TY - JOUR AU - White,Eugene N. TI - Bubbles and Busts: The 1990s in the Mirror of the 1920s JF - National Bureau of Economic Research Working Paper Series VL - No. 12138 PY - 2006 Y2 - April 2006 UR - http://www.nber.org/papers/w12138 L1 - http://www.nber.org/papers/w12138.pdf N1 - Author contact info: Eugene N. White Department of Economics Rutgers University 75 Hamilton Street New Brunswick, NJ 08901-1248 Tel: 732-932-7363 Fax: 732/932-7416 E-Mail: white@economics.rutgers.edu AB - This paper surveys the twentieth century booms and crashes in the American stock market, focusing on a comparison of the two most similar events in the 1920s and 1990s. In both booms, claims were made that they were the consequence a %u201Cnew economy%u201D or %u201Cirrational exuberance.%u201D Neither boom can be readily explained by fundamentals, represented by expected dividend growth or changes in the equity premium. The difficulty of identifying the fundamentals implies that central banks would not be successful in preventing pre-emptive policies, although they still would have a critical role to play in preventing crashes from disrupting the payments system or sparking an intermediation crisis. ER -