In this paper, we examine the determinants of risk-sensitivity exhibited by humans and other animals. Our dependent measure is the proportion of respondents who choose a sure option over a risky option with equal expected value. We present a meta-analysis of human risk-preference data and...

Environmental constraints have always had and will always have important consequences for human development. It has sometimes contributed to or even caused the reversal of such development. The possibility that such constraints will grow significantly throughout this century raises the concern...