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All Outputs (4)

Is Ethical Money Sensitive to Past Returns? The Case of Portfolio Constraints and Persistence in Islamic Funds (2015)
Journal Article
Abdelsalam, O., Duygun, M., Matallín-Sáez, J. C., & Tortosa-Ausina, E. (2017). Is Ethical Money Sensitive to Past Returns? The Case of Portfolio Constraints and Persistence in Islamic Funds. Journal of Financial Services Research, 51(3), 363-384. https://doi.org/10.1007/s10693-015-0234-x

In this paper, we analyze the performance persistence and survivorship bias of Islamic funds. The remarkable growth of these types of ethical funds raises the question of how non-financial attributes, including beliefs and value systems, influence pe... Read More about Is Ethical Money Sensitive to Past Returns? The Case of Portfolio Constraints and Persistence in Islamic Funds.

How a regulatory capital requirement affects banks’ productivity: an application to emerging economies (2015)
Journal Article
Duygun, M., Shaban, M., Sickles, R. C., & Weyman-Jones, T. (2015). How a regulatory capital requirement affects banks’ productivity: an application to emerging economies. Journal of Productivity Analysis, 44(3), 237-248. https://doi.org/10.1007/s11123-015-0451-1

This paper presents a novel approach to measure efficiency and productivity decomposition in the banking systems of emerging economies with a special focus on the role of equity capital. We model the requirement to hold levels of a fixed input, i.e.... Read More about How a regulatory capital requirement affects banks’ productivity: an application to emerging economies.

Measuring competition using the Boone relative profit difference indicator (2015)
Journal Article
Duygun, M., Shaban, M., & Weyman-Jones, T. (2015). Measuring competition using the Boone relative profit difference indicator. Economics Letters, 132, 117-120. doi:10.1016/j.econlet.2015.04.022

This paper suggests a method for implementing the theoretical relative profit difference test for intensity of competition due to Boone (2008). An empirical illustration is given for banking systems in emerging economies.