This work is set out as an investigation into the impact of change in oil prices on government revenue broken into oil and nonoil component. Drawing data from the Central Bank Statistical Bulletin and covering the period 1981 to 2018. The Autoregressive Distributed Lag (ARDL) Model was used because of its advantages over other regression techniques. It was found that changes in oil price affected oil revenue within the studied period leaving no significant impact on nonoil revenue. The result obviously reflects the Nigerian economy and its mono-product characteristic. It is therefore recommended that a conscious policy effort should be made to diversify the economy in a manner that makes revenue to the government multifarious functions.

This study examined the response of foreign private investment flows to fluctuations in foreign exchange rates in Nigeria. The empirical analysis was conducted using ordinary least square Multiple Regression on E-view 10 Econometric model for the period 1981 to 2018. Preliminary analysis was carried out with Jarque Bera normality test and Johnson’s transformation test to confirm normal distribution of data and the transformation is effective. A negative relationship between foreign exchange fluctuation and foreign private investment is found. Also, that Bank lending interest rate, market capitalization, external debts and trade openness have a significant effect on the foreign private capital flows in Nigeria while foreign exchange rate fluctuation does not significantly affect private investment. From the findings of the study, we recommend i) That policymakers in Nigeria should seek and implement appropriate exchange rate that will boost foreign private investment; ii) Ensure enlarge trade relationship by allowing international organizations and citizens of other countries access to the financial market in the domestic economy; iii) They should discourage external borrowing to significantly reduce debt service burden.