What Explains Global Inflation

ha, jongrim and Kose, Ayhan M. and Ohnsorge, Franziska and Yilmazkuday, Hakan (2023): What Explains Global Inflation. Published in:

Abstract

This paper examines the drivers of fluctuations in global inflation, defined as a common factor across monthly headline consumer price index (CPI) inflation in G7 countries, over the past half-century. We estimate a Factor-Augmented Vector Autoregression model where a wide range of shocks, including global demand, supply, oil price, and interest rate shocks, are identified through narrative sign restrictions motivated by the predictions of a simple dynamic general equilibrium model. We report three main results. First, oil price shocks followed by global demand shocks explained the lion’s share of variation in global inflation. Second, the contribution of global demand and oil price shocks increased over time, from 56 percent during 1970-1985 to 65 percent during 2001-2022, whereas the importance of global supply shocks declined. Since the pandemic, global demand and oil price shocks have accounted for most of the variation in global inflation. Finally, oil price shocks played a much smaller role in global core CPI inflation variation, for which global supply shocks were the main source of variation. These results are robust to various sensitivity exercises, including alternative definitions of global variables, different samples of countries, and additional narrative restrictions.

• Item Type: MPRA Paper
• Language: English
• Keywords: Oil prices; demand shocks; supply shocks; interest rate shocks
• Subjects: E - Macroeconomics and Monetary Economics > E3 - Prices, Business Fluctuations, and Cycles > E31 - Price Level ; Inflation ; Deflation; E - Macroeconomics and Monetary Economics > E3 - Prices, Business Fluctuations, and Cycles > E32 - Business Fluctuations ; Cycles; Q - Agricultural and Natural Resource Economics ; Environmental and Ecological Economics > Q4 - Energy > Q43 - Energy and the Macroeconomy

References

Afrouzi, H., M. Halac, K. Rogoff, and P. Yarad. 2023. “Monetary Policy Without Commitment.” NBER working paper 31207.

Altansukh, G., R. Becker, G. J. Bratsiotis, and D. R. Osborn. 2017. “What Is the Globalisation of Inflation?” Journal of Economic Dynamics and Control 74 (January): 1-27.

Antolín-Díaz, J., and Rubio-Ramírez, J. F. 2018. “Narrative sign restrictions for SVARs.” American Economic Review 108 (10), 2802-29.

Aucremanne L., and L. Wouters. 1999. “A Structural VAR Approach to Core Inflation and Its Relevance for Monetary Policy.” Bank for International Settlements, Basel.

Auer, R.A., Levchenko, A. A. and P. Sauré. 2019. “International Inflation Spillovers through Input Linkages.” Review of Economics and Statistics 101 (3): 507-21.

Baffes, J., M. A. Kose, F. Ohnsorge, and M. Stocker. 2015. “The Great Plunge in Oil Prices—Causes, Consequences, and Policy Responses.” Policy Research Note 1, World Bank, Washington, DC.

Ball, L., D. Leigh, P. Mishra. 2022. “Understanding U.S. Inflation During the COVID Era.” BPEA Conference Drafts, Brookings Paper on Economic Activity, Washington, DC.

Baumeister, C., and G. Peersman. 2013. “Time-Varying Effects of Oil Supply Shocks on the US Economy.” American Economic Journal: Macroeconomics 5 (4): 1-28.

Baumeister, C., D. Korobilis, and T.K. Lee. 2020. “Energy Markets and Global Economic Conditions,” Review of Economics and Statistics. 104 (4): 828-44.

Baumeister, C. and J.D. Hamilton. 2019. “Structural Interpretation of Vector Autoregressions with Incomplete Identification: Revisiting the Role of Oil Supply and Demand Shocks.” American Economic Review 109 (5): 1873-1910.

Bekaert, G., E. Engstrom, and A. Ermolov. 2021. “Macro Risks and The Term Structure of Interest Rates.” Journal of Financial Economics 141(2): 479-504.

Blanchard, O.J. and J. Galí. 2007. “The Macroeconomic Effects of Oil Price Shocks: Why are the 2000s so different from the 1970s?” In International Dimensions of Monetary Policy (pp. 373-421). University of Chicago Press.

Bu, C., J. Rogers and W. Wu. 2021. “A Unified Measure of Fed Monetary Policy Shocks.” Journal of Monetary Economics 118: 331-49.

Calvo, G.A., 1983. “Staggered prices in a utility-maximizing framework.” Journal of Monetary Economics 12 (3): 383-98.

Carriero, A. and F. Corsello and M. Marcellino. 2019. “The Global Component of Inflation Volatility.” CEPR Discussion Paper No. DP13470.

