Stephen Oseko Migiro

Due to the threat of recorded business failures arising from weak corporate governance and low financial reporting quality on the Nigerian economy, this study investigates the effects of corporate governance variables on earnings management among selected listed firms from the manufacturing and banking sectors. A sample of 24 listed companies from the 2 sectors’ population of 63 was examined to gather empirical data from 2008 to 2013 using multiple regression tools. Employing the panel data analysis approach, board independence, audit committee independence and audit committee size are insignificantly positively correlated with earnings management. Board size is insignificantly negatively correlated with earnings management while ownership structure is insignificantly negatively correlated with earnings management. Audit quality is positively correlated with earnings management, though not statistically significant. Based on these findings, the study concludes that corporate governance structures, as it were, have not helped to address earnings management. The study recommends, among other things considering the first 4 hypotheses that investors should invest in companies with moderate-to-high debt-to-equity ratios as lenders are able to externally monitor companies. It also recommended that regulatory bodies should frequently discharge their supervisory roles by monitoring the companies’ activities to ensure compliance

Understanding the impact of financial liberalization on stock market is important for decision making by investors. The neo-classical economists believe that financial liberalization reduces stock market volatility while the post-Keynesian economists argue that financial liberalization increases volatility of the stock market. This study investigates the effect of financial liberalization on the volatility of an emerging stock market in Africa, with particular focus on the Nigerian stock market. The estimation results reveal that financial liberalization has a significant positive impact on return volatility, thus indicating that it increases stock market volatility. Also, the study finds no evidence of asymmetry in the stock market.

This study investigates the causal relationship between bank personnel ratio and the cost-income ratio based on performance in Nigeria for the period of 2004–2015. Secondary data collected on a cross section of 15 banks during this period was analyzed using panel unit root, cointegration and Granger causality techniques. A unit root test revealed that the variables are stationary at order one. The result further shows there is an equilibrium relationship or stability in the short and long run; furthermore, there is a bidirectional causal relationship between personnel ratio and cost-income ratio. Therefore, the study recommends that the apex bank should enforce policies in the banking sector that will minimize the unit cost of operation – even though they might hire more staff. This is to enhance the stability of the banks in Nigeria and to avoid any threat to their continuity.