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Abstract

The study investigates the impact of Financial Openness (FOp) or/and Trade Openness (TOp) on the efficiency of the Nigerian Stock Market (NSM). Applying auto-regressive distributed lag model on stock market data, the result revealed that either in individual models or when in one model, an increase in TOp significantly increased the efficiency of the NSM in both the short and long-run, while the contrary holds for a percentage increase in FOp over 2010-2020. This suggests that TOp rather than FOp, significantly contributed to the efficiency of the NSM. Thus, TOp and FOp have differentiated impacts on stock market efficiency. Policymakers should systematically reduce high tariffs, implement single window clearing system to eliminate multiple payments at the borders and wharfs and simplify trade procedures and controls. These will reduce the cost of importation of capital goods for productive investments and improve stock market efficiency.

References

Aawaar, G. M., Tewari, D. D., & Zhiyong Liu, J. (2017). Market Integration and Informational  Efficiency of Africa's Stock Markets. Frontiers in Finance & Economics, 14(2), 50-84

Ademola, I. S., Olusuyi, A. E., Ibiyemi, O., & Babatunde, G. A. (2013). Trade openness and  economic growth in Nigeria (19812009): an empirical analysis. International Journal of  Humanities and Social Science Invention, 2(6), 101-113.

Agwu, E. C., Ogbonna, U. G. and Okpara, G. C. (2020). Efficient market hypotheses controversy  and Nigerian Exchange Group relations. International Journal of  Accounting, Finance  and Risk Management. 5(3),131-140. Doi:  10.11648/j.ijafrm.20200503.12.

Aizenman, J. (2008). On the hidden links between financial and trade opening. Journal of  International Money and Finance, 27(3), 372-386.

Akande, A. A., Olowe, S. O. and Asabi, O. M. (2015). Effect of Stock market regulations  and reforms on investors’ wealth in Nigeria. International Journal of Economics,  Commerce and Management 3(1), 1-9.

Akinmade, B., Adedoyin, F. F., & Bekun, F. V. (2020). The impact of stock market manipulation  on Nigeria’s economic performance. Journal of Economic Structures, 9(1), 52.

Akpansung, A. O., and Waziri, S. E. (2018). Has financial liberalisation promoted  economic growth in Nigeria? Evidence from Auto-Regressive Distributed Lag (ARDL) approach. Asian Economic and Financial Review 8(2),172-188.

Alajekwu, U. B., Ezeabasili, V. N. and Nzotta, S. M. (2013). Trade openness, stock market  development and economic growth of Nigeria: empirical evidence. Research Journal of  Finance and Accounting 4(3), 120-127.

Al-Smadi, M. O. (2018). The role of financial inclusion in financial stability: lesson from  Jordan., Banks and Bank Systems 13(4), 31-39 Aluthge,

C., Jibir, A. and Abdu, M. (2021). Impact of government expenditure on economic  growth in Nigeria, 1970-2019, CBN Journal of Applied Statistics ISSN 2476-8472, The  Central Bank of Nigeria, Abuja, 12(1), 139-174,  http://dx.doi. org/10.33429/Cjas.12121.6/6

Anthony-Orji, O. I., Orji, A. and Ogbuabor, J. E. (2018). Analysis of stock market  development,  foreign private investment and economic growth in Nigeria.  Journal of Infrastructure Development 10(1-2), 1-17.

Arjoon, V. (2016). Microstructures, financial reforms and informational efficiency in an emerging  market. Research in International Business and Finance 36, 112-126.

Ashraf, A. N. (2017). Do trade and financial openness matter for financial development? Bank-level  evidence from emerging market economies, Research in International Business and Finance, 44, 434-458, https://doi.org/10.1016/j.ribaf.2017.07.115.

Bai, J. and Perron, P. (1998). Estimating and testing linear models with multiple structural  changes. Econometrica 66(1), 47-78.

Baig, A. S., Blau, B. M. and Sabah, N. (2021). Free trade and the efficiency of financial  markets. Global Finance Journal 48. 100545.

Basu, P. and Morey, M. R. (2005). Trade opening and the behaviour of emerging stock market  prices. Journal of Economic Integration 20(1), 68-92.

