LTR junk-food consumption balances the marginal satisfaction with the marginal deterioration of health. An LTR person discounts the instantaneous marginal satisfaction from junk-food consumption by its implications for his survival probability. His change rate of health evaluation is increased...

Junk-food consumption, health and productivity are analysed within an expectedlifetime- utility-maximising framework in which longevity and productivity rise with health, and health deteriorates with the consumption of junk food. As long as the junk food’s relative taste-price differential is...

In the absence of a comprehensive international agreement, each country unilaterally sets her abatement of greenhouse gas emissions at a level that possibly maximizes her expected net benefit. In addition to a cleaner and healthier domestic environment and a slower global warming, a country’s...

This paper derives some possible implications of changing carrying capacity and environmental concerns for human survival. It proposes that even in the absence of any further technological, healthcare, social and international progress, diminishing complacency embarks the global environment and...

This exploratory paper outlines the special macroeconomic features of countries populated by two groups of people engaged in internal conflict yet forming a central government for generating benefits that cannot be privately attained. Each group exerts an influence on the central government in...