This paper presents a general framework for modeling the impact of insurance on healthcare demand extending some of the results of the two-risk model of Rothschild and Stiglitz (1976), but including the latter as a special case. Rothschild and Stiglitz's approach assumes equivalence between the...

This paper applies concentration curves and indices, that have been previously used to analyze progressivity in health care finance and horizontal equity in health care delivery in developed countries, to a 1998-1999 household survey about health care expenditures and utilization carried out in...

This paper studies the maximin paths of the canonical Dasgupta-Heal-Solow model when the stock of natural capital is a direct argument of well-being, besides consumption. Hartwick's rule then appears as an efficient tool to characterize solutions in a variety of settings. We start with the case...