Abduh, M. (2020). Volatility of Malaysian Conventional and Islamic Indices: does Financial Crisis Matter? Journal of Islamic Accounting and Business Research, 11(1), 1-11.
Ahern, K. R. (2009). Sample Selection and Event Study Estimation. Journal of Empirical Finance, 16(3), 466-482.
Alam, M., & Ansari, V. A. (2020). Are Islamic Indices A Viable Investment Avenue? An Empirical Study of Islamic and Conventional Indices in India. International Journal of Islamic and Middle Eastern Finance and Management, 13(3), 503-518.
Al-Awadhi, A. M., Al-Saifi, K., Al-Awadhi, A., & Alhamadi, S. (2020). Death and Contagious Infectious Diseases: Impact of the COVID-19 Virus on Stock Market Returns. Journal of Behavioral and Experimental Finance, 27, 1-8.
Al-Zoubi, H. A., & Maghyereh, A. I. (2007). The Relative Risk Performance of Islamic Finance: A New Guide to Less Risky Investments. International Journal of Theoretical and Applied Finance, 10(02), 235-249.
Antipova, T. (2021). Coronavirus Pandemic as Black Swan Event. Lecture Notes in Networks and Systems (LNNS), 136, 356-366.
Anwer, Z., Mohamad, S. M. R., & Rasid, M. E. S. M. (2019). Is there a Cost for Adopting Faith-Based Investment Styles? In Islamic Corporate Finance (1st Ed.). London: Routledge.
Ashraf, B. N. (2020). Stock Markets’ Reaction to COVID-19: Cases or Fatalities? Research in International Business and Finance, 54, 1-10.
Baker, S. R., Bloom, N., Davis, S. J., Kost, K., Sammon, M., & Viratyosin, T. (2020). The Unprecedented Stock Market Reaction to COVID-19. The Review of Asset Pricing Studies, 10(4), 742-758.
Beer, F., Estes, J., & Deshayes, C. (2014). The Performance of the Faith and Ethical Investment Products: A Comparison Before and After the 2008 Meltdown. Financial Services Review, 23(2), 151-167.
Bhattacharjee, N., & De, A. (2022). Time-Varying Risks in ESG Equity Investments during the COVID-19 Pandemic. Global Business Review, 23(6), 1388-1402.
Christie, A. A. (1982). The Stochastic Behavior of Common Stock Various Value, Leverage and Interest Rate Effects. Journal of Financial Economics, 10, 407-432.
Czech, K., & Wielechowski, M. (2021). Is the Alternative Energy Sector COVID-19 Resistant? Comparison with the Conventional Energy Sector: Markov-Switching Model Analysis of Stock Market Indices of Energy Companies. Energies, 14, 988-998.
Dewandaru, G., Bacha, O. I., Masih, A., Mansur, M., & Masih, R. (2015). Risk-Return Characteristics of Islamic Equity Indices: Multi-Timescales Analysis. Journal of Multinational Financial Management, 29, 115-138.
Dickey, D. A., & Fuller, W. A. (1979). Distribution of the Estimators for Autoregressive Time Series with a Unit Root. Journal of the American Statistical Association, 74(366), 427-431.
Engle, R. F., & Ng, V. K. (1993). Measuring and Testing the Impact of News on Volatility. Journal of Finance, 48(5), 1749-1778.
Farebrother, R. W. (1980). The Durbin-Watson Test for Serial Correlation when there is no Intercept in the Regression. Econometrica, 48(6), 1553-1563.
Granger, C. W., & Terasvirta, T. (1993). Modelling Non-Linear Economic Relationships. Oxford: Oxford University Press.
Garcia, R., & Perron, P. (1996). An Analysis of the Real Interest Rate under Regime Shifts. Review of Economics and Statistics, 78, 111-125.
Hansen, B. (1992). The Likelihood Ratio Test under Non-Standard Conditions: Testing the Markov Switching Model of GNP. Journal of Applied Econometrics, 7, 61–82.
Hamilton, J. D. (1989). A New Approach to the Economic Analysis of Nonstationary Time Series and the Business Cycle. Econometrica, 57(2), 357-384.
Haroon, O., Ali, M., Khan, A., Khattak, M. A., & Rizvi, S. A. R. (2021). Financial Market Risks during the COVID-19 Pandemic. Emerging Markets Finance and Trade, 57(8), 2407-2414.
Hill, J. (2020). Environmental, Social, and Governance (ESG) Investing. New York: Elsevier.
Korley, M., & Giouvris, E. (2021). The Regime-Switching Behaviour of Exchange Rates and Frontier Stock Market Prices in Sub-Saharan Africa. Journal of Risk and Financial Management, 14(3), 1-30.
Kwiatkowski, D., Phillips, P. C. B., Schmidt, P., & Shin, Y. (1992). Testing the Null Hypothesis of Stationarity against the Alternative of a Unit Root. Journal of Econometrics, 54(1-3), 159-187.
Lin, X., & Falk, M. T. (2021). Nordic Stock Market Performance of the Travel and Leisure Industry during the First Wave of Covid-19 Pandemic. Tourism Economics, 28(5), 1240-1257.
Lintner, J. (1965). The Valuation of Risk Assets and the Selection of Risky Investments in Stock Portfolios and Capital Budgets. Review of Economics and Statistics, 47, 13-37.
Liu, X., Margaritis, D., & Wang, P. (2012). Stock Market Volatility and Equity Returns: Evidence from a Two-State Markov-Switching Model with Regressors. Journal of Empirical Finance, 19, 483-496.
Lyn, E. O., & Zychowicz, E. J. (2010). The Impact of Faith-Based Screens on Investment Performance. The Journal of Investing, 19(3), 136-143.
Markowitz, H. (1952). Portfolio Selection. Journal of Finance, 7(1), 77-91.
Morales, L., & Andreosso-O’callaghan, B. (2020). Covid-19-Global Stock Markets “Black Swan.” Critical Letters in Economics & Finance, 1(1), 1-14.
Pericoli, M., & Sbracia, M. (2003). A Primer on Financial Contagion. Journal of Economic Surveys, 17(4), 571-608.
Persio, L., & Vettori, S. (2014). Markov Switching Model Analysis of Implied Volatility for Market Indexes with Applications to S&P 500 and DAX. Journal of Mathematics, 753852, 1-18.
Psaradakis, Z., & Spagnolo, N. (2003). On the Determination of The Number of Regimes in Markov - Switching Autoregressive Models. Journal of Time Series Analysis, 24(2), 237-252.
Rizvi, S. A. R., & Arshad, S. (2018). Understanding Time-Varying Systematic Risks in Islamic and Conventional Sectoral Indices. Economic Modelling, 70, 561-570.
Sensoy, A. (2016) Systematic Risk in Conventional and Islamic Equity Markets. International Review of Finance, 16(3), 457-466.
Sharpe, W. F. (1963). A Simplified Model for Portfolio Analysis. Management Science, 9(2), 277-293.
Stapleton, R. C., & Subrahmanyam, M. G. (1983). The Market Model and Capital Asset Pricing Theory: A Note. The Journal of Finance, 38(5), 1637-1642.
Umar, Z., & Gubareva, M. (2021) Faith-based Investments and the Covid-19 Pandemic: Analyzing Equity Volatility and Media Coverage Time-Frequency Relations. Pacific Basin Finance Journal, 67, 1-10.
Zaremba, A., Kizys, R., Aharon, D. Y., & Demir, E. (2020). Infected Markets: Novel Coronavirus, Government Interventions, and Stock Return Volatility around the Globe. Finance Research Letters, 35, 1-15.