Are African Stock Markets Inefficient? New Evidence on Seasonal Anomalies

Authors

  • Júlio Lobão

DOI:

https://doi.org/10.2478/saeb-2018-0023

Keywords:

Africa, market efficiency, stock markets, seasonal anomalies

Abstract

It is widely acknowledged that having efficient financial markets is paramount in the allocation of social resources to their most productive uses. This paper explores the informational efficiency of six of the most important African stock markets for indication of seasonal predictability in stock returns. The results reveal that all markets exhibited some kind of seasonal patterns. The prevalence of the phenomenon was higher in the Egyptian and Tunisian markets, suggesting the presence of inefficient prices. Surprisingly, the only advanced emerging market of the sample (South Africa) showed a relatively large number of anomalies. This paper also reports the existence of strong pre-holiday effects and turn-of-the-month effects in most of the markets under scrutiny. Moreover, this study is the first to document the presence of quarterly effects in African markets. Collectively, the evidence obtained highlights the opportunity for arbitrageurs to reap profits as well as the need of decision-makers to implement legal and regulatory reforms in the markets of the continent.

JEL Codes - G11; G14; G15

References

Agrawal, A., and Tandon, K., 1994. Anomalies or illusions? Evidence from stock markets in eighteen countries. Journal of International Money and Finance, 13(1), 83-106. http://dx.doi.org/10.1016/0261-5606(94)90026-4

Ahmed, B., and Boutheina, R., 2017. Financial market anomalies: Evidence from Tunisia stock market. Asian Journal of Empirical Research, 7(9), 238-250. http://dx.doi.org/10.18488/journal.1007/2017.7.9/1007.9.238.250

Alagidede, P., 2008. Day of the week seasonality in African stock markets. Applied Financial Economics Letters, 4(2), 115-120. http://dx.doi.org/10.1080/17446540701537749

Alagidede, P., 2013. Month of the Year and Pre-holiday Effects in African Stock Markets. South African Journal of Economics and Management Sciences, 16(1), 64-74.

Alagidede, P., and Panagiotidis, T., 2009. Calendar Anomalies in the Ghana Stock Exchange. Journal of Emerging Market Finance, 8(1), 1-23. http://dx.doi.org/10.1177/097265270900800101

Aly, H., Mehdian, S., and Perry, M. J., 2004. An Analysis of the Day-of-the-Week Effects in the Egyptian Stock Market. The Journal of Business, 9(3), 301-308.

Appiah-Kusi, J., and Menyah, K., 2003. Return predictability in African stock markets. Review of Financial Economics, 12(3), 247-270. http://dx.doi.org/10.1016/S1058-3300(02)00073-3

Ariel, R. A., 1987. A Monthly Effect in Stock Returns. Journal of Financial Economics, 18(1), 161-174. http://dx.doi.org/10.1016/0304-405X(87)90066-3

Ariel, R. A., 1990. High Stock Returns before Holidays: Existence and Evidence on Possible Causes. The Journal of Finance, 45(5), 1611-1626. http://dx.doi.org/10.1111/j.1540-6261.1990.tb03731.x

Auret, C., and Cline, R., 2011. Do the value, size and January effects exist on the JSE? The Investment Analysts Journal, 40(74), 29-37. http://dx.doi.org/10.1080/10293523.2011.11082539

Ayadi, O. F., Dufrene, U. B., and Chatterjee, A., 1998. Stock return seasonalities in low-income African emerging markets. Managerial Finance, 24(3), 22-33. http://dx.doi.org/10.1108/03074359810765408

Bekaert, G., and Harvey, C. R., 2003. Emerging markets finance. Journal of Empirical Finance, 10(1-2), 3-55. http://dx.doi.org/10.1016/S0927-5398(02)00054-3

Bouges, J. C., Jain, R., and Puri, Y. R., 2009. American depository receipts and calendar anomalies. Applied Financial Economics, 19(1), 17-25. http://dx.doi.org/10.1080/09603100701748949

Bouman, S., and Jacobsen, B., 2002. The Halloween Indicator, "Sell in May and Go Away": Another Puzzle. The American Economic Review, 92(5), 1618-1635.

