Newspaper-advertising stores appear to draw a higher share of customers after they advertise. We present a dynamic model of adverse selection to examine the interactions between new and used goods markets. We find that the used market never shuts down, the volume of trade can be large, and distortions are lower than previously thought. New cars prices can be higher under adverse selection than in its absence. An extension to several brands that differ in reliability leads to testable predictions of the effects of adverse selection.
Unreliable brands have steeper price declines and lower volumes of trade.
We contrast these predictions with those of a model where brands physically depreciate at different rates. This paper provides a theory of lobby formation within a framework in which trade policy is determined through political contributions. Under certain conditions, free trade turns out to be an equilibrium outcome either when the government has a high affinity for political contributions or when it cares a great deal about social welfare. Moreover, greater inequality in asset distribution results in a greater number of lobbies and, in most cases, more protection for each of these lobbies. Furthermore, industries with higher levels of capital stock, fewer capitalists, more inelastic demand, and smaller geographical dispersion are the ones that get organized.