TY - JOUR AU - Alvarez,Fernando E. AU - Buera,Francisco J. AU - Lucas,Robert E., Jr. TI - Models of Idea Flows JF - National Bureau of Economic Research Working Paper Series VL - No. 14135 PY - 2008 Y2 - June 2008 UR - http://www.nber.org/papers/w14135 L1 - http://www.nber.org/papers/w14135.pdf N1 - Author contact info: Fernando E. Alvarez University of Chicago Department of Economics 1126 East 59th Street Chicago, IL 60637 Tel: 773/702-4412 Fax: 773/702-8490 E-Mail: f-alvarez1@uchicago.edu Francisco J. Buera Department of Economics University of California, Los Angeles 8283 Bunche Hall Office 8357 Mail Stop: 147703 Los Angeles, CA 90095 Tel: 310/825-8018 Fax: 310/825-9528 E-Mail: fjbuera@econ.ucla.edu Robert E. Lucas, Jr. Department of Economics The University of Chicago 1126 East 59th Street Chicago, IL 60637 Tel: 773/702-8179 Fax: 773/702-8490 E-Mail: relucas@midway.uchicago.edu AB - This paper introduces several variations of the Eaton and Kortum (1999) model of technological change and characterizes their long run implications. Both exogenous and endogenous growth examples are studied. ER -