"One of the recurring themes in the sustainability literature has been the legitimacy of using an economic framework to account for natural resources. This paper examines the potential for substituting between different inputs in the generation of income, where the inputs include natural...

Tonga is an archipelago composed of 172 islands spread across a combined land and sea area of 72,000sq.km. According to the 2011 census, Tonga had a population of 103, 252 people spread across 36 of the 172 islands. A population scattered so widely across such a large area can pose logistical...

"The initial occupational placements of male immigrants in the U.S. labor market vary significantly by country of origin even when education and other factors are taken into account. Does the heterogeneity persist over time? Using data from the 1980, 1990, and 2000 U.S. Censuses, this study...

Changes in demographics and patterns of investment in human capital are creating opportunities for international trade in professional services. As populations in rich countries age, developing countries are seeing an increase in the proportion of working-age people. At the same time, the...

"The authors analyze recent efforts at international cooperation to limit illegal migration, particularly through the use of legal migration avenues like guest worker schemes. They show that while guest worker schemes may be desirable as an avenue of international migration, they are an...