The heterogeneity of services in the freight transport market and the presence of imperfect information motivate the development of an empirical model for detecting market imperfection and bargaining powers of the two agents concluding a contract. The fact that agents typically bargain...

In this paper, we propose an empirical method to measure the market imperfection and the bargaining power of the agents, by extending the methods of frontier analysis. A case study in the field of freight transport illustrates the proposed method.