Expansion of Trade at the Extensive Margin: A General Gainsfrom-Trade Result and Illustrative Examples,” NBER, Working Paper 15926

This paper is a revision of a long-stalled earlier version circulated and presented in 2006 and 2007 under the title “Expansion of trade at the extensive margin: welfare and trade-volume consequences”. The paper was presented at the Athens ETSG and at CESifo Munich in September 2007 and in a couple of other places I can’t remember. I appreciate comments received then and added comments, suggestions and references are most welcome now. The views expressed herein are those of the author and do not necessarily reflect the views of the National Bureau of Economic Research. NBER working papers are circulated for discussion and comment purposes. They have not been peer-reviewed or been subject to the review by the NBER Board of Directors that accompanies official NBER publications