This brief defines property rights and collective action and discusses the links to sustainability of natural resource management and agricultural systems and to poverty reduction, as well as the implications for policy and practice.

Policymaking initiatives in agriculture and public health are often pursued in a parallel and unconnected fashion. Yet coherent, joint action in agriculture and health could have large potential benefits and substantially reduce risks for the poor. Among development professionals there is growing recognition that agriculture influences health, and health influences agriculture, and that both in turn have profound implications for poverty reduction.

There is renewed interest in the intrahousehold allocation of welfare, particularly among economists studying poor countries where even slight differences in the allocation of household resources can have dramatic consequences on child and female nutrition, morbidity, and mortality (Haddad and Hoddinott 1994; Rose 1999; Dercon and Krishnan 2000). The evidence collected so far tends to demonstrate that the allocation of consumption and leisure among household members varies systematically with their relative contributions to household total income (Thomas 1990; Alderman et al.

Gender differences in health and nutrition have long been a subject of study in the intrahousehold allocation literature. Unlike consumption expenditures or farm production, measurements of health and nutritional outcomes are always at the individual level, and thus factors that underlie systematic differences in outcomes—such as age, gender, and position within the household—are more readily apparent.

It is a well-known fact that households in developing countries often undergo weather-related and other shocks that drastically affect incomes. A large and growing literature explores the effectiveness of response to these events. One strand of the literature addresses the strategies that households and governments use to protect against income shocks (Udry 1990; Fafchamps, Udry, and Czukas 1998; Kochar 1999). A second strand looks at the effectiveness of these strategies in reducing fluctuations in consumption.

Despite substantial economic liberalization since the early 1990s, nontraditional exports in Zambia have grown only moderately and agricultural performance overall has been disappointing. Though agriculture accounts for less than 20 percent of gross domestic product (GDP), it is the most important source of employment, especially for women. Interpretations of Zambia’s poor performance variously emphasize external factors, such as declining copper prices and vulnerability to weather shocks, and market imperfections.

Reduction of rural poverty is one of the greatest challenges the Government of Nepal faces. Since most of the country’s agricultural production is semi-subsistence-oriented, increased commercialization of this rural-based economy is essential for poverty reduction and economic growth. Consequently, farm output diversification and productivity improvements are high-priority areas for the government.

Micronutrient malnutrition is a serious problem in developing countries. It is well established that micronutrient requirements are greater for women and children because of their special needs for reproduction and growth. Unfortunately, however, women and children suffer most from micronutrient deficiencies. Micronutrient deficiency impairs the cognitive development of young children, retards physical growth, increases child mortality, and contributes to the problem of maternal death during childbirth.

The early work on intrahousehold allocation alerted researchers and policymakers to the possible policy failures that could arise from neglect of intrahousehold allocation issues (Haddad, Hoddinott, and Alderman 1997). Conversely, what are the policy gains from paying attention to these issues? The new research on intrahousehold issues provides evidence that policies and interventions can be made more effective when differential rights, resources, and responsibilities within the household are explicitly considered.

The bargaining power of men and women crucially shapes the resource allocation decisions households make (Quisumbing and de la Brière 2000). Husbands and wives often use their bargaining power to express different priorities about how resources should be allocated. Understanding these differences and their effects is critical if policymakers are to improve livelihoods. Increasing the bargaining power of one gender group rather than another can mean the difference between policy failure and policy success.

Traditional models of household economic behavior have portrayed households as unified entities. They assume that household members agree about decisions and share resources in the most equitable way possible. More recently, however, economists have come to view households as domains of difference, where multiple decisionmakers may have different preferences and, in many cases, control separate sets of resources. This new approach has greatly improved understanding of household resource allocation behavior.

One in every three preschool-aged children living in developing countries is malnourished. This disturbing yet preventable state of affairs causes untold suffering and, given its wide scale, is a major obstacle to the development process itself. Volumes have been written about the causes of child malnutrition and the actions that can be taken to reduce it— ranging from community-based feeding programs to accelerated economic growth (Smith and Haddad 2000).