read the VOX article “The Granular Origins or Real Business Cycle Comovements,” by Farid Toubal, Julien Martin, and Jörn Kleinert, which can be found here: http://voxeu.org/article/multinational-firms-and-business-cycles This article should feel somewhat familiar, at least in broad strokes, to points raised in the table and graphs at the very beginning of Lesson 5. To get the ball rolling, start by commenting on the following: do you agree or disagree with the authors’ arguments and why?  “Getting the ball rolling” is a guide for the first several posters.