Bukonla Grace Osisanwo - Department of Economics, Olabisi Onabanjo University, Ago- Iwoye, Nigeria.

This study examines the effect of oil fluctuation export earnings on government income and expenditure in Nigeria using time series data from ۱۹۸۶ to ۲۰۱۵. The study utilized co-integration techniques and ordinary least squares as the methods of analysis. The co-integration tests indicate the existence of a long-run equilibrium relationship between oil export earnings, government income, and expenditure. The results also show that oil export earnings have a positive impact on total government income and expenditure. However, the impact of oil export earnings on government revenue was significant. Other variables influencing government income and expenditure are the total income and population size. The policy implication derivable from this study is that increase in government expenditure without a corresponding increase in revenue could widen the budget deficit. Therefore, the government should explore other sources of revenue, especially the non-oil minerals sector, reduce the size of large recurrent expenditures and move towards capital and other investment expenditures.

Oil Export, Government Income, Expenditure, population, Nigeria