counterproductive when they diminish altruism, ethical norms and other social preferences. Evidence from 51 experimental studies …

This paper studies how imposing norms on contribution behavior affects individuals' intrinsic motivation. We consider … legally a tax. We design a randomized field experiment with treatments informing individuals that the levy is a tax. We …, communicating the legal norm results in a significant crowd-out of intrinsic motivation. In contrast, strongly intrinsically …

-interest, providing strong evidence for pocketbook voting. However, social preferences like altruism, public good considerations and …

the effects by income source can be explained by social norms. Our first experiment induces random variation in both … earned income and windfall bonuses and shows that only bonuses increases charitable donations. The second experiment uses an … elicited in the second experiment match the donation patterns in the first experiment both overall and across subject …

This chapter presents some insights from basic behavioural research on the role of human pro-social motivation to … motivation can sustain cooperation if enough people cooperate but can jeopardise social order if many others follow selfish …

We present the first randomized survey experiment in the context of tax compliance to assess the role of social norms …

-Economic Panel Study, which contains data on self-reported altruism, sector of employment, and donations to charity for more than 7 …