Internally generated revenue and capital expenditure of the public sector in the southwestern states of Nigeria

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Type of the article: Research Article

Abstract
The paper examines the effect of internally generated revenue (IGR) on the capital expenditure of the southwestern states in Nigeria. Tax, fines, and fees, as well as earnings and sales, are used to measure the revenue generated through internally generated revenue (IGR), while the amount spent on the provision of capital assets like roads, building construction, and other social amenities is used to measure capital expenditure incurred during the period under review. Secondary data were collected from each of the six southwestern states of Nigeria’s Internal Revenue Service Boards, the Office of the Accountant General of each of the six Southwestern States, the Central Bank of Nigeria (CBN), and the National Bureau of Statistics (NBS) over 1999–2023. Descriptive statistics, correlation analysis, and multiple regression methods with other diagnostic tests, such as the unit root test and heteroskedasticity, were conducted. Findings showed that both taxes and earnings and sales have a positive and significant effect on capital expenditure in southwest Nigeria. In comparison, fees and fines have a negative and significant influence on capital expenditure. The study concluded that there is a significant relationship between internally generated revenue (IGR) and the development of capital expenditure in the southwestern states of Nigeria. It is recommended that the government focus on strategies to increase revenue through IGR.

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    • Table 1. Summary of variable measurement
    • Table 2. Descriptive analysis
    • Table 3. Unit root test
    • Table 4. Correlation matrix
    • Table 5. Coefficient covariance matrix
    • Table 6. Heteroskedasticity test
    • Table 7. Regression results
    • Conceptualization
      Wasiu Olaitan, Mofoluwaso Ojedele, Babatunde Moses Ololade
    • Data curation
      Wasiu Olaitan, Mofoluwaso Ojedele, Babatunde Moses Ololade
    • Formal Analysis
      Wasiu Olaitan, Mofoluwaso Ojedele, Babatunde Moses Ololade
    • Funding acquisition
      Wasiu Olaitan, Mofoluwaso Ojedele, Babatunde Moses Ololade
    • Investigation
      Wasiu Olaitan, Mofoluwaso Ojedele, Babatunde Moses Ololade
    • Methodology
      Wasiu Olaitan, Mofoluwaso Ojedele, Babatunde Moses Ololade
    • Project administration
      Wasiu Olaitan, Mofoluwaso Ojedele, Babatunde Moses Ololade
    • Resources
      Wasiu Olaitan, Mofoluwaso Ojedele, Babatunde Moses Ololade
    • Software
      Wasiu Olaitan, Mofoluwaso Ojedele, Babatunde Moses Ololade
    • Supervision
      Wasiu Olaitan, Mofoluwaso Ojedele, Babatunde Moses Ololade
    • Validation
      Wasiu Olaitan, Mofoluwaso Ojedele, Babatunde Moses Ololade
    • Visualization
      Wasiu Olaitan, Mofoluwaso Ojedele, Babatunde Moses Ololade
    • Writing – original draft
      Wasiu Olaitan, Mofoluwaso Ojedele, Babatunde Moses Ololade
    • Writing – review & editing
      Wasiu Olaitan, Mofoluwaso Ojedele, Babatunde Moses Ololade