In their recent paper, Efficient Pollution Regulation: Getting the Prices Right (henceforth, EPR), Muller and Mendelsohn describe a broader, more appealing concept of efficiency that incorporates information on damages caused by emissions from specific sources: “The science and economics...

We use the classical model, a method for structured expert judgment (SEJ), to study the effects of breastfeeding on IQ. Data on the link between breastfeeding and IQ are available, e.g., the US National Longitudinal Study of Youth, however, questions about data quality and confounding mean...

In 2009 the Food and Drug Administration (FDA) estimated that its shell egg rule would reduce illness from Salmonella Enteritidis (SE) by about 79,000 cases annually (37%), with a range from about 30,000 to 191,000 cases avoided. I assess the effectiveness of this rule, which requires farmers...