CHAPTER ONE

INTRODUCTION

1.1 Background to the Study

Information and communication technology (ICT) is widely regarded as a general-purpose technology that can raise productivity, lower transaction costs and widen access to markets and public services. Telecommunications is its backbone, because it carries the voice and data traffic on which other ICT applications depend. Developed and emerging economies have used ICT investment to support growth, and comparative cross-country research continues to examine how large that contribution is for developing, emerging and developed economies (Niebel, 2018). For developing countries, acquiring modern telecommunications technology is a means of closing infrastructure gaps and catching up technologically.

The link between technology and growth has a long theoretical history. In the neoclassical model, output growth is explained by growth in capital and labour together with technological progress, which is treated as exogenous (Solow, 1956). In growth-accounting form, this can be written as:

ΔY/Y = ΔA/A + α(ΔK/K) + β(ΔL/L), where Y is output, A is total factor productivity (the technology term), K is capital, L is labour, and α + β = 1.

In this framework, technological improvement raises output per worker even when the capital and labour inputs are unchanged. Endogenous growth theory goes further by explaining technological progress inside the model. It emphasises the positive externalities of knowledge and physical capital investment (Romer, 1986) and of human capital accumulation (Lucas, 1988). On this view, investments that diffuse knowledge, such as telecommunications networks, can raise growth permanently and not merely temporarily. These externalities are expected to be especially valuable for developing economies that can adopt technologies already developed elsewhere.

Nigeria's experience over the past two decades fits this picture. The liberalisation of the telecommunications sector in the early 2000s, which opened the market to licensed private operators, was followed by a very rapid expansion of mobile services (Akinwale, Sanusi & Surujlal, 2018). Mobile subscriptions per 100 people rose from 0.03 in 2000 to 83 in 2016, and the number of subscribers grew from about 30,000 to about 154 million over the same period (Akinwale et al., 2018). Before liberalisation, the fixed-line network was small and unreliable, and telephone services were scarce and expensive for most Nigerians. The introduction of the Global System for Mobile Communications (GSM) and the entry of competing operators were intended to expand teledensity, lower the cost of calls and make services accessible to ordinary users. The expected macroeconomic benefits include job creation, faster and cheaper communication, lower transport and transaction costs, improved security and higher national output.

The empirical evidence on whether these expected benefits have materialised is mixed. Some studies report a long-run relationship between ICT and growth in Nigeria and find that mobile subscriptions have a positive and significant short-run effect on output (Akinwale et al., 2018). Others find that mobile penetration raises real GDP per capita (Musa, Magaji & Salisu, 2023). Yet more recent work reports that the standalone expansion of mobile and fixed-line infrastructure often has a negative or insignificant direct effect on growth and productivity, and that the benefits depend on the quality of governance (Yusuf & AbdulKareem, 2025). Another study finds that ICT indicators had a negligible impact on growth, compared with the stronger influence of financial development (Ikubor et al., 2024). These differences in findings, in the choice of indicators and in the periods covered justify further investigation of the telecommunications–growth relationship, in particular for the period following the liberalisation of the sector.

1.2 Statement of the Problem

Like many developing countries, Nigeria has undertaken reforms of public enterprises, including privatisation and deregulation, with the aim of improving infrastructure and services. The telecommunications reforms were prompted by the inadequate provision of public infrastructure and the poor quality of existing telephone services. In theory, a well-functioning telecommunications sector should raise productivity, because it allows factors of production to be used more efficiently, and should generate spill-over benefits for firms throughout the economy.

The actual outcomes have been less clear-cut. Although the number of subscribers has grown spectacularly (Akinwale et al., 2018), studies that relate telecommunications to growth do not agree on the size, significance or even the sign of its effect. Investment in telecoms with private sector participation was found to be insignificant for growth in one study (Akinwale et al., 2018), and the direct effect of infrastructure expansion was reported to be negative or insignificant when governance quality was not taken into account (Yusuf & AbdulKareem, 2025). This suggests that the benefits of technology acquisition are not automatic, and that policymakers need reliable evidence on what telecommunications investment has contributed to output.

Existing studies also tend to rely on annual data and on broad ICT indices that combine mobile, fixed-line and internet indicators. They may therefore conceal the particular contribution of the mobile segment, which accounted for most of the sector's expansion after liberalisation, and the response of output in the years immediately following the reforms. A quarterly analysis focused on the mobile segment can help to fill this gap.

This study therefore investigates the effect of telecommunications investment and technology acquisition on gross domestic product (GDP) in Nigeria during the early years of liberalisation, using quarterly data and a time-series regression framework. The results are intended to inform policy on whether telecommunications reform has translated into economic growth and on how its contribution could be strengthened.

