"In infrastructure, the possibility of a positive relationship between operators' profitability and the degree of concentration is a major political issue in view of the wide diversity of feelings about the potential role of the private sector. This is particularly important because of (1) the...

"This paper exploits the transitions between tax-financed health care and social health insurance in the OECD countries over the period 1960-2006 to assess the effects of adopting social health insurance over tax finance on per capita health spending, amenable mortality, and labor market...