Noise Shocks and the Great Depression: A Structural Reassessment

Rizzo, Leonardo (2019): Noise Shocks and the Great Depression: A Structural Reassessment.

Abstract

Earlier empirical work finds that bad news unrelated to fundamentals had a prominent role in the Great Depression, suggesting that a very important element is missing in the existing analyses of the recession. We test whether noise shocks, once embedded in a general equilibrium framework, are relevant sources of variation during the Great Depression. We estimate a medium-scale DSGE model with a signal extraction on productivity on the Great Depression period. We find that noise shocks, while significant on impact, are not important sources of variation, particularly because of their low persistence: the estimated signal-to-noise ratio implies that agents quickly learn the true state of productivity. We argue that the earlier exploratory results are mainly driven by the omission of competing sources of disturbances. Our result can be read as a lower bound on the role of noise in the Great Depression—one that advances in identification through survey expectations, richer propagation via financial frictions, and departures from full-information rational expectations may revise upward.

• Item Type: MPRA Paper
• Language: English
• Keywords: Great Depression; noise shocks; news shocks; expectations; DSGE models; signal extraction; Bayesian estimation; business cycles; macroeconomic fluctuations; productivity shocks
• Subjects: E - Macroeconomics and Monetary Economics > E3 - Prices, Business Fluctuations, and Cycles > E32 - Business Fluctuations ; Cycles; N - Economic History > N1 - Macroeconomics and Monetary Economics ; Industrial Structure ; Growth ; Fluctuations > N12 - U.S. ; Canada: 1913-

References

Ascari, G., Beck-Friis, P., Florio, A., and Gobbi, A. (2023). Fiscal foresight and the effects of government spending: It’s all in the monetary–fiscal mix. Journal of Monetary Economics, 134, 1–15.

Balke, N. and Gordon, R. J. (1986). Appendix B: Historical data. In The American Business Cycle: Continuity and Change, 781–850. University of Chicago Press.

Barro, R. J. and King, R. G. (1984). Time-separable preferences and intertemporal-substitution models of business cycles. The Quarterly Journal of Economics, 99(4), 817–839.

Barsky, R. B. and Sims, E. R. (2012). Information, animal spirits, and the meaning of innovations in consumer confidence. American Economic Review, 102(4), 1343–1377.

Beaudry, P. and Portier, F. (2004). An exploration into Pigou’s theory of cycles. Journal of Monetary Economics, 51(6), 1183–1216.

Beaudry, P. and Portier, F. (2006). Stock prices, news, and economic fluctuations. American Economic Review, 96(4), 1293–1307.

Beaudry, P. and Portier, F. (2014). News-driven business cycles: Insights and challenges. Journal of Economic Literature, 52(4), 993–1074.

Benati, L., Eisenstat, E., and Koop, G. (2018). Can news and noise shocks be disentangled? Technical report, Universität Bern, Departement Volkswirtschaft.

Benhima, K. and Poilly, C. (2021). Does demand noise matter? Identification and implications. Journal of Monetary Economics, 117, 278–295.

Bernanke, B. S., Gertler, M., and Gilchrist, S. (1999). The financial accelerator in a quantitative business cycle framework. Handbook of Macroeconomics, 1, 1341–1393.

Blanchard, O. J., L’Huillier, J.-P., and Lorenzoni, G. (2013). News, noise, and fluctuations: An empirical exploration. American Economic Review, 103(7), 3045–3070.

Calvo, G. A. (1983). Staggered prices in a utility-maximizing framework. Journal of Monetary Economics, 12(3), 383–398.

Cass, D. and Shell, K. (1983). Do sunspots matter? Journal of Political Economy, 91(2), 193–227.

Chahrour, R. and Ulbricht, R. (2023). Robust predictions for DSGE models with incomplete information. American Economic Journal: Macroeconomics, 15(1), 173–208.

Chari, V. V., Kehoe, P. J., and McGrattan, E. R. (2007). Business cycle accounting. Econometrica, 75(3), 781–836.

Christiano, L., Ilut, C. L., Motto, R., and Rostagno, M. (2010). Monetary policy and stock market booms. NBER Working Paper.

Christiano, L. J., Eichenbaum, M., and Evans, C. L. (2005). Nominal rigidities and the dynamic effects of a shock to monetary policy. Journal of Political Economy, 113(1), 1–45.

Cole, H. L. and Ohanian, L. (1999). The Great Depression in the United States from a neoclassical perspective. Federal Reserve Bank of Minneapolis Quarterly Review.

Cole, H. L. and Ohanian, L. E. (2000). Re-examining the contributions of money and banking shocks to the U.S. Great Depression. NBER Macroeconomics Annual, 15, 183–227.

Cole, H. L. and Ohanian, L. E. (2004). New Deal policies and the persistence of the Great Depression: A general equilibrium analysis. Journal of Political Economy, 112(4), 779–816.

Cole, H. L., Ohanian, L. E., and Leung, R. (2005). Deflation and the international Great Depression: A productivity puzzle. Technical report, National Bureau of Economic Research.

DeLong, J. B. (2001). Macroeconomics. McGraw-Hill.

Dighe, R. S. (1997). Wage rigidity in the Great Depression: Truth? Consequences? Research in Economic History, 17, 85–134.

Eggertsson, G. B. and Pugsley, B. (2006). The mistake of 1937: A general equilibrium analysis. CFS Working Paper.

Eichengreen, B. J. (1996). Golden Fetters: The Gold Standard and the Great Depression, 1919–1939. Oxford University Press.

Ellison, M., Lee, S. S., and O’Rourke, K. H. (2024). The ends of 27 big depressions. American Economic Review, 114(1), 134–168.

