This study employed GARCH (1.1) techniques to evaluate the existence of high stock market returns volatility, and the impact of the exchange rate, interest rate and inflation on stock market returns in Nigeria, using monthly series data from 1995 – 2014. Excessive volatility hinders the stock market from playing its role of Mobilizing, financial resources from surplus units to deficit units and may cause a financial crisis. The research finding shows that interest rate has a negative relationship with stock market returns, while the inflation rate and exchange rate have a positive relationship with stock market returns. The conclusion therefore is, there is high and persistent volatility in the Nigerian stock market returns. Exchange rate, interest rate, and inflation significantly impact stock market return volatility in Nigeria. The study recommends that regulatory authorities should take proactive steps to minimize stock market return in order to restore confidence in the market.

This study investigates the effect of Nigeria’s domestic public debt on economic development of Nigeria spanning from 1981-2018. This is in response to the doubts being raised in some quarters as to whether the continuous increase in domestic debt over the years has led to the economic development of Nigeria as the former has been known to influence the later if well harnessed and executed. The secondary data used in the study were sourced from Central Bank of Nigeria Statistical Bulletin, Debt Management Office of Nigeria, World Bank Development Indicators and United Nations Development Program. The study made use of Ordinary Least Square Regression tools to determine the statistical relationship between Nigeria’s domestic public debt profile and Human Development Index as well as private sector investment. The outcome of study in the first model showed that domestic debt servicing and state governments’ domestic debts are significantly related to economic development. On the other hand, Federal domestic debt and State domestic debt are significantly related to private sector investment. The study therefore recommends that government should be cautious in her domestic borrowing policy given that servicing debt always becomes a burden to the sustainability of economic gains, in addition to its tendency of crowding-out private sector investment in Nigeria.

As an important issue in the fiscal structure of a country, tax gap is defined as the difference between tax burden that the taxpayer should face and the amount actually paid. In this study, tax gap was evaluated by the framework of the Value Added Tax. The reason behind this choice, i.e. Value Added Tax Gap (VAT Gap) is to make an effort to evaluate the efficiency of the tax administration, the compliance of the taxpayers and the relationship between policy gap and the compliance gap. With this aim, VAT Gap and the various methods to calculate this gap were examined. Furthermore, based on the reports by the European Commission, VAT Gap in Turkey for 1993-2014 period were estimated and evaluated by employing the top-down method.

This study examined the effect of federal government revenue and expenditure on the economic growth of Nigeria for the period 1983 to 2018. Prior to now many studies have been completed on the subject matter and yet there doesn't seem to be a consensus of opinion amongst the different researchers on the relationship between revenue and expenditure interface in Nigeria. This could be ascribed to the different approaches gies set forward to clarify the relationship; thus warranting the need for this research .The investigation embraced an ex-post facto research design to produce test results via Bounds test, ARDL short/long run estimates and to make forecasts. The full scale economic factors used in the study includes Real Gross domestic product (proxy for economic growth), federal government retained revenue, non-oil revenue, capital expenditure and recurrent expenditure. We chose to be different in this study with a conscious omission of oil revenue as a variable of study. Findings of the research showed that federal government retained revenue; non-oil revenue and recurrent expenditure were statistically significant in explaining the relationship with economic growth in the short run; while capital expenditure was not at 5% Alpha level. Federal government retained revenue was also found to be statistically significant in the long run. On the basis of these findings, it was concluded that the influential growth variables are federal government retained revenue; non-oil revenue and recurrent expenditure. The researchers thus recommend that government should be tactful in her efforts at fiscal policy synchronization. There is need to monitor Nigeria’s expenditure pattern, increase in revenue and a consequent increase in governments retained revenue. This will make for an effective adjustment in the utilization of capital expenditures and to assist with raising the level of economic growth in Nigeria