Cadsby, C. B., and Ratner, M., 1992. Turn-of-month and pre-holiday effects on stock returns: Some international evidence. Journal of Banking & Finance, 16(3), 497-509. http://dx.doi.org/10.1016/0378-4266(92)90041-W

Chaouachi, O., and Douagi, F. W. B. M., 2014. Calendar effects in the Tunisian stock exchange. International Journal of Behavioural Accounting and Finance, 4(4), 281-289. http://dx.doi.org/10.1504/IJBAF.2014.067593

Chui, A., Titman, S., and Wei, J., 2010. Individualism and Momentum around the World. The Journal of Finance, 65(1), 361-392. http://dx.doi.org/10.1111/j.1540-6261.2009.01532.x

Chukwuogor, C., 2008. An Econometric Analysis of African Stock Market: Annual Return Analysis, Day-of-the-Week Effect and Volatility of Returns. International Research Journal of Finance and Economics, 14, 369-378.

Daouk, H., and Charoenrook, A., 2005. A study of market-wide short-selling restrictions. SSRN. https://papers.ssrn.com/sol3/papers.cfm?abstract_id=687562.

Darrat, A. F., Li, B., and Chung, R., 2013. Seasonal Anomalies: A Closer Look at the Johannesburg Stock Exchange. Contemporary Management Research, 9(2), 155-168. http://dx.doi.org/10.7903/cmr.10629

Darrat, A. F., Li, B., Liu, B., and Su, J. J., 2011. A Fresh Look at Seasonal Anomalies: An International Perspective. International Journal of Business and Economics, 10(2), 93-116.

Demirguc-Kunt, A., and Huizinga, H., 2001. Financial Structure and Bank Profitability. In A. Demirguc-Kunt and R. Levine (Eds.), Financial Structure and Economic Growth: A Cross-Country Comparison of Banks, Markets, and Development (pp. 243-261). Cambridge, MA: MIT Press.

Demirguc-Kunt, A., and Levine, R., 2001. Financial Structure and Economic Growth: A Cross-Country Comparison of Banks, Markets, and Development. Cambridge, MA: MIT Press.

Djankov, S., La Porta, R., Lopez-de-Silanes, F., and Shleifer, A., 2008. The law and economics of self-dealing. Journal of Financial Economics, 88(3), 430-465. http://dx.doi.org/10.1016/j.jfineco.2007.02.007

Durnev, A., Morck, R., and Yeung, B., 2004. Value-Enhancing Capital Budgeting and Firm-specific Stock Return Variation. The Journal of Finance, 59(1), 65-105. http://dx.doi.org/10.1111/j.1540-6261.2004.00627.x

Fama, E. F., 1970. Efficient Capital Markets: A Review of Theory and Empirical Work. The Journal of Finance, 25(2), 383-417. http://dx.doi.org/10.2307/2325486

French, K. R., 1980. Stock returns and the weekend effect. Journal of Financial Economics, 8(1), 55-69. http://dx.doi.org/10.1016/0304-405X(80)90021-5

Galai, D., Kedar-Levy, H., and Schreiber, B., 2008. Seasonality in outliers of daily stock returns: A tail that wags the dog? International Review of Financial Analysis, 17(5), 784-792. http://dx.doi.org/10.1016/j.irfa.2007.12.001

Gbeda, J. M., and Peprah, J. A., 2017. Day of the week effect and stock market volatility in Ghana and Nairobi stock exchanges. Journal of Economics and Finance. http://dx.doi.org/10.1007/s12197-017-9409-7

Gennaioli, N., La Porta, R., Lopez-de-Silanes, F., and Shleifer, A., 2013. Human Capital and Regional Development. The Quarterly Journal of Economics, 128(1), 105-164. http://dx.doi.org/10.1093/qje/qjs050

Giovanis, E., 2009. Calendar Effects in Fifty-five Stock Market Indices. Global Journal of Finance and Management, 1(2), 75-98.

