Global Inflation After COVID-19 and Monetary-Policy Responses in Developing and Developed Countries

Abstract

This study examines the drivers of global inflation after COVID-19 and compares the timing, instruments, and effectiveness of monetary-policy responses in developed and developing countries. It adopts a quantitative, explanatory, and comparative panel-data design covering 2019–2025, with 2019 serving as the pre-pandemic baseline. Secondary data on consumer-price inflation, policy interest rates, exchange rates, economic growth, fiscal support, energy and food prices, external conditions, and governance are drawn from the International Monetary Fund, World Bank, Bank for International Settlements, and other official sources. The analysis combines descriptive trend comparisons with pooled ordinary least squares, fixed-effects, and random-effects models, including an interaction term to test whether monetary-policy transmission differs by development status. The findings indicate that post-pandemic inflation resulted from the interaction of supply-chain disruptions, reopening demand, expansionary fiscal and monetary policies, commodity-price shocks, and exchange-rate depreciation. Developed economies initially relied on very low interest rates, quantitative easing, and extensive fiscal support, then shifted to rapid rate increases and balance-sheet tightening. Developing economies often tightened earlier because of imported inflation, currency depreciation, capital outflows, and external-debt pressures. Although global tightening and easing supply constraints reduced inflation after its 2022 peak, disinflation was generally faster in developed economies. Developing countries experienced more persistent pressures because of import dependence, weaker currencies, limited fiscal space, and less effective policy transmission. The study concludes that monetary tightening is necessary but insufficient and should be complemented by fiscal discipline, credible institutions, supply-side reforms, food and energy security, reserve management, and targeted protection for vulnerable households.

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