Research Since 2018

Published Papers 2019-23

Growth and Trade Abstract

Growth and Trade with Frictions

Short Run Gravity Abstract

Short Run Gravity

Latent Exports: Almost Ideal Gravity and Zeros, Review of Economics & Statistics, forthcoming

Back to the Future: Gravity at Sixty

Unpublished Papers

Quantifying the Extensive Margin(s) of Trade

Commercial Rivalry as Seller Incidence Shifting: Non-parametric Accounting of the China Shock

Abstract

Intense commercial rivalry in manufacturing is quantified in this paper by novel non-parametric gravity sufficient statistics. Trade cost incidence on sellers falls with own sales while others’ seller incidence rises on average. China’s manufacturing seller incidence falls 7.6% yearly (terms of trade rise 8.2%) as China’s sales share quadruples over 2000-14. US seller incidence rises 4.1% yearly (terms of trade fall 4.7%) as US sales share halves. Industrial policy that raises US 2014 sales share 10% reduces seller incidence 6.0%. A trade elasticity equal to one closely fits non-parametric terms of trade statistics to CES gravity-predicted domestic trade shares.

Exchange Rates as Trade Frictions: Estimates and Policy Implications

Abstract

This paper improves on current treatment of exchange rate variation in quantitative trade models. Exchange rate changes with heterogeneous passthrough to buyers are embedded in the structural gravity model. Quantification on two digit annual bilateral trade data reveals real effects of exchange rate changes on producers that are substantial for some country-sector-time period observations. Real national income effects are small but not always negligible. Effective exchange Rates with Gravitas (ERGs) are introduced as theory-consistent indexes to guide potential policy remedies.

Software

software and data for gravity incidence

software to estimate gravity

software to calculate the TR

Incidence of Geography archive

Gravity with Gravitas archive

TRI model zip archive