We derive conditions of individual preferences and technology that give rise to a negative correlation between income inequality and environmental protection. We present a class of models (which captures a static model as well as an overlapping-generations model) in which individuals differ in...

Evaluations of new infrastructure in developing countries typically focus on direct effects, such as the impact of an electrifification program on household energy use. But if new infrastructure induces people to move into an area, other local publicly provided goods may become congested,...

This paper studies the impact of income inequality on the level of innovative activity in a model where innovations result in quality improvements. The market for quality goods is characterized by a natural oligopoly with two types of consumers – rich and poor. In general, we find that for...

While increasing income inequality in China has been commented on and studied extensively, relatively little analysis is available on inequality in other dimensions of human development. Using data from different sources, this Paper presents some basic facts on the evolution of spatial...

This paper surveys major empirical regularities concerning changes in earnings inequality in Europe and the US over the past 25 years. Next, it indicates which of these regularities can be explained within the competitive demand-supply framework of analysis and what is left unexplained. Finally,...

This Paper studies the design of education policies in a setting of successive generations with heterogeneous individuals (high and low earning ability). Parents’ investment in education is motivated by warm-glow altruism and determines the probability that a child has high ability. Education...