment opportunities, we find no evidence of positive income effects of ELCs on households in the areas where ELCs are located.