In many randomized trials, subjects enter the sample sequentially. Because the covariates for all units are not known in advance, standard methods of stratification do not apply. We describe and assess the method of DA-optimal sequential allocation (Atkinson, 1982) for balancing stratification...

Basic sanitation and hygiene can prevent roughly a million deaths a year. This study examines the rapid prototyping of a pilot school-based handwashing, safe water, and sanitation program in Chennai, India. Our content analysis identified challenges in the classroom (Localization; Curriculum...

Substantial evidence shows that North Americans are generally more accepting of the market than Europeans and attribute market outcomes to a larger degree to effort or skill. This article discusses the perceived fairness of layoffs and pay cuts in North America and Germany. We expect North...

We examine the following paradox: In a dynamic setting, an arbitrarily large finite number of agents adn a continuum of agents can lead to radically different equilibrium outcomes. We show that in a simple strategic setting this paradox is a general phenomenon. We also show that the paradox...