A production function model with efficient bargaining between oligopolistic firms and unions is developed to distinguish between product market power and union power in capturing economic rents. The model is formalized using the generalized Nash bargaining solution and is empirically tested on...

A mark-up model for export and domestic pricing is developed using the dual approach of cost functions and taking explicitly into account the possibility of (short-run) capacity constraints. The model is applied on a panel of Belgian firms to infer product market power on both domestic and...