The paper proves that in two-player logit form symmetric contestswith concave success function, commitment to a particular strategydoes not increase a player's payo, while in contests with more thantwo players it does. The paper also provides a contest-like game inwhich commitment does not...

We exploit the aggregative structure of the public good modelto provide a simple analysis of the voluntary contribution game. Incontrast to the best response function approach, ours avoids the pro-liferation of dimensions as the number of players is increased, andcan readily analyse games...