Beine, M. and Candelon, B. (2011). Liberalisation and stock market co-movement  between  emerging economies. Quantitative Finance 11(2),299-312.

Bist, J. P., & Bista, N. B. (2018). Financegrowth nexus in Nepal: An application of the ARDL  approach in the presence of structural breaks. Vikalpa, 43(4), 236-249.

Blau, B. M. (2017). Economic freedom and crashes in financial markets. Journal of  International Financial Markets, Institutions and Money 47, 33-46.

Chordia, T., Roll, R. and Subrahmanyam, A. (2008). Liquidity and market efficiency.  Journal of financial Economics, 87(2), 249268.

Dissou, Y and Nafie, Y. (2021). On the link between current account and fiscal imbalances in  the presence of structural breaks: Empirical evidence from Egypt, The Quarterly Review and Finance,79, 15 – 27 of Economics

Echekoba F. N., Okonkwo V.I. and Adigwe P. K. (2015). Trade Liberalization and Economic  Growth: The Nigerian Experience (1971-2012), Journal of Business and  Management,17(8), 85-100

Egwuatu, P. (2020, February 3). New VAT rate triggers rise in stock market transaction  cost. Vanguard. https://www.vanguardngr.com/2020/02/new-vat rate-triggersrise-in- stock-market-transaction-cost/

Fama, E. F. (1970). Efficient capital markets: a review of theory and empirical work. The  journal of Finance 25(2), 383-417.

Food and Agricultural Organisation (FAO) and the African Economic Research Consortium  (AERC).

Graham, M., Peltomaki, J. and Sturludottir, H. (2015). Do capital controls affect stock market  efficiency? Lessons from Iceland. International Review of Financial Analysis 41, 82-88

He, W. and Shen, J. (2014). Do foreign investors improve informational efficiency of stock prices?  Evidence from Japan. Pacific-Basin Finance Journal 27, 32-48.

Hooy, C-W. and Lim, K-P. (2013). Is market integration associated with informational  efficiency of stock markets? Journal of Policy Modelling 35, 29-44 https://doclib.ngxgroup.com/dealing-memberssite/Notices/Interpretative Guidance on the Index  Circuit Breakers Rule.pdf

Karavias, Y., & Tzavalis, E. (2017). Local power of panel unit root tests allowing for structural  breaks. Econometric Reviews, 36(10), 1123-1156.

Lawal, A. I., Nwanji, T. I., Adama, I. J. and Otekunrin, A. O. (2018). Examining the Nigerian  stock market efficiency: empirical evidence from wavelet unit root test  approach.  Journal of Applied Economic Sciences12. http://eprints.lmu.edu. ng/2493/

Lee, C. C. and Chang, C. P. (2005). Structural breaks, energy consumption, and economic  growth revisited: Evidence from Taiwan. Energy Economics 27(6), 857 - 872

Li, Y., Liu, J., Wang, H. and Wang, P. (2021). Stock market liberalization, foreign institutional  investors, and informational efficiency of stock prices: Evidence  from  an emerging  market. International Journal of Finance & Economics 26(4), 5451- 5471.

Lim, K. P. and Kim, J. H. (2011). Trade openness and the informational efficiency of  emerging stock markets. Economic Modelling, 28(5), 2228-2238.

Mateus, C. and Hoang, B. T. (2021). Frontier markets, liberalization and informational efficiency: evidence from Vietnam. AsiaPacific Financial Markets 28(4), 499 - 526

Menegaki, A. N. (2019). The ARDL method in the energy-growth nexus field; best  implementation strategies. Economies 7(4), 105. doi:10.3390/economies7040105.

Moawad, R. R. (2019). Financial Development and Economic Growth: ARDL Model.  International Multilingual Journal of Science and Technology4.7: 625-632.

Morgado, P., & Tavares, J. (2006). Economic integration and the co-movement of stock  returns.

Naghavi, N. and Lau, W. Y. (2014). Exploring the nexus between financial openness and  informational efficiency–does the quality of institution matter? Applied Economics  46(7), 674-685.

Naghavi, N. and Lau, W. Y. (2016). Financial liberalization and stock market efficiency:  Causality analysis of emerging markets. Global Economic Review, 45(4), 359-379.

