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%T Strategic behavior and learning in repeated voluntary-contribution experiments %A Muller, Laurent %A Sefton, Martin %A Steinberg, Richard %A Vesterlund, Lise %J Journal of Economic Behavior & Organization %N 3-4 %P 782-793 %V 67 %D 2008 %K Voluntary contributions; Cooperation %= 2011-08-16T17:11:00Z %~ http://www.peerproject.eu/ %> https://nbn-resolving.org/urn:nbn:de:0168-ssoar-263127 %X Voluntary contribution experiments systematically find that contributions decline over time. We use a two-stage voluntary contribution game to investigate whether this decrease is caused by learning or strategic behavior. Using a strategy method we find a robust pattern of declining contributions: contributions in stage 2 are 45 percent lower than in stage 1. Repeating the game five times we find that experience generates a smaller decline in contributions: stage 1 contributions decrease by around 7 percent per game. Finally we find no significant differences between the strategy and direct-response method, which suggests that our results help explain behavior in the latter. %G en %9 journal article %W GESIS - http://www.gesis.org %~ SSOAR - http://www.ssoar.info