1.3 Research Questions

The study is guided by the following research questions:

1. What is the effect of telecommunications on gross domestic product (GDP) in Nigeria?
2. How does technology acquisition affect economic growth in Nigeria?

1.4 Objectives of the Study

The specific objectives of the study are to:

1. investigate the effect of telecommunications on gross domestic product in Nigeria; and
2. estimate the statistical significance of the impact of technology acquisition on economic growth in Nigeria.

1.5 Research Hypotheses

The hypotheses are stated in the null form:

H01: There is no significant relationship between telecommunications and GDP in the Nigerian economy.

H02: Technology acquisition has no significant impact on economic growth in Nigeria.

1.6 Significance of the Study

The Nigerian literature on ICT and telecommunications is now substantial, and it has informed policy makers and business operators alike. Recent studies have examined ICT and growth using several indicators and techniques (Akinwale et al., 2018; Ikubor et al., 2024; Musa et al., 2023; Yusuf & AbdulKareem, 2025), but they have reached different conclusions. By concentrating on telecommunications investment in the mobile segment, using quarterly data for the period following liberalisation, this study adds to this body of evidence and helps to clarify why results differ.

The study is also useful to policy makers. If telecommunications investment is shown to contribute significantly to output, this will strengthen the case for policies that encourage private and foreign investment in the sector, widen network coverage and reduce the cost of access. If its contribution is weak, the findings will highlight the need for complementary measures, such as stronger institutions and financial-sector support, which recent studies identify as important conditions for realising the benefits of ICT (Ikubor et al., 2024; Yusuf & AbdulKareem, 2025).

Finally, the study will be of value to researchers and students of telecommunications economics and growth, and to operators and investors who need evidence on how the sector relates to the wider economy.

1.7 Scope of the Study

The study covers ten years, from the first quarter of 1999 to the fourth quarter of 2008 (1999:1–2008:4), and is estimated on a quarterly basis. It is restricted to the telecommunications sector in the Nigerian economy and, within that sector, to the mobile market segment. The period was chosen because it spans the introduction of GSM services and the early post-liberalisation years, and because consistent quarterly data are available for it. The analysis uses time-series regression, estimated by ordinary least squares (OLS), with data on telecommunications investment and GDP indicators.

1.8 Organisation of the Study

The study is organised into five chapters. Chapter One presents the background, problem statement, research questions, objectives, hypotheses, significance and scope. Chapter Two reviews the conceptual, theoretical and empirical literature on telecommunications, technology and growth. Chapter Three describes the research methodology, including the model specification, data sources and estimation techniques. Chapter Four presents and discusses the empirical results. Chapter Five gives the summary of findings, conclusions and policy recommendations.

1.9 Definition of Terms

Information and communication technology (ICT): The set of goods, applications and services used to produce, process, store, transmit and display information, including telecommunications, broadcasting, hardware, software and related services.

Telecommunications: The transmission of information over a distance by electronic means, including telephone, radio, television and data networks.

Technology acquisition: The adoption or acquisition of technology, here represented by investment in telecommunications infrastructure and services.

Teledensity: The number of telephone lines (fixed and mobile) per 100 inhabitants.

Economic growth: The increase in a country's real output of goods and services over time, measured here by gross domestic product.

References

Akinwale, O. Y., Sanusi, A., & Surujlal, J. (2018). An empirical analysis of information and communication technology (ICT) and economic growth in Nigeria. International Journal of eBusiness and eGovernment Studies, 10(1), 129–142.

Ikubor, J. O., Yusuf, A. M., Gajere, J. M., Ojih, A. U., Mikairu, I., & Ali, K. (2024). Impact of ICT synergy and financial development on economic growth in Nigeria. Tanzanian Journal of Multidisciplinary Studies, 1(2), 1–16.

Lucas, R. E. (1988). On the mechanics of economic development. Journal of Monetary Economics, 22(1), 3–42.

Musa, I., Magaji, S., & Salisu, A. (2023). Mobile telecommunication and economic growth: Evidence from ARDL modeling. International Journal of Entrepreneurship, Business, and Creative Economy, 3(1).

Niebel, T. (2018). ICT and economic growth – Comparing developing, emerging and developed countries. World Development, 104, 197–211.

Romer, P. M. (1986). Increasing returns and long-run growth. Journal of Political Economy, 94(5), 1002–1037.

Solow, R. M. (1956). A contribution to the theory of economic growth. Quarterly Journal of Economics, 70(1), 65–94.

Yusuf, Y. T., & AbdulKareem, H. K. K. (2025). Information and communication technology and economic and productivity growth nexus in Nigeria: An evaluation of the role of governance quality. Ilorin Journal of Economic Policy, 12(2), 1–21.