Strategic Incomplete Contracts: Theory and Experiments

Abstract

We develop a model of strategic contractual incompleteness that identifies conditions under which principals might omit even costlessly verifiable terms. We then use experiments to test comparative statics predictions of the model. While it is well known that verifiability imperfections can limit complete contracting, researchers know less about how the degree of imperfection affects endogenous incompleteness, particularly with repeat trading. In our baseline treatment with perfect verifiability, subjects overwhelmingly used complete contracts to conduct trades, achieving nearly first best outcomes. In our partial verifiability treatment with a reduced set of verifiable performance levels, t..