This paper analyzes the use of alternative performance measures in an agency model in which contracting incorporates both formal and informal agreements. It is shown that under a proper use of verifiable and unverifiable performance measures, the two types of contracts are complements,...

I analyze the use of alternative performance measures using an agency model that incorporates both formal and informal agreements. I show that under the proper combination of verifiable and unverifiable performance measures, the two types of contract complement each other regardless of the...