quot;Buyer-optionquot; contracts, in which the buyer selects the product variant to be traded and chooses whether to accept delivery, are often used to solve holdup problems. We present a simple game that focuses sharply on subgames in which the buyer proposes inefficient actions in order to...

I study a repeated principal-agent game with long‐term output contracts that can be renegotiated at will. Actions are observable but not contractible, so they can only be incentivized through implicit agreements formed in equilibrium. I show that contract renegotiation is a powerful tool for...