Hofstede, G., 2001. Culture's consequences: comparing values, behaviors, institutions and organizations across nations. New York: Sage Publications.

Jacobsen, B., and Zhang, C. Y., 2014. The Halloween indicator, ‘Sell in May and go Away’: An Even Bigger Puzzle. SSRN. http://dx.doi.org/10.2139/ssrn.2154873

Jaffe, J., and Westerfield, R., 1985. The week-end effect in common stock returns: The international evidence. The Journal of Finance, 40(2), 433-454. http://dx.doi.org/10.1111/j.1540-6261.1985.tb04966.x

Jaffe, J., and Westerfield, R., 1989. Is there a monthly effect in stock market returns? Evidence from foreign countries. Journal of Banking & Finance, 13(2), 237-244. http://dx.doi.org/10.1016/0378-4266(89)90062-9

Jain, A., Jain, P. J., McInish, T. H., and McKenzie, M., 2013. Worldwide reach of short selling regulations. Journal of Financial Economics, 109(1), 177-197. http://dx.doi.org/10.1016/j.jfineco.2013.02.012

Kim, C., and Park, J., 1994. Holiday Effects and Stock Returns: Further Evidence. Journal of Financial and Quantitative Analysis, 29(1), 145-157. http://dx.doi.org/10.2307/2331196

La Porta, R., Lopez-de-Silanes, F., and Shleifer, A., 2006. What works in securities laws? The Journal of Finance, 61(1), 1-32. http://dx.doi.org/10.1111/j.1540-6261.2006.00828.x

Lakonishok, J., and Smidt, S., 1988. Are Seasonal Anomalies Real? A Ninety-Year Perspective. Review of Financial Studies, 1(4), 403-425. http://dx.doi.org/10.1093/rfs/1.4.403

Levine, R., and Zervos, S., 1998. Stock Markets, Banks, and Economic Growth. The American Economic Review, 88(3), 537-558.

Mehdian, S., and Perry, M. J., 2002. Anomalies in US equity markets: A re-examination of the January effect. Applied Financial Economics, 12(2), 141-145. http://dx.doi.org/10.1080/09603100110088067

Newey, W. K., and West, K. D., 1987. A simple, positive semi-definite, heteroskedasticity and autocorrelation consistent covariance matrix. Econometrica, 55(3), 703-709. http://dx.doi.org/10.2307/1913610

Ogieva, O. F., and Osamwonyi, I. O., 2013. Testing Calendar Effect on Nigerian Stock Market Returns: Methodological Approach. Journal of Financial Management and Analysis, 26(1), 39-64.

Olowe, R. A., 2009. Stock Return Volatility, Global Financial Crisis and the Monthly Seasonal Effect on the Nigerian Stock Exchange. African Review of Money, Finance and Banking, 33, 73-107.

Osarumwense, O., 2015. Day-of-the-week effect in the Nigerian Stock Market Returns and Volatility: Does the Distributional Assumptions Influence Disappearance? European Financial and Accounting Journal, 10(4), 33-44. http://dx.doi.org/10.18267/j.efaj.148

Rozeff, M. S., and Kinney, W. R., 1976. Capital market seasonality: The case of stock returns. Journal of Financial Economics, 3(4), 379-402. http://dx.doi.org/10.1016/0304-405X(76)90028-3

Seif, M., Docherty, P., and Shamsuddin, A., 2017. Seasonal anomalies in advanced emerging stock markets. The Quarterly Review of Economics and Finance, 66, 169-181. http://dx.doi.org/10.1016/j.qref.2017.02.009

Siegel, J., 2014. Stocks for the Long Run (5th ed. ed.). New York: McGraw-Hill.

Wurgler, J., 2000. Financial Markets and the Allocation of Capital. Journal of Financial Economics, 58(1-2), 187-214. http://dx.doi.org/10.1016/S0304-405X(00)00070-2

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Published

2018-09-19

How to Cite

Lobão, J. (2018). Are African Stock Markets Inefficient? New Evidence on Seasonal Anomalies. Scientific Annals of Economics and Business, 65(3), 283–301. https://doi.org/10.2478/saeb-2018-0023

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