Charnavoki, V., and J. J. Dolado. 2014. “The Effects of Global Shocks on Small Commodity- Exporting Economies: Lessons from Canada.” American Economic Journal: Macroeconomics 6 (2): 207-37.

Choi, S., D. Furceri, P. Loungani, S. Mishra, and M. Poplawski-Ribeiro. 2018. “Oil prices and Inflation Dynamics: Evidence from Advanced and Developing economies.” Journal of International Money and Finance 82: 71-96.

Clarida, R., J. Gali, and M. Gertler. 1999. “The Science of Monetary Policy: A New Keynesian Perspective.” Journal of Economic Literature 37 (4): 1661-1707.

Ciccarelli, M. and Mojon, B., 2010. “Global inflation.” The Review of Economics and Statistics 92 (3): 524-35.

Del Negro, M., S. Eusepi, M. P. Giannoni, A. M. Sbordone, A. Tambalotti, M. Cocci, and M. Linder. 2013. “The FRBNY DSGE Model.” Federal Reserve Board of New York Staff Report 647.

Del Negro, M., A. Gleich, S. Goyal, A. Johnson, and A. Tambalotti. 2022. “Drivers of Inflation: The New York Fed DSGE Model’s Perspective,” Federal Reserve Bank of New York Liberty Street Economics, March 1, 2022.

Eickmeier, S. and B. Hofmann, 2022. “What Drives Inflation? Disentangling Demand and Supply Factors.” BIS Working Papers 1047, Bank for International Settlements.

Feldkircher, M. and P. L. Siklos. 2019. “Global Inflation Dynamics and Inflation Expectations.” International Review of Economics and Finance 64: 217-241.

Forbes, K.J., I. Hjortsoe, and T. Nenova. 2018. “The Shocks Matter: Improving Our Estimates of Exchange Rate Pass-Through.” Journal of International Economics 114 (September): 255-275.

Forbes, K. 2019. “Inflation Dynamics: Dead, Dormant, or Determined Abroad?” Brookings Papers on Economic Activity 2019 (Fall): 257-319.

Fry, R. and A. Pagan. 2011. “Sign Restrictions in Structural Vector Autoregressions: A Critical Review.” Journal of Economic Literature 49(4): 938-960.

Gali, J. and T. Monacelli. 2005. “Monetary Policy and Exchange Rate Volatility in a Small Open Economy.” The Review of Economic Studies 72(3): 707-34.

Gambetti, L., E. Pappa, and F. Canova. 2008. “The Structural Dynamics of U.S. Output and Inflation: What Explains the Changes?” Journal of Money, Credit and Banking 40(2‐3): 369-88.

Gertler, M. and P. Karadi. 2015. “Monetary Policy Surprises, Credit Costs, and Economic Activity.” American Economic Journal: Macroeconomics 7 (1): 44-76.

Ha, J., M.A. Kose, and F. Ohnsorge. 2023. “One-stop Source: A Global Database of Inflation.” Journal of International Money and Finance vol. 137(C).

Hamilton, J. D. 2011. “Historical Oil Shocks.” NBER Working Paper 16790, National Bureau of Economic Research, Cambridge, MA.

Hou, K., D.C. Mountain, and T. Wu. 2016. “Oil price Shocks and Their Transmission Mechanism in an Oil-exporting Economy: A VAR Analysis Informed by a DSGE Model.” Journal of International Money and Finance 68: 21-49.

Hristov, N., O. Hülsewig, and T. Wollmershäuser. 2012. “Loan Supply Shocks during the Financial Crisis: Evidence for the Euro Area.” Journal of International Money and Finance 31 (3): 569-92.

Ilzetzki, E., C. M. Reinhart, and K. S. Rogoff. 2020. “Will the Secular Decline in Exchange Rate and Inflation Volatility Survive COVID-19?” NBER Working Paper w28108, National Bureau of Economic Research.

Jurado, K., S. C. Ludvigson, and S. Ng. 2015. “Measuring Uncertainty.” American Economic Review 105 (3): 1177-1216.

Kabukçuoğlu, A., and E. Martínez-García. 2018. “Inflation as a Global Phenomenon—Some Implications for Inflation Modeling and Forecasting.” Journal of Economic Dynamics and Control 87 (C): 46-73.

Kabundi, A. N. and F. Ohnsorge. 2020. “Implications of Cheap Oil for Emerging Markets” Policy Research Working Paper 9403, World Bank, Washington, DC.

Kose, M. A., Otrok, C. and Whiteman, C.H., 2008. “Understanding the Evolution of World Business Cycles.” Journal of international Economics 75 (1): 110-30.

