Data from a national survey representative of U.S. dairy operations were used to assess adoption and the production and financial impacts of recombinant bovine somatotropin (rbST). Adoption rates of rbST varied significantly across the nation, but were higher among larger diary operations in all regions. However, the scale bias of rbST adoption was substantially diminished when the influence of...

Ethnic and racial disparities in mental health are driven by social factors such as housing, education, and income. Many of these social factors are different for minorities than they are for whites. Policies that address gaps in these social factors therefore can address mental health status disparities. We analyze three policies and their impact on minorities: the Individuals with Disability ...

An algorithm for quality Delaunay meshing of 2D domains with curved boundaries is presented. The algorithm uses Ruppert’s “corner lopping” heuristic [MR96b:65137]. In addition to admitting a simple termination proof, the algorithm can accept curved input without any bound on the tangent angle between adjoining curves. In the limit case, where all curves are straight line segments, the algorithm...

The potassium-deficient rat exhibits several features in common with the untreated adrenalectomized rat, among which are subnormal growth. lowered blood pressure (1-3), diminished blood pressure responsiveness to pressor substances (4), and decreased tolerance to trauma. It therefore was considered important to determine whether the depressor response induced by potassium depletion might in fac...

We draw on macroeconomic models of diffusion and productivity to explain empirical patterns of survival gains in heart attacks. Using Medicare data for 2.8 million patients during 1986-2004, we find that hospitals rapidly adopting cost-effective innovations such as beta blockers, aspirin, and reperfusion, had substantially better outcomes for their patients. Holding technology adoption constant...

Two studies investigated the implications of ethnic minorities' prejudice expectations for their affective and behavioral outcomes during interethnic interactions. In both studies, the more ethnic minorities expected Whites to be prejudiced, the more negative experiences they had during interethnic interactions. This finding held true for chronic prejudice expectations in a diary study of colle...

1 Household-level panel data from a nationally representative sample of rural Indian households describing the adoption and profitability of high-yielding seed varieties (HYVs) associated with the Green Revolution are used to test the implications of a model incorporating learning-by-doing and learning spillovers. The estimates indicate that: (i) imperfect knowledge about the management of the ...

This Lecture begins with a puzzle about Albert Hirschman’s famous work, Exit, Voice, and Loyalty: Why do we make much of exit and voice but utterly neglect loyalty? It’s a question that goes well beyond Hirschman’s book. For example, much of constitutional theory is preoccupied with a single question: What does a democracy owe its minorities? And most of the answers to this question fit natural...