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Report
Quantitative Trade Models: Developments and Challenges
Applied general equilibrium (AGE) models, which feature multiple countries or regions, multiple sectors, and input-output linkages across sectors in a Walrasian general equilibrium framework, have been the dominant tool for evaluating the impact of trade liberalization since the 1980s. We provide an overview of the historical development of AGE models and a guide as to how they are used to perform policy analysis. We then review and document shortcomings in the performance of AGE models in predicting the sectoral effects of past trade reforms, that is, we show that AGE models often perform ...
Report
Is the Green Transition Inflationary?
We develop a multi-sector New Keynesian model to analyze the inflationary effects of climate policies. Climate policies need not be inflationary, but can generate an inflation-output tradeoff whose size depends on how flexible prices are in the “dirty” and “green” sectors relative to the rest of the economy, and on whether climate policies consist of taxes or subsidies. A quantitative version of the model calibrated to U.S. data on input-output linkages and sectoral heterogeneity in emissions and price stickiness suggests that an increase in carbon taxes would generate a sizable ...
Working Paper
Value Added and Productivity Linkages Across Countries
What is the relationship between international trade and business cycle synchronization? Using data from 40 countries, we find that GDP comovement is significantly associated with trade in intermediate inputs but not with trade in final goods. Motivated by this new fact, we build a model of international trade that is able to replicate the empirical trade-comovement slope, offering the first quantitative solution for the Trade Comovement Puzzle. The model relies on (i) global value chains, (ii) price distortions due to monopolistic competition and (iii) fluctuations in the mass of firms ...
Working Paper
The Propagation of Monetary Policy Shocks in a Heterogeneous Production Economy
Realistic heterogeneity in price rigidity interacts with heterogeneity in sectoral size and input-output linkages in the transmission of monetary policy shocks. Quantitatively, heterogeneity in price stickiness is the central driver for real effects. Input-output linkages and consumption shares alter the identity of the most important sectors to the transmission. Reducing the number of sectors decreases monetary non-neutrality with a similar impact response of inflation. Hence, the initial response of inflation to monetary shocks is not sufficient to discriminate across models and ignoring ...
Working Paper
Global Trade and GDP Co-Movement
We revisit the association between trade and GDP comovement for 135 countries from 1970 to 2009. Guided by a simple theory, we introduce two notions of trade linkages: (i) the usual direct bilateral trade index and (ii) new indexes of common exposure to third countries capturing the role of similarity in trade networks. Both measures are economically and statistically associated with GDP correlation, suggesting an additional channel through which GDP fluctuations propagate through trade linkages. Moreover, high income countries become more synchronized when the content of their trade is ...
Working Paper
The Propagation of Monetary Policy Shocks in a Heterogeneous Production Economy
Realistic heterogeneity in price rigidity interacts with heterogeneity in sectoral size and input-output linkages in the transmission of monetary policy shocks. Quantitatively, heterogeneity in price stickiness is the central driver for real effects. Input-output linkages and consumption shares alter the identity of the most important sectors to the transmission. Reducing the number of sectors decreases monetary non-neutrality with a similar impact response of inflation. Hence, the initial response of inflation to monetary shocks is not sufficient to discriminate across models and ignoring ...
Working Paper
Trade and Labor Market Dynamics: General Equilibrium Analysis of the China Trade Shock
We develop a dynamic trade model with spatially distinct labor markets facing varying exposure to international trade. The model captures the role of labor mobility frictions, goods mobility frictions, geographic factors, and input-output linkages in determining equilibrium allocations. We show how to solve the equilibrium of the model and take the model to the data without assuming that the economy is at a steady state and without estimating productivities, migration frictions, or trade costs, which can be difficult to identify. We calibrate the model to 22 sectors, 38 countries, and 50 U.S. ...
Report
Intangible Capital and Measured Productivity
Because ?rms invest heavily in R&D, software, brands, and other intangible assets?at a rate close to that of tangible assets?changes in measured GDP, which does not include all intangible investments, understate the actual changes in total output. If changes in the labor input are more precisely measured, then it is possible to observe little change in measured total factor productivity (TFP) coincidentally with large changes in hours and investment. This mismeasurement leaves business cycle modelers with large and unexplained labor wedges accounting for most of the ?uctuations in aggregate ...
Working Paper
Monetary policy through production networks: evidence from the stock market
Monetary policy shocks have a large impact on stock prices during narrow time windows centered around press releases by the FOMC. We use spatial autoregressions to decompose the overall effect of monetary policy shocks into a direct effect and a network effect. We attribute 50 to 85 percent of the overall impact to network effects. The decomposition is a robust feature of the data, and we confirm large network effects in realized cash-flow fundamentals. A simple model with intermediate inputs allows a structural interpretation of our empirical strategy. Our findings indicate that production ...
Working Paper
Upstream, Downstream & Common Firm Shocks
We develop a multi-sector DSGE model to calculate upstream and downstream industry exposure networks from U.S. input-output tables and test the relative importance of shocks from each direction by comparing these with estimated networks of firms? equity return responses to one another. The correlations between the upstream exposure and equity return networks are large and statistically significant, while the downstream exposure networks have lower ? but still positive ? correlations that are not statistically significant. These results suggest a low short-term elasticity of substitution ...