TY - JOUR AU - Yanagawa,Noriyuki AU - Grossman,Gene M. TI - Asset Bubbles and Endogenous Growth JF - National Bureau of Economic Research Working Paper Series VL - No. 4004 PY - 1992 Y2 - February 1992 UR - http://www.nber.org/papers/w4004 L1 - http://www.nber.org/papers/w4004.pdf N1 - Author contact info: Noriyuki Yanagawa University of Tokyo Department of Economics Bunkyo-ku 113 Tokyo, JAPAN E-Mail: yanagawa@e.u-tokyo.ac.jp Gene M. Grossman International Economics Section Department of Economics Princeton University Princeton, NJ 08544 Tel: 609/258-4823 Fax: 609/258-1374 E-Mail: grossman@princeton.edu AB - We study the interaction between productive and nonproductive savings in an economy that grows in the long run due to endogenous improvements in labor productivity. As in the neoclassical growth setting with overlapping generations studied by Tirole (1985), asset bubbles can exist in an economy with endogenous growth provided they are not too large and that the growth rate in the equilibrium without bubbles exceeds the interest rate. Since the growth rate in the bubble-less equilibrium is endogenous, the existence condition reflects parameters of tastes and technology. We find that bubbles, when they exist, retard the growth of the economy, perhaps even in the long run, and reduce the welfare of all generations born after the bubble appears. ER -