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Working Paper
A Phillips curve with an Ss foundation
We develop an analytically tractable Phillips curve based on state-dependent pricing. We differ from the existing literature by considering a local approximation around a zero inflation steady state and introducing idiosyncratic shocks. The resulting Phillips curve is a simple variation of the conventional time-dependent Calvo formulation but with some important differences. First, the model is able to match the micro evidence on both the magnitude and timing of price adjustments. Second, holding constant the frequency of price adjustment, our state-dependent model exhibits greater ...
Discussion Paper
The social discount rate
In welfare theory it is standard to pick the consumption stream that maximizes the welfare of the representative agent. We argue against this position, and show that a benevolent social planner will generally place a greater weight on future consumption than does the representative agent.
Journal Article
Monetary policy analysis in models without money (commentary)
Working Paper
A North-South Model of Structural Change and Growth
This paper is motivated by a set of cross-country observations on economic growth, structural transformation, and investment rates in a large sample of countries, We observe a hump-shaped relationship between a country’s investment rate and its level of development, both within countries over time and across countries. Advanced economies reach their investment peak at a higher level of income and at an earlier point in time relative to emerging markets. We also observe the familiar patterns of structural change (a decline in the agricultural share and an increase in the services share, both ...
