The inflationary effect of the budget deficit: does financial sector development matter?

Abstract This study aims to examine the budget deficit–inflation relationship, considering financial sector development and broad money supply as moderating and mediating variables. For this purpose, a panel data set ranging from polled mean group, mean group, and dynamic fixed effect estimation techniques are employed. Hence, the pooled mean group estimation result reveals that the budget deficit is inflationary. In addition, GDP per capita, the effective exchange rate, financial sector development, regulatory quality, and the interaction term of the budget deficit and financial sector development are significant determinants of inflation. The study further examines the role of the broad money supply as a mediating variable in the budget deficit–inflation relationship. The structural equation model results and the mediation effect tests confirmed a partial mediation effect of the broad money supply on the budget deficit–inflation relationship. Based on the findings, it is recommended to strengthen regulatory quality, reduce broad money supply, and improve financial sector development. By doing so, we can create a more stable and efficient economy that benefits everyone in the long run.