A cap on greenhouse gas emissions makes total emissions a fixed common-property resource. Population increases under a cap are therefore self-limiting: a population increase raises labor and reduces emissions per unit of labor, which lowers incomes and fertility. Because a marginal birth under a...

The Food and Agriculture Organization of the United Nations (FAO) has estimated that in 2010-2012, 868 million people were undernourished world-wide. At the sam time, FAO reported that approximately 1.3 billion tons of food were lost or wasted globally in 2007, which was equivalent to...

We discuss global climate mitigation that builds on existing unilateral measures to cut emissions. We document and discuss the rationale for such unilateral measures argue that such measures have the potential to generate positive spillover effects both within and across countries. In a simple...