This paper addresses the problem of model misspecification bias when estimating cohort-level determinants of child height-for-age zscore (HAZ) using data from the Demographic and Health Surveys (DHS). I show that the combination of DHS survey design and the biological realities of child health in developing countries create an artifact that can strongly bias regression estimates when identifica...

Neighborhood built environment characteristics may encourage physical activity, but previous literature on the topic has been critiqued for its reliance on cross-sectional data. In this issue of the Journal, Knuiman et al. (Am J Epidemiol. 2014;180(5):453–461) present longitudinal analyses of built environment characteristics as predictors of neighborhood transportation walking. We take this op...

Objectives: To re-evaluate previously identified determinants of hospital profitability in the postPatient Protection and Affordable Care Act years. Data: Data were obtained from the Florida Uniform Hospital Reporting System, for years 20102014. Study sample: Sample consisted of general acute care or teaching, privately owned, urban hospitals in Florida. Study design: Longitudinal panel data de...

Theoretical perspectives suggest a strong link between maternal mental health and parenting, which may facilitate the intergenerational transmission of disadvantage from depressed mothers to their children. In this paper, I extend prior research by using data from the Fragile Families and Child Wellbeing Study (N = 3659). Pooled OLS and randomeffects regression models document a strong link bet...

Health Care Expenditure and Income in the OECD Reconsidered: Evidence from Panel Data This paper reconsiders the long-run economic relationship between health care expenditure and income using a panel of 20 OECD countries observed over the period 1971-2004. In particular, the paper studies the non-stationarity and cointegration properties between health care spending and income. This is done in...

Since the 1980s, the market structure of vaccines has become increasingly oligopolistic, and in some cases, monopolistic. Alongside these supply trends, we see the emergence and growth of group procurement schemes on the demand side of the market. National governments and international organizations procure vaccines on behalf of end users. Two such organizations include the UNICEF Supply Divisi...

On the Determinants of Pay of CEOs in UK Public Sector Higher Education Institutions The pay determining process of CEOs of UK higher education institutions is modelled using three econometric methodologies applied to a large and unique dataset for the academic years 1997/98 through to 2005/06. A gender differential in pay is detected and this differential remains robust across the specificatio...

Many of the epidemiology studies performed are difficult to compare because of differences in worker populations, industrial settings, welding techniques, duration of exposure, and other occupational exposures besides welding fumes. Some studies were conducted in carefully controlled work environments, others during actual workplace conditions, and some in laboratories. Epidemiology studies hav...