This paper examined the impact of information and communication technology on public sector productivity growth from 2000 to 2019 in Nigeria. It also explained the effects of past or lag productivity growth values on current productivity growth in Nigeria. The paper employed the autoregressive model and technique to estimate and analyze the data. The study reviewed relevant literature on the impact of ICT on productivity. The literature review suggests that ICT is positively related to productivity, but a large number of studies have not demonstrated that in Nigeria. The results revealed that ICT had a significant positive impact on public sector productivity growth in Nigeria. The result also indicated that past-period productivity growth significantly influences current-period public sector productivity growth in Nigeria. That explained the autoregressive nature of productivity growth. The paper also provided evidence that capital, labour, education output and foreign direct investment significantly influence public sector productivity growth in Nigeria. The policy recommendations of the paper include that the Public Sector should be provided with more ICT investments and infrastructures by the Government to optimize ICT potential in the country. The Government should upgrade the ICT skills deficiency among employees in the Public Sector to improve performance, to mention but few.
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