This paper analyses the sources of buyer power and its effect on sellers' investment. We show that a retailer extracts a larger surplus from the negotiation with an upstream manufacturer the more it is essential to the creation of total surplus. In turn, this depends on the rivalry between...

This paper analyses the sources of buyer power and its effect on sellers’ investment in quality improvements. In our model retailers make take-it-or-leave-it offers to a producer and each of them obtains its marginal contribution to total profits (gross of sunk costs). In turn, this depends on...