This paper presents an economic model of group formation with an application to data collected from an agricultural credit program in western Honduras. We formulate a simple theory of group formation using the concept of centers of gravity to explain why individuals join a group. According to...

Recent public cash assistance reform measures designed to induce recipients to leave welfare and enter the workforce represent the most important change in social welfare policy in recent decades. Single female-headed families with children (SFHFwC), who represent 53 percent ofnon-metropolitan...

Cost-effective extension strategies are needed to promote widespread adoption of agricultural technologies in developing countries. Integrated pest management (IPM) practices, for example, can offer economic, health, and environmental benefits but remain largely underused. This study evaluates...

Marker-assisted breeding could have a major impact in relieving productivity constraints that cannot as easily or rapidly be relieved by conventional breeding alone. This paper estimates the benefits of using marker-assisted breeding, as compared to conventional breeding alone, in developing...

The economic impact of migrant farmworkers on an agriculture-dependent region is investigated. The direct effects of inflows of state and federal dollars for migrant services, and production of high-valued commodities are computed. Indirect and induced effects are modelled through the use of the...

A misspecification testing strategy designed to ensure that the statistical assumptions underlying a system of equations are appropriate is outlined. The system tests take into account information in, and interactions between, all equations in the system and can be used in a wide variety of...