Christopher Udry

Gender, Agricultural Production, and the Theory of the Household

Virtually all models of the household assume that the allocation of resources is Pareto efficient. Within many African households, agricultural production occurs on many plots controlled by different members of the household. Pareto efficiency implies that factors should be allocated efficiently across these plots. I find, in contrast, that plots controlled by women are farmed much less intensively than similar plots within the household controlled by men. The estimates imply that about 6 percent of output is lost because of inefficient factor allocation within the household. The paper suggests a new approach to modeling intrahousehold allocation consistent with the empirical results.

Risk and Insurance in a Rural Credit Market: An Empirical Investigation in Northern Nigeria

Credit contracts play a direct role in pooling risk between households in northern Nigeria. Repayments owed by borrowers depend on realizations of random shocks by both borrowers and lenders. The paper develops two models of state-contingent loans. The first is a competitive equilibrium in perfectly enforceable contracts. The second permits imperfect information and equilibrium default. Estimates of both models indicate that quantitatively important state-contingent payments are embedded in these loan transactions, but that a fully efficient risk-pooling equilibrium is not achieved. The research is based on a year-long survey in Zaria, Nigeria conducted by the author.

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.

Drought and Saving in West Africa: Are Livestock a Buffer Stock?

Households in the west African semi-arid tropics face substantial risk -- an inevitable consequence of engaging in rainfed agriculture in a drought-prone environment. It has long been hypothesized that these households keep livestock as a buffer stock to insulate their consumption from income fluctuations income. This paper tests this hypothesis. Results indicate that livestock transactions play less of a consumption smoothing role than often assumed. Livestock sales compensate for at most thirty percent, and probably closer to twenty percent of income shortfalls due to village-level shocks alone. We discuss possible explanations for these results and suggest directions for future work.

Gender differentials in farm productivity: Implications for household efficiency and agricultural policy

Abstract Within many African households, agricultural production is simultaneously carried out on many plots controlled by different members of the household. Detailed plot-level agronomic data from Burkina Faso provides striking evidence of substantial inefficiencies in the allocation of factors of production across the plots controlled by different members of the household. Production function estimates imply that the value of household output could be increased by 10–15% by reallocating currently used factors of production across plots. This finding contradicts standard models of agricultural households. A richer model of behaviour, which recognizes that the individuals who comprise a household compete as well as co-operate, has important implications for the structure of agricultural production and for the design of agricultural policy.

Institutions and Development: A View from Below

In this paper we argue the case for greater exploitation of synergies between research on specific institutions based on micro-data and the big questions posed by the institutions and growth literature. To date, the macroeconomic literature on institutions and growth has largely relied on cross-country regression evidence. This has provided compelling evidence for a causal link between a cluster of ‘good’ institutions and more rapid long run growth. However, an inability to disentangle the effects of specific institutional channels on growth or to understand the impact of institutional change on growth will limit further progress using a cross-country empirical strategy. We suggest two research programs based on micro-data that have significant potential. The first uses policy-induced variation in specific institutions within countries to understand how these institutions influence economic activity. The second exploits the fact that the incentives provided by a given institutional context often vary with individuals’ economic and political status. This can help us better understand how institutional change arises in response to changing economic and demographic pressures.

Rural Financial Markets in Developing Countries

This review examines portions of the vast literature on rural financial markets and household behavior in the face of risk and uncertainty. We place particular emphasis on studying the important role of financial intermediaries, competition and regulation in shaping the changing structure and organization of rural markets, rather than on household strategies and bilateral contracting. Our goal is to provide a framework within which the evolution of financial intermediation in rural economies can be understood.

A multifaceted program causes lasting progress for the very poor: Evidence from six countries

Attacking the problem of extreme poverty A persistent concern about wellintentioned efforts to improve living standards for the 1.2 billion people who survive (if it can be called that) on less than

The Return to Capital in Ghana

1.25 US per day is figuring out what works. A second concern is figuring out whether what works in one setting can be made to work in another. Banerjee et al. describe encouraging results from a set of pilot projects in Ethiopia, Ghana, Honduras, India, Pakistan, and Peru encompassing 11,000 households. Each project provided short-term aid and longer-term support to help participants graduate to a sustainable level of existence. Science, this issue 10.1126/science.1260799 Helping people in Ethiopia, Ghana, Honduras, India, Pakistan, and Peru to become self-employed enables the very poor to become less poor. INTRODUCTION Working in six countries with an international consortium, we investigate whether a multifaceted Graduation program can help the extreme poor establish sustainable self-employment activities and generate lasting improvements in their well-being. The program targets the poorest members in a village and provides a productive asset grant, training and support, life skills coaching, temporary cash consumption support, and typically access to savings accounts and health information or services. In each country, the program was adjusted to suit different contexts and cultures, while staying true to the same overall principles. This multipronged approach is relatively expensive, but the theory of change is that the combination of these activities is necessary and sufficient to obtain a persistent impact. We do not test whether each of the program dimensions is individually necessary. Instead, we examine the “sufficiency” claim: A year after the conclusion of the program, and 3 years after the asset transfer, are program participants earning more income and achieving stable improvements in their well-being? RATIONALE We conducted six randomized trials in Ethiopia, Ghana, Honduras, India, Pakistan, and Peru with a total of 10,495 participants. In each site, our implementing partners selected eligible villages based on being in geographies associated with extreme poverty, and then identified the poorest of the poor in these villages through a participatory wealth-ranking process. About half the eligible participants were assigned to treatment, and half to control. In three of the sites, to measure within village spillovers, we also randomized half of villages to treatment and half to control. We conducted a baseline survey on all eligible participants, as well as an endline at the end of the intervention (typically 24 months after the start of the intervention) and a second endline 1 year after the first endline. We measure impacts on consumption, food security, productive and household assets, financial inclusion, time use, income and revenues, physical health, mental health, political involvement, and women’s empowerment. RESULTS At the end of the intervention, we found statistically significant impacts on all 10 key outcomes or indices. One year after the end of the intervention, 36 months after the productive asset transfer, 8 out of 10 indices still showed statistically significant gains, and there was very little or no decline in the impact of the program on the key variables (consumption, household assets, and food security). Income and revenues were significantly higher in the treatment group in every country. Household consumption was significantly higher in every country except one (Honduras). In most countries, the (discounted) extra earnings exceeded the program cost. CONCLUSION The Graduation program’s primary goal, to substantially increase consumption of the very poor, is achieved by the conclusion of the program and maintained 1 year later. The estimated benefits are higher than the costs in five out of six sites. Although more can be learned about how to optimize the design and implementation of the program, we establish that a multifaceted approach to increasing income and well-being for the ultrapoor is sustainable and cost-effective. We present results from six randomized control trials of an integrated approach to improve livelihoods among the very poor. The approach combines the transfer of a productive asset with consumption support, training, and coaching plus savings encouragement and health education and/or services. Results from the implementation of the same basic program, adapted to a wide variety of geographic and institutional contexts and with multiple implementing partners, show statistically significant cost-effective impacts on consumption (fueled mostly by increases in self-employment income) and psychosocial status of the targeted households. The impact on the poor households lasted at least a year after all implementation ended. It is possible to make sustainable improvements in the economic status of the poor with a relatively short-term intervention.

Estimation of Type 3 Tobit models using symmetric trimming and pairwise comparisons

We show that the real return to capital in Ghanas informal sector is high. For farmers, we find annual returns ranging from 205-350% in the new technology of pineapple cultivation, and 30-50% in well-established food crop cultivation. We also examine the relative prices of durable goods of varying durability, and estimate a lower bound to the opportunity cost of capital of 60%.