This paper provides empirical evidence on the causal effects that upgrading slum dwellings has on the living conditions of the extremely poor. In particular, we study the impact of providing better houses in situ to slum dwellers in El Salvador, Mexico and Uruguay. We experimentally evaluate the...

A fundamental question in economics is whether happiness increases pari passu with improvements in material conditions or whether humans grow accustomed to better conditions over time. We rely on a large-scale experiment to examine what kind of impact the provision of housing to extremely poor...

We investigate the mechanisms underlying health promotion campaigns designed to eliminate open defecation in at-scale randomized field experiments in four countries: India, Indonesia, Mali, and Tanzania. Health promotion works through a number of mechanisms, including: providing information on...

The creation of non-contributory pension schemes is becoming increasingly common as countries struggle to reduce poverty. Drawing on data from Mexico's Adultos Mayores Program (Older Adults Program) - a cash transfer scheme aimed at rural adults over 70 years of age - we evaluate the effects of...

We find large effects on the earnings of participants from a randomized intervention that gave psychosocial stimulation to stunted Jamaican toddlers living in poverty. The intervention consisted of one-hour weekly visits from community Jamaican health workers over a 2-year period that taught...

We nested a large-scale field experiment into the national rollout of the introduction of performance pay for medical care providers in Rwanda to study the effect of incentives for health care providers. In order to identify the effect of incentives separately from higher compensation, we held...

When physicians own complementary medical service facilities such as clinical laboratories and imaging centers, they gain financially by referring patients to these service entities. This situation creates an incentive for the physician to exploit the consumers' trust by recommending more...

Most of the future growth in energy use is forecast to come from the developing world. Understanding the likely pace and specific location of this growth is essential to inform decisions about energy infrastructure investments and to improve greenhouse gas emissions forecasts. We argue that...

In this paper, we investigate incentive structures within partnerships. Partnerships provide a classic example of the tradeoff between risk spreading and moral hazard. The degree to which firms choose to spread risk and sacrifice efficiency incentives depends upon risk preferences, for which...

This gaper analyzes the welfare implications of fixed price regulation in a model in which consumers are heterogeneous and a firm can endogenously quality discriminate. The motivation for this analysis is the current move of third party payors (governmental and private insurors) toward...