@article {441171, title = {Intrinsic Bubbles: The Case of Stock Prices}, journal = {American Economic Review}, volume = {81}, number = {5}, year = {1991}, note = { Revised from NBER Working Paper No. 3091, March 1992. Reprinted in Speculation and Financial Markets, edited by M. Taylor and L. Gallagher. Cheltenham, U.K.: Edward Elgar Publishing, 2001. }, month = {Dec 1991}, pages = {1189{\textendash}1214}, author = {Kenneth A. Froot and M. Obstfeld} }