Consider a population of farmers who live around a lake. Each farmer engages in trade with his m adjacent neighbors, where m is termed the "span of interaction". Trade is governed by a prisoner's dilemma "rule of engagement". A farmer's payoff is the sum of the payoffs from the m prisoner's...

Land use and crop production in the Khorezm region in western Uzbekistan, exemplarily for the irrigated low-lands of Central Asia, is adversely affected by the excessive, non-sustainable use of irrigation water on one hand, repeated droughts on the other hand, and by soil degradation by...

Phosphorus is a key element in food production, but is a non-renewable resource. Recent estimates suggest that global production of P fertilizers will peak in 2033 and will be one third of that peak level by the end of the 21st century. Population and income growth will increase demand for food,...

In this paper I delineate novel policy repercussions suggested by my research on "The New Economics of the Brain Drain". In section 1, I provide a succinct account of the model that inspires the derivation of several new policy implications. In sections 2 through 5, I present the policy...

With the political changes in South Africa in the early 1990s, the South African government introduced a reform process in the entire water sector with the goal of a more enhanced and equitable water management system. This paper analyzes existing water allocation situations and applies a...

Using a model that admits variable returns and imperfect competition, we investigate the impact on total factor productivity of trade liberalization in six emerging economies. Regressions based on panel data for 28 three-digit manufacturing industries show that productivity growth is insensitive...

We present a theory that systematically and causally links the well-being of native inhabitants with variation in the extent of the assimilation of migrants. Recent empirical findings are yielded as predictions of the theory.

Social comparisons are important in the employment sphere. A "culture of unemployment" may evolve and prevail because it is optimal for an individual to remain unemployed when other unemployed individuals constitute his main reference group. We advance the idea that by making the receipt of...

This paper serves to disentangle the complex system of Indian food policies related to wheat and rice procurement, storage, distribution and trade. Using nationally aggregated time series data, these policies are econometrically analysed. Based on the estimation results, their market...