In response to the dramatic rise in childhood obesity, the Centers for Disease Control (CDC) and other organizations …-2004. Results from IV models indicate that PE lowers BMI z-score and reduces the probability of obesity among 5th graders (in … represents some of the first evidence of a causal effect of PE on youth obesity, and thus offers at least some support to the …

of importance for estimating the fitness of biological populations, aggregate population modeling, and studying the long …

ratings that accompanied increased control over employee fitness and health risk appraisal. On the other hand , individuals …

examine whether labour market conditions affect fitness. Running times improve during recessions for men and women aged 50 and … above but worsen for men aged 20-49 and women aged 20-29, suggesting that the fall in the opportunity costs of fitness …

preferences related to fertility and mortality, the two basic components of genetic fitness. We specifically select six referenda … groups, in order to uphold its cultural values, has supported policies that could impose fitness costs on individuals in the …

This paper argues that while sources of potential discipline over domestic macro economic policies such as pegged …, as opposed to genuinely fixed exchange rates, are typically not an adequate substitute for domestic discipline enhancing … strategies as sources of discipline. Indeed, their effects can sometimes be perverse. For example, high capital mobility under …