If principals are allowed to choose between a reven ue sharing, a bonus and a trust contract, a large majority of experimental subjects choose the revenue sharing contract. We find that this choice is the most effi cient while at the same time being fair in the Paretian sense that on average ag ents are not worse off than in the other contracts. Furthermore, the distribution of e arnings is only mildly skewed towards the principal. We conclude that under reven ue sharing contracts concerns for fairness can go in hand with the use of monetar y incentives.