作者：Gertler, Mark; Leahy, John
作者单位：New York University; National Bureau of Economic Research
摘要：We develop an analytically tractable Phillips curve based on state-dependent pricing. We consider a local approximation around a zero inflation steady state and introduce infrequent idiosyncratic shocks. The resulting Phillips curve is a simple variant of the conventional time-dependent Calvo formulation with important differences. First, the model is able to match the micro evidence on the magnitude and timing of price adjustments. Second, our state-dependent model exhibits greater flexibilit...
作者：Vogel, Jonathan
作者单位：University of California System; University of California Los Angeles
摘要：I model endogenous horizontal and vertical product differentiation with arbitrarily many heterogeneous firms. Firms are asymmetric in that they differ in their marginal costs. I prove that under an equilibrium refinement, all economically relevant firm outcomes are uniquely determined across all strict subgame perfect Nash equilibria. There are two central results. First, a firm's price, market share, and profit are independent of its neighbors' marginal costs, conditional on the average margi...
