More than 2400 citations in Google Scholar:

I am among the 10 most highly cited young economists (out of 20,000):


November 2014, 104(11): 3600-34 | [PDF] | [Data/Code] | [Appendix]
American Economic Review

(with Ralph Ossa)
May 2013, 90(1): 177-80 | [PDF]
Journal of International Economics

The Collateral Channel: How Real Estate Shocks Affect Corporate Investment
October 2012, 102(6): 2381-2409 | [PDF] | [Data/Code] | [Appendix]
American Economic Review (lead article)

Exchange Rate Pass-Through in a Competitive Model of Pricing-to-Market
(with Raphael Auer)
February 2009, 41(s1): 151-75 | [PDF] | [Appendix]
Journal of Money, Credit and Banking

Distorted Gravity: The Intensive and Extensive Margins of International Trade
September 2008, 98(4): 1707-21 | [PDF] | [Appendix] 
American Economic Review

Preliminary version: September 2014 | [PDF]
Oxford Handbook of the Economics of Networks
edited by Yann Bramoulle, Andrea Galleoti and Bryan Rogers
Oxford University Press

Working Papers

The Gravity Equation in International Trade: an Explanation
August 2015 draft | [PDF] | [Appendix] | [older NBER WP19285]
R&R, Journal of Political Economy (resubmitted)
Lifting firms' financing frictions increases aggregate welfare by 5%.
Only 20% of the gains come from a better allocation of factors, while 80% come from capital accumulation.

Migrants, Ancestors and Investment
There are many German descendants in a US county if that county was attracting immigrants precisely at the same time when Germans were emigrating.
Using this instrumental variable over 130 years, we find a strong causal impact of ancestry on FDI, but little or no effect on trade.

Liquidity Constrained Exporters
July 2005 | [PDF] | [NBER WP19170]
If firms face fixed export costs, then liquidity constraints may prevent a firm from exporting: the health of its balance sheet matters for exporting. 
A currency devaluation hurts domestic firms balance sheets, and may hurt aggregate exports despite its pro-competitive effect.

The Dynamic Impact of Trade Opening with Heterogeneous Firms
June 2005 | [PDF]
When trade barriers are high, (too) many firms can survive, sheltered from foreign competition. 
After a trade liberalization, it takes a long time for those firms to exit. 
The economy may overheat for a while.

Technological Mismatch: a Model of International Trade in Goods and Ideas
May 2008 | [PDF]
Some people are good at inventing new technologies, and some at implementing them. Both don't always live in the same country.
When international trade in ideas is allowed, talented inventors team up with talented craftsmen, world production and world trade go up.

Work in Progress

Network Business Cycles

Economic Geography and International Inequality in General Equilibrium

Production Clusters