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This paper investigates the variation in nonperforming loans over the economic cycle and the effect of past returns based on a nonparametric quantile analysis of the largest Islamic banks in the United Kingdom and Turkey from 2010 to 2019. The findings show a weak variation in nonperforming loans that increases with an increasing return on assets and a decreasing return on equity and decreases in an inverse scenario. As a result, the credit risk of Islamic banks is countercyclical. We suggest that the inverse relationships evidence the existence of trade-offs within bank returns and credit risk. Thus, banks' past profitability and risk mitigation are determinants of asset quality. These findings provide support for risk-taking and risk-sharing principles in which flight-to-safety mirrors the calibration of risk factors in a disruptive economy. Our estimates indicate that nonparametric quantile regression captures considerably more variation in a risk-return analysis. [ABSTRACT FROM AUTHOR]

Uncertainty is one of the most important issues for economic actors. Uncertainty about tax, expenditure and debt policy has an impact on the economy. The central question in this study asks how fiscal policy uncertainty affects the Turkish economy. First, we quantify Turkey’s fiscal policy uncertainty index based on volatility measurements between 1998Q1 and 2020Q4. This index represents major fiscal, economic and political incidents in Turkey. Next, we analyse the effects of fiscal policy uncertainty on the Turkish economy using a VAR model. Our study finds that fiscal policy uncertainty shocks have detrimental and long-lasting effects on the Turkish economy. The results indicated that a positive standard deviation shock in fiscal policy uncertainty decreases the confidence, output and consumption. The findings of thisstudy reveal critical fiscal policy implications for decision-makers. These findings imply that reducing Turkey’s fiscal policy uncertainty is a critical policy priority for the business cycle fluctuations. [ABSTRACT FROM AUTHOR]