Students of politics are familiar with two common forms of influence exercised by special interests over politicians: the provision of financial support to favored candidates during election campaigns, and the application of lobbying power when dealing with elected politicians. However, in...

We build a model of imperfect competition where firms can sell for cash or in-kind payments. Barter is indivisible, and there is no double coincidence of wants. Despite these deficiencies, barter emerges in equilibrium as a means of price discrimination if market power is sufficiently...