"This paper examines the welfare implications associated with different degrees of diversity or similarity between migrants and natives under both migration and trade. We use a general equilibrium model of migration, human capital and social capital and find that there are three equilibrium...

This paper deals with EU-Directive 89/552/EEC "Television Without Frontiers", which enables each EU-country to set up a list of major events that are not allowed to be transmitted in Pay-TV. We analyze this kind of regulation using instruments of game-theory and monopoly-theory. We compare the...

The paper examines the incentives of Governments to introduce green taxes instead of emission licenses. We take into account the fact that licenses are durable goods, and distinguish Governements that may have fiscal goals as well as ecological ones. Taxes solve the credibility problem a...

Ind ividual moral hazard engendered by health insurance and monopolistic production are both typical phenomena of drug markets. We develop a simple model containing these two elements and evaluate the market equilibrium on the basis of consumer and social welfare. The consumer welfare criterion...