This article puts forth collection action as a unifying theme for the confe
rence essays on arms trade, control, and production. For each of these topi
cs, collective action failures are related to group size and group composit
ion considerations. Other issues are also examined including the manner in
which individual contributions determine the overall level of the associate
d collective good - the so-called aggregation technology of public supply.
Based on alternative aggregation technologies, the game-theoretic underpinn
ings of these arms issues are explored.