Article history: Received 16 June 2009 Accepted 19 April 2010 Available online xxxx JEL classification: E31 E50 E52 E58 F41

Article history: Received 28 March 2013 Received in revised form 4 March 2014 Accepted 4 March 2014 Available online 15 March 2014 JEL classification: F41

Article history: Received 1 June 2013 Received in revised form 11 March 2015 Accepted 12 March 2015 Available online 21 March 2015 JEL classification: F21 F41 G15

We model the world economy as one system of endogenous input-output relationships subject to frictions and study how world’s structure GDP change due changes in frictions. derive a sufficient statistic identify from observed matrix, which we fully match for year 2011. show internal impact whole that they have much larger effect on than external also use our approach role during Great Recession ...

This paper evaluates the hypothesis that during the 2008-2009 collapse in international trade, imports of higher quality goods experienced larger reductions compared to low-quality imports, using data on U.S. imports disaggregated by HS-10 product category and source country. We find little, if any, robust econometric evidence in support of this hypothesis. JEL Classifications: F41, F42

This paper reformulates the issue of the international coordination of monetary policy in the framework of an extended game with observable delay, where governments are required to set the timing of their respective actions before proceeding to the actual choice of their monetary policies. This allows to shrink signi...cantly the set of equilibria. JEL Classi...cation: D43, E61, F41, F42