The aim of this study is to investigate the impact of inflation uncertainty on financial system efficiency in 71 developing countries using a panel autoregressive model over the period 2004-2023. For this purpose, first, the stationarity of the variables was examined using the Im-shin-Pesaran unit root test, then the cross-sectional independence test was examined to detect dependence, and finally, the panel-ARDL model was estimated. The results indicate that in the long run, inflation uncertainty and the governance index have a negative and significant impact on financial system efficiency and reduce financial system efficiency. The results also show that in the long run, the impact of economic growth and financial development on financial system efficiency is positive and significant, but in the short run, they have a negative and significant impact on financial system efficiency.

The aim of this study is to investigate the impact of inflation uncertainty on financial system efficiency in 71 developing countries using a panel autoregressive model over the period 2004-2023. For this purpose, first, the stationarity of the variables was examined using the Im-shin-Pesaran unit root test, then the cross-sectional independence test was examined to detect dependence, and finally, the panel-ARDL model was estimated. The results indicate that in the long run, inflation uncertainty and the governance index have a negative and significant impact on financial system efficiency and reduce financial system efficiency. The results also show that in the long run, the impact of economic growth and financial development on financial system efficiency is positive and significant, but in the short run, they have a negative and significant impact on financial system efficiency.