The 2005 National HIV/AIDS and Reproductive Health Survey in Nigeria provides evidence that multiple sexual partnering increases the risk of contracting HIV and other sexually transmitted diseases. Therefore, partner reduction is one of the prevention strategies to accomplish the Millenium...

The goals of the present paper were to assess measurement invariance using a common econometric method and to illustrate the approach with self-reported measures of parenting behaviors before and after a family intervention. Most recent literature on measurement invariance (MI) in psychological...

We extend the semi-parametric estimation method for dynamic discrete choice models using Hotz and Miller’s (1993) conditional choice probability (CCP) approach to the setting where individuals may have hyperbolic discounting time preferences and may be naive about their time inconsistency. We...

This paper investigates the relationships between health indicators, institutional variables and income inequality. In the economic literature, the impact of income distribution on health status is largely studied. Theoretically, all the mechanisms developed in the literature highlight a...

The theory on the demand for health suggests that schooling causes health because schooling increases the efficiency of health production. Alternatively, the allocative efficiency hypothesis argues that schooling alters the input mix chosen to produce health. This suggests that the more educated...

Three apparently contradictory stylized facts characterize the relationship between per capita incomes and life expectancy: (i) the existence of a strong correlation between the level of life expectancy and the level of per capita income, (ii) the absence of a significant correlation between...

This paper explores the incentives that students and instructors face when a new technology that grants access to online class materials is introduced. We examine the consequences for attendance and for the composition of live lectures. We also analyze how various sources of heterogeneity in...

We estimate the causal effect of early retirement on mortality for blue-collar workers. To overcome the problem of endogenous selection, we exploit an exogenous change in unemployment insurance rules in Austria that allowed workers in eligible regions to withdraw from the workforce up to 3.5...

Background: Abacavir sulfate (abacavir) is associated with a hypersensitivity reaction (HSR) that affects 5-8% of patients. While serious complications are rare, failure to identify it, or abacavir re-challenge following HSR, can be fatal. Genetic screening for HLA-B*5701 can identify patients...

Background: Actinic keratosis (AK) is caused by chronic exposure to UV radiation (sunlight). First-line treatments are cryosurgery, topical 5-fluorouracil (5-FU) and topical diclofenac. Where these are contraindicated or less appropriate, alternatives are imiquimod and photodynamic therapy...