Naghavi, N., Mubarik, M. S. and Kaur, D. (2018). Financial liberalization and stock market  efficiency: Measuring the threshold effects of governance. Annals of Financial economics,13(4), 1850016

Nguyen, C. P., Nguyen, T. V. H. and Schinckus, C. (2019). Institutions, economic  openness and  stock return co-movements: An empirical investigation in emerging markets. Finance Research Letters 28, 137-147.

Nikmanesh, L. (2016). Trade openness and stock market volatility in the ASEAN-5 countries: New evidence using SUR. Investment Analysts Journal, 45(3), 194-211.

Nkoro, E. and Uko, A. K. (2016). Autoregressive Distributed Lag (ARDL) cointegration  technique: application and interpretation. Journal of Statistical and Econometric  methods 5(4), 63-91.

Nugroho, S. and Danarsari, D. N. (2020). The Impact of Trade Openness and Financial  Openness on Information Efficiency of Five ASEAN Countries’ Stock Market 2 0 0 0- 2014. Indonesian Capital Market Review 11(2), 5

Nwafor, M Ogujiuba K. and Adenikiju, A. (2005). The impact of trade liberalization on poverty in Nigeria: Dynamic simulation in a CGE model. A paper presented during  the 4th PEP research network general meeting, Jan. 13-17, 2005,  Colomba, Lanka Sri

Obinna,O. (2020). Impact of interest rate deregulation on investment growth in Nigeria. International Journal of Economics and Financial Issues, 10.2: 170.

Ogbebor, P. I. (2017). Impact of financial liberalization on the efficiency of the Nigerian  stock  market: 1986-2011 (Doctoral dissertation).

Ogwumike, F. O. and Ofoegbu, D. I. (2012). Financial liberalisation and domestic savings  in  Nigeria. The Social Sciences 7(4), 635646.

Oji, H. (2019, February 20). How Multiple Taxes Cripple Listed Companies’ Operations.  Guardian. https://guardian.ng/ business-services/how-multiple- taxescripple-listed- companies-operations/

Olayungbo, D. O. (2021). Global oil price and food prices in food importing and oil  exporting developing countries: A panel ARDL analysis. Heliyon 7(3), e06357.

Oluwole, F. O. (2014). Globalization and Stock Market Growth in Nigeria, European  Scientific Journal 10(31), 317-332

Omoke, P. C. and Opuala-Charles, S. (2021). Trade openness and economic growth nexus:  Exploring the role of institutional quality in Nigeria, Cogent Economics and Finance,  9.1: 1868686, DOI: 10.1080/23322039.2020.1868686.

Onele, J. (2016). Insider Dealing under Nigerian Law: Any New Lessons? The Gravitas  Review  of Business & Property Law 7(2), 131-144.

Onyeisi, O. S., Odo, I. S. and Anoke, C. I. (2016). Foreign portfolio investment and stock market growth in Nigeria. Developing Country Studies (6.11), 64-76.

Owusu, E. L. and Odhiambo, N. M. (2014). Stock market development and economic growth  in Ghana: an ARDL-bounds testing approach. Applied Economics Letters 21(4), 229-234 Ozekhome, H. (2022). Impact of Financial Liberalization on Financial Deepening in  Nigeria, NDIC Quarterly 38(2), 33.58 Qamruzzaman, M. and Wei, J. (2018). Financial innovation, stock market development, and  economic growth: An application of ARDL model. International Journal Financial  Studies, 6(3), 69.

Rejeb, A. B. and Boughrara, A. (2013). Financial liberalization and stock markets  efficiency:  New evidence from emerging economies. Emerging markets review 17, 186-208.

Shrestha, M. B. and Bhatta, G. R. (2018). Selecting appropriate methodological framework for  time series data analysis. The Journal of Finance and Data  4(2), 71-89. 

Todea, A. and Pleşoianu, A. (2013). The influence of foreign portfolio investment on informational  efficiency: Empirical evidence from Central and Eastern European  stock  markets.  Economic Modelling 33, 34-41. http://dx.doi.org/10.1016/j. econmod.2013.03.017

Zivot, E., & Andrews, D. W. (1992). Further evidence on the great crash, the oilprice  shock,  and the unit-root. Journal of Business & Economic Statistics 10(3), 251-270

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