We ran an experiment with 24 subjects for each treatment. They had to
choose how to invest their initial endowment. They had the opportunity to
invest this sum both in a public good and in a private good. We ran
different treatments where the game was repeated for 8 periods. If I want
to compare the average contribution to the public good in two different
treatments, is the Mann-Whitney test suitable (we have different players
in each treatment)? Should the Jonckheere test provide a better
performance? Thank you. Stefania
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