mortality among subjects 65 and older with hemoglobin levels even in the “normal range,” is intriguing, in other studies2,3 confounding comorbid conditions accounted for most or all of the difference between anemic and nonanemic groups. Furthermore, even if 22% of the population were at risk for early demise because their hemoglobin levels were found to be low, it would remain to be shown that ...

This paper shows that polluters who underestimate environmental harm might invest excessively in promoting technological change in pollution control under environmental liability law. Neither strict liability nor negligence can prevent such a distortion. However, we define a second best due care standard under negligence that induces a welfare superior R&D equilibrium. If, on the other hand, po...

Settling an Old Debate In their article “Bantu expansion shows that habitat alters the route and pace of human dispersals,” Grollemund et al. (1) have accomplished more than just their stated intention: to identify the role of habitat in channeling the directions of the early Bantu farming settlement of the African equatorial rainforest. What is most important is that the authors essentially br...