d conformity: Evidence from voluntary contributions to a national park in Costa Rica. Journal of Public Economics, 92(5), 1047-1060. Andreoni, J., & Petrie, R. (2004). Public goods experiments without confidentiality: A glimpse into fund-raising. Journal of Public Economics, 88(7), 1605-1623. Andreoni,

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when nobody has a good time.” After the hearing, Petri was inspired by the congresswoman who observed, “