We report the results of laboratory experiments that examine whether third-party contributions crowd out private giving to charity. Subjects play a single dictator game with a charity as the recipient. The subject chooses his preferred charity from a list. There are four treatment combinations: two initial allocations and two frames. Initial allocations are either US$18 for the subject and US$2 for the charity, or US$15 and US$5, respectively, and the subject is then given the opportunity to allocate additional funds if desired. The decision frame is also varied to affect subjects' perceptions of the task. In one frame, subjects are simply informed of the initial allocations between themselves and their chosen charity. In the other, subjects are told that their US$20 allocation has been taxed, and the amount allocated to their chosen charity. The structure of payoffs is identical in both frames. In the first frame, we see a level of crowding out that is close to zero, far less than other experimental studies; in the second frame, we observe nearly 100% crowding out. Bolton and Katok (1998). Subjects are paired with a charity of their own choosing selected from a list of 10. In one pair of treatments, we use a neutral frame, where third-party support for the charity is implemented in the form of a difference in initial allocations between the subject and his chosen charity. This frame allows for fiscal illusion; there is no explicit indication of the source of funding for the third-party transfer to the charities. The second frame introduces fiscal transparency: The source of the funding for the third-party transfer is an explicit tax on the subject's own endowment. This frame approximates the assumptions of theoretical models where agents know the source and target of third-party funding. Because the transfer comes from the subject's own initial endowment, our second frame represents an extreme form of fiscal transparency. We find no evidence of crowding out in the first frame, but rather an indication of a small amount of crowding in. In the second frame, we report almost complete crowding out.In the next section, we briefly review the theoretical and empirical studies. In Section 3, we review in greater detail the previous experimental studies. We then discuss the procedures of our experiment, Section 4, and our findings, Section 5. We conclude in Section 6.
Background and motivationTheoretical research suggests that government giving should be neutral in its effect on net contributions to nonprofit institutions under the condition that no one is taxed more than his pretax contribution to the charity (Warr, 1982(Warr, , 1983Roberts, 1984Roberts, , 1987Bergstrom et al., 1986). Under these conditions, the effect of any third-party transfer to the nonprofit can be neutralized by the donor's response. This conclusion is premised on the assumptions of fiscal transparency (i.e., donors are fully aware that government giving is financed by the taxes they pay) and that donors' benefit from the public good ari...