Relationships between Inflation and Unemployment in the United States, Japan and Germany during the Economic Crisis Caused by the COVID–19 Pandemic

Author:

Grabia TomaszORCID,Bywalec GrzegorzORCID

Abstract

The aim of the article is to clarify the controversies surrounding the relationship between inflation and unemployment in the three most economically significant countries in the world (apart from China), namely the United States, Japan, and Germany, during the coronavirus pandemic (from January 2020 to February 2022). The pandemic has had various adverse effects worldwide, including a severe economic crisis lasting from the first quarter of 2020 to the end of the first quarter of 2021. The primary causes of this crisis include declines in aggregate supply due to lockdowns in many sectors of the economy, particularly the service sector. A decrease in aggregate supply should cause not only an increase in unemployment but also an increase in inflation. The article, therefore, hypothesises that the relationships between unemployment and inflation in the countries studied during the above period were unidirectional. To verify this hypothesis, two basic research methods were used: analysis of correlation coefficients between the variables mentioned above and the shape of Phillips curves. Ultimately, the hypothesis was rejected because inflation during this period showed a decreasing tendency (mainly due to a significant drop in commodity prices). The article extends research presented in the literature before 2020, offering additional value by examining the period of the pandemic which precipitated an economic crisis. Future analysis should be expanded to include more variables (including the output gap) in line with the New Keynesian Phillips Curve.

Publisher

Uniwersytet Lodzki (University of Lodz)

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