The value of the services provided top human societies by natural ecosystems and biogeochemical cycles has recently been the topic of discussion and research. Here I review some of the basic economic principles necessary for understanding some of the questions that arise in this area. I argue...

This paper analyses child labour participation and its key determinants using the data sets of Peru and Pakistan. The results include tests of the 'Luxury' and 'Substitution' Axioms that play key roles in recent studies on child labour and child schooling.

The market access and welfare effects of Free Trade Areas (FTAs) without Rules of Origin (ROOs) are Studied.