ABSTRACT Economic policy uncertainty (EPU) hinders global economic recovery and is an important cause of economic recession. Additionally, EPU also hinders the development of firms. In this context, using firmsâ markups as the breakthrough point, this study analyses how EPU and financial constraints affect firmsâ markups with the assistance of an econometric model and using an index of EPU and data from Chinese Annual Survey of Industrial Firms. The conclusions are as follows: (1) EPU has a significantly negative impact on firmsâ markups; (2) both the internal and external financial constraints have a significantly negative impact on firmsâ markups; (3) the interaction between EPU and internal and external financial constraints has a significantly negative impact on the firmsâ markups. This study also analyses the differences of firmsâ heterogeneity. This study is helpful for firms to fully understand the different impacts of internal and external shocks on firmsâ markups, and provide more targeted reference for policy-making departments, and thus improve the policiesâ effectiveness.
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