"There is a large literature demonstrating that positive economic conditions increase support for incumbent candidates, but little understanding of how economic conditions affect preferences for parties and for particulars of their platforms. We ask how exogenous shifts to the value of...

We examine how economic incentives affect pro-social behavior through the analysis of a unique dataset with information on more than 14,000 American Red Cross blood drives. Our findings are consistent with blood donors responding to incentives in a "standard" way; offering donors economic...