Abstract
We report the results of an experiment investigating the provision of a step-level collective good. This experiment compares the behavior of subjects in a public good game with the behavior of subjects in a club good game. In the club good game, players who do not contribute the membership fee are excluded from the consumption of the collective good. The introduction of a small membership fee has surprisingly strong effects: it increases the provision of the collective good, delays provision failures and increases the number of contributors. The experiment also reveals the limits of the introduction of a small fee. At a high threshold level, the membership fee no longer ensures successful provision.