frequency of donations. -- Incentives ; awards ; public good provision ; pro-social behavior ; public health ; social prestige …

There is a longstanding concern that material incentives might undermine prosocial motivation, leading to a decrease in … blood donations rather than an increase. This paper provides an empirical test of how material incentives affect blood …

. Implications for research and public policy are discussed. -- Incentives ; altruism ; public good provision ; pro-social behavior …

We examine how economic incentives affect pro-social behavior through the analysis of a unique dataset with information … incentives in a "standard" way; offering donors economic incentives significantly increases turnout and blood units collected … come to a drive but are ineligible to donate when incentives are offered. Further evidence from a small-scale field …