Most rich countries developed without aid, and this .self-development. has some intrinsic advantages. In today.s massively unequal world, however, such an approach would imply very low levels of human development for several generations for many poor countries. Aid can therefore usefully be...

Thanks to anti-retroviral therapies, people living with HIV in developing countries can now have a near-normal life at a cost of a few hundred dollars per year. We postulate that given this newly low cost of maintaining lives, there is a moral duty to rescue those who are infected. The core of...

This paper provides an analysis of the benefits to society from the conversion of nicotine replacement drugs (nicotine patches and gum) in 1996 from sale by prescription only in the United States to over-the-counter (OTC) sales. To estimate these benefits, we first estimate statistical demand...

The production-possibility frontier is strictly concave and negatively sloped if two commodities are produced according to linearly homogeneous, strictly quasi-concave production functions that use, with different intensities, two factors of production that are available in fixed supply. In this...