Erceg, C. J., Henderson, D. W., and Levin, A. T. (2000). Optimal monetary policy with staggered wage and price contracts. Journal of Monetary Economics, 46(2), 281–313.

Forni, M., Gambetti, L., Lippi, M., and Sala, L. (2017). Noisy news in business cycles. American Economic Journal: Macroeconomics, 9(4), 122–152.

Friedman, M. and Schwartz, A. J. (1963). A Monetary History of the United States, 1867–1960. Princeton University Press.

Fujiwara, I., Hirose, Y., and Shintani, M. (2011). Can news be a major source of aggregate fluctuations? A Bayesian DSGE approach. Journal of Money, Credit and Banking, 43(1), 1–29.

Gordon, R. J. and Krenn, R. (2010). The end of the Great Depression 1939–41: Policy contributions and fiscal multipliers. Technical report, National Bureau of Economic Research.

Görtz, C. and Tsoukalas, J. D. (2017). News and financial intermediation in aggregate fluctuations. Review of Economics and Statistics, 99(3), 514–530.

Görtz, C., Tsoukalas, J. D., and Zanetti, F. (2022). News shocks under financial frictions. American Economic Journal: Macroeconomics, 14(4), 210–243.

Guo, J. and Han, Z. (2025). Time-varying government spending foresight. Journal of Economic Dynamics and Control, 173, 105067.

Hanes, C. (1996). Changes in the cyclical behavior of real wage rates, 1870–1990. The Journal of Economic History, 56(4), 837–861.

Harrison, S. G. and Weder, M. (2006). Did sunspot forces cause the Great Depression? Journal of Monetary Economics, 53(7), 1327–1339.

Hellwig, C. and Venkateswaran, V. (2025). Dispersed information, nominal rigidities and monetary business cycles: A Hayekian perspective. Journal of Monetary Economics, 155, 103843.

Herrera, L. and Vázquez, J. (2023). Interpreting structural shocks and assessing their historical importance. The B.E. Journal of Macroeconomics, 23(1), 375–425.

Herrera, L. and Vázquez, J. (2025). Learning from news. Journal of Macroeconomics, 85, 103690.

Hirose, Y. and Kurozumi, T. (2021). Identifying news shocks with forecast data. Macroeconomic Dynamics, 25(6), 1442–1471.

Jaimovich, N. and Rebelo, S. (2009). Can news about the future drive the business cycle? American Economic Review, 99(4), 1097–1118.

Jones, E. B. (1963). New estimates of hours of work per week and hourly earnings, 1900–1957. The Review of Economics and Statistics, 374–385.

Kabiri, A., James, H., Landon-Lane, J., Tuckett, D., and Nyman, R. (2023). The role of sentiment in the U.S. economy: 1920 to 1934. Economic History Review, 76(1), 3–30.

Kendrick, J. W. (1961). Productivity Trends in the United States. Princeton University Press.

Keynes, J. M. (1936). The General Theory of Employment, Interest, and Money. Macmillan.

Khan, H. and Tsoukalas, J. (2012). The quantitative importance of news shocks in estimated DSGE models. Journal of Money, Credit and Banking, 44(8), 1535–1561.

Levine, P., Pearlman, J., Yang, B., and Pham, S. (2025). Recent developments in DSGE modelling: Beyond FIRE. South Asian Journal of Macroeconomics and Public Finance, 14(1), 11–43.

L’Huillier, J.-P. and Yoo, D. (2017). Bad news in the Great Depression, the Great Recession, and other U.S. recessions: A comparative study. Journal of Economic Dynamics and Control, 81, 79–98.

Lorenzoni, G. (2009). A theory of demand shocks. American Economic Review, 99(5), 2050–2084.

Maćkowiak, B. and Wiederholt, M. (2025). Rational inattention and the business cycle effects of productivity and news shocks. American Economic Journal: Macroeconomics, 17(1), 274–309.

Milani, F. (2023). Expectational data in DSGE models. In R. Bachmann, G. Topa, and W. van der Klaauw, eds., Handbook of Economic Expectations, 541–567. Elsevier.

Milani, F. and Rajbhandari, A. (2020). Observed expectations, news shocks, and the business cycle. Research in Economics, 74(2), 95–118.

Miyamoto, W. and Nguyen, T. L. (2020). The expectational effects of news in business cycles: Evidence from forecast data. Journal of Monetary Economics, 116, 184–200.

Ohanian, L. E. (2001). Why did productivity fall so much during the Great Depression? American Economic Review, 91(2), 34–38.

Pfeifer, J. (2013). A guide to specifying observation equations for the estimation of DSGE models. Technical report, University of Cologne.

Pigou, A. C. (1927). Industrial Fluctuations. Macmillan.

Romer, C. D. (1993). The nation in depression. Journal of Economic Perspectives, 7(2), 19–39.

Rychalovska, Y., Slobodyan, S., and Wouters, R. (2026). Professional survey forecasts and expectations in DSGE models. Journal of Monetary Economics, 158, 103885.

Schmitt-Grohé, S. and Uribe, M. (2012). What’s news in business cycles. Econometrica, 80(6), 2733–2764.

Smets, F. and Wouters, R. (2003). An estimated dynamic stochastic general equilibrium model of the euro area. Journal of the European Economic Association, 1(5), 1123–1175.

Temin, P. (1976). Did Monetary Forces Cause the Great Depression? W. W. Norton.

van Binsbergen, J. H., Bryzgalova, S., Mukhopadhyay, M., and Sharma, V. (2024). Almost 200 years of news-based economic sentiment. NBER Working Paper 32026, National Bureau of Economic Research.