TY - BOOK AU - Bordalo,Pedro AU - Gennaioli,Nicola AU - La Porta,Rafael AU - O'Brien,Matthew AU - Shleifer,Andrei ED - National Bureau of Economic Research. TI - Long Term Expectations and Aggregate Fluctuations T2 - NBER working paper series PY - 2023/// CY - Cambridge, Mass. PB - National Bureau of Economic Research KW - General KW - jelc KW - Business Fluctuations • Cycles KW - Financial Markets and the Macroeconomy KW - Macro-Based Behavioral Economics KW - Financial Crises N1 - August 2023; Hardcopy version available to institutional subscribers N2 - In line with Keynes' intuition, volatility in the stock market and in real economic activity are linked by expectations of long term profits. We show that analysts' optimism about the long term earnings growth of S&P 500 firms is associated with a near term boom in major US financial markets, real investment, and other business cycle indicators. The same optimism however predicts disappointing earnings growth and a contraction in financial markets and real activity one to two years later. Overreaction of measured long term profit expectations emerges as a promising mechanism for reconciling Shiller's excess volatility puzzle with the business cycle UR - https://www.nber.org/papers/w31578 UR - http://dx.doi.org/10.3386/w31578 ER -