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Working Paper
Relative Price Shocks and Inflation
Inflation is determined by interaction between real factors and monetary policy. Among the most important real factors are shocks to the supply and demand for different components of the consumption basket. We use an estimated multi-sector New Keynesian model to decompose the behavior of U.S. inflation into contributions from sectoral (or "relative price") shocks, monetary policy shocks, and aggregate real shocks. The model is estimated by maximum likelihood with U.S. data for the post-1994 period in which inflation and the monetary policy regime appeared to be stable. In addition to ...
Working Paper
The Aggregate Effects of Sectoral Shocks in an Open Economy
We study the aggregate effects of sectoral productivity shocks in a multisectoral New Keynesian open-economy model that allows for asymmetric input-output linkages, both within and between countries, as well as for heterogeneity in sectoral Calvo-type price stickiness. Asymmetries in the international production network play a key role in the model’s ability to produce large domestic effects of foreign sectoral supply shocks and large differential effects of domestic shocks and global shocks. Larger trade openness and substitutability between domestic inputs and foreign inputs can also ...
Working Paper
How Do Sectoral Shocks Shape Future GDP?
A production sector's size, as measured by its Domar weight, captures the contemporaneous aggregate effect of its productivity shocks. However, the presence of investment means that these aggregate effects can persist over time. We derive a dynamic generalization of Hulten's theorem in an environment that features sectoral linkages in both intermediate-inputs and investment. This generalization follows from production efficiency alone, and decomposes each sector's Domar weight into an impact and a propagation component. The relative size of these components then determines how persistent the ...