This dissertation contains three essays on risk aversion. In the first essay, we an-alyze comparative risk aversion in a new way, through a comparative statics problemin which, for a cost, agents can shift from an initial probability distribution towarda preferred distribution. The Ross...

In Chapter 2, we present a model that allows us to study the effect ofincreased competition among charities for donations, and show that it willresult in a lower provision of public goods. When charities get donations,they must pay two fundraising costs: a travel cost and an extra cost,...