Many auctions and procurement contests entail nontrivial bidding costs, which makes the bidders’ participation decisions endogenous to the auction design. We analyze the effect of different auction rules on potential bidders’ incentives to participate. We focus on first-price auctions with...

We introduce a collective experimentation problem where a continuum of agents choose the timing of irreversible actions under uncertainty and where public feedback from the actions arrives gradually over time. The leading application is the adoption of new technologies. The socially optimal...