Kose, M. A. and M. Terrones. 2015. Collapse and Revival: Understanding Global Recessions and Recoveries. International Monetary Fund, Washington, DC.

Kose, M. A., H. Matsuoka, U. Panizza, and D. Vorisek. 2018. “Inflation Expectations: Review and Evidence,” in Inflation in Emerging and Developing Economies: Evolution, Drivers, and Policies, edited by Ha, J., M. A. Kose, and F. Ohnsorge, World Bank, Washington, DC.

Lenza, M. and G. E. Primiceri. 2022. “How to Estimate a Vector Autoregression After March 2020.” Journal of Applied Econometrics 37(4): 688-699.

Matějů, J. 2019. “What Drives the Strength of Monetary Policy Transmission?” International Journal of Central Banking 15 (3): 59-87.

Melolinna, M. 2015. “What Has Driven Inflation Dynamics in the Euro Area, the United Kingdom and the United States?” ECB Working Paper 1802, European Central Bank, Frankfurt am Main.

Miranda-Agrippino, S. and H. Rey. 2020. “US Monetary Policy and the Global Financial Cycle.” The Review of Economic Studies 87 (6): 2754-76.

O’Brien, D., C. Dumoncel, and E. Gonçalves. 2021. “The Role of Demand and Supply Factors in HICP Inflation During the COVID-19 Pandemic–A Disaggregated Perspective.” Economic Bulletin Articles 1/2021.

Peersman, G., 2005. “What Caused the Early Millennium Slowdown? Evidence Based on Vector Autoregressions.” Journal of Applied Econometrics 20 (2): 185-207.

Rogoff, K. 2003. “Globalization and Global Disinflation.” Federal Reserve Bank of Kansas City Economic Review 88 (4): 45-78.

Rogoff, K. 2006. “Oil and the Global Economy.” Manuscript, Harvard University.

Rogoff, K. 2007. “Impact of Globalization on Monetary Policy” in Federal Reserve Bank of Kansas City, The New Economic Geography: Effects and Policy Implications.

Rogoff, K. 2019. “Is This the Beginning of the End of Central Bank Independence?” G30 Occasional Paper.

Rogoff, K. 2021a. “Are Inflation Fears Justified?” Project Syndicate, 1 March 2021.

Rogoff, K. 2021b. “Risks to Central Bank Independence.” in Independence, Credibility, and Communication of Central Banking, edited by Pasten, E. and R. Reis, Central Bank of Chile.

Rogoff, K. 2022a. “The Age of Inflation: Easy Money, Hard Choices.” Foreign Affairs November/December.

Rogoff, K. 2022b. “Rethinking Central Bank Design.” in Karl Brunner and Monetarism, edited by Moser, T. and M. Savioz, Cambridge: MIT Press.

Rogoff, K. 2022c. “Emerging Market Sovereign Debt in the Aftermath of the Pandemic.” Journal of Economic Perspectives 36 (4): 147-166.

di Giovanni, J., S. Kalemli-Özcan, A. Silva, and M. A. Yildirim. 2023. “Pandemic-Era Inflation Drivers and Global Spillovers.” NBER Working Paper w31887, National Bureau of Economic Research.

Smets, F., and R. Wouters. 2007. “Shocks and Frictions in US Business Cycles: A Bayesian DSGE Approach.” American Economic Review 97 (3): 586-606.

Uhlig, H. 2017. “Shocks, Sign Restrictions, and Identification.” Advances in Economics and Econometrics 2: 95-112.

Wheeler, C.M., J. Baffes, A. Kabundi, G. Kindberg-Hanlon, P. S. Nagle, and F. Ohnsorge. 2020. “Adding Fuel to the Fire: Cheap Oil During the COVID-19 Pandemic.” Policy Research Working Paper 9320, World Bank, Washington, DC.

Wong, B. 2015. “Do Inflation Expectations Propagate the Inflationary Impact of Real Oil Price Shocks? Evidence from the Michigan Survey.” Journal of Money, Credit and Banking 47(8): 1673-1689.

Wu, J. C., and F. D. Xia. 2016. “Measuring the Macroeconomic Impact of Monetary Policy at the Zero Lower Bound.” Journal of Money, Credit, and Banking 48 (2–3): 253– 29.

Yilmazkuday, H., 2014. “Gasoline Prices, Transport Costs, and the US Business Cycles.” Journal of Economic Dynamics and Control 45: 165-79.

Yilmazkuday, H., 2021. “The Great Trade Collapse: An Evaluation of Competing Stories.” Macroeconomic Dynamics 25 (4): 1053-89.