We explore how a relatively small amount of heterogeneous securities created turmoil in financial markets in much of the world in 2007 and 2008. The drivers of the financial turmoil and the financial crisis of 2008 were heterogeneous securities that were hard to value. These securities created...

This paper addresses transboundary environmental problems in the context of an optimal tax problem, when part of the labor force is mobile across countries. The policy instruments include both commodity taxation and nonlinear income taxation. We show how the tax policy in a noncooperative...

Many discussions have taken place in Brazil about legislation pertaining to subparagraph VII of article 153 of the 1988 Federal Constitution-the regulation, through a Complementary Law, of the Tax on Large Fortunes (Imposto sobre Grandes Fortunas-IGF). In the current scenario, with the country...

This paper examines how immigrants' migration duration and saving decisions in the host country respond to the purchasing power parity (ppp) and the wage ratio between the host and source countries. It is shown that in theory immigrants may stay longer in the host country as a result of an...

A statistical analysis of the UNESCO World Heritage List is presented. The World Heritage Convention intends to protect global heritage of outstanding value to mankind, but there has been great concern about the missing representativity of the member countries. There is a strongly biased...

Previous study by Card and Lewis (2005) has found (puzzling) that inflows of Mexican immigrants into new metropolitan areas have had no effect on the relative wages of very low-skill (high school dropouts). Rather, Mexican workers do affect relative wages for high school graduates. Whereas Card...

Using administrative data from the state of Georgia, the authors find that average wages among documented workers are lower in industries that employ undocumented workers and that a greater share of undocumented workers in those industries further lowers wages. In addition, undocumented workers...