1.1 Introduction
Fiscal policy is defined as the deliberate use of government revenue generation through taxation and public expenditure to influence economic activities and achieve macroeconomic objectives such as growth, employment, and price stability (Jhingan, 2018). Monetary policy refers to the actions undertaken by the central bank to regulate money supply, interest rates, and credit conditions in order to maintain price stability and support sustainable economic growth (Mishkin, 2022). In Nigeria, fiscal and monetary policies have remained key tools used by government and monetary authorities to manage economic fluctuations, stabilize prices, and promote investment between 2010 and 2025. Over this period, the economy has experienced varying degrees of policy adjustments aimed at addressing inflationary pressures, exchange rate instability, unemployment, and slow industrial growth (Mankiw, 2021).
This chapter will address the background information that motivated this study, the challenges that prompted it, its aim, and its objectives as a preface to subsequent sections of the study. Additional factors include the study's significance, scope, limitations, research questions and hypotheses, and the definition of technical terms.
1.2 Background of Study
Fiscal and monetary policies are widely recognized as key instruments used by governments and monetary authorities to influence macroeconomic performance. According to Jhingan (2018), fiscal policy involves the manipulation of government revenue and expenditure to achieve economic stability, redistribute income, and promote growth. In the same vein, Mishkin (2022) stated that monetary policy focuses on regulating money supply and interest rates to control inflation and ensure sustainable economic expansion. These two policy tools remain central in macroeconomic management, especially in developing economies where structural imbalances are prevalent.
According to Mankiw (2021), economic growth is driven by a combination of capital accumulation, technological progress, and efficient policy frameworks that support productive investment. Similarly, Todaro and Smith (2021) reported that sustained economic growth in developing countries depends largely on the effectiveness of macroeconomic policies in creating enabling environments for investment, employment generation, and industrial development. Furthermore, they contended that weak institutional structures and policy inconsistency often reduce the effectiveness of fiscal and monetary interventions in achieving desired outcomes.
In Nigeria, fiscal policy has been characterized by fluctuations in government spending patterns, revenue generation challenges, and persistent budget deficits. According to the Central Bank of Nigeria (2023), government expenditure has increased significantly over the years, particularly in infrastructure and recurrent spending, yet the expected impact on economic growth remains uneven. Likewise, inflationary pressures and exchange rate instability have continued to pose major challenges to macroeconomic stability, thereby limiting the effectiveness of fiscal expansionary measures.
Corroborating this assertion, IMF (2022) affirmed that many developing economies, including Nigeria, experience weak fiscal multipliers due to inefficiencies in public expenditure management and corruption-related leakages. Monetary policy in Nigeria has also undergone several adjustments between 2010 and 2025, particularly in response to inflationary trends and external shocks. According to the Central Bank of Nigeria (2022), interest rate policies have been used to control liquidity and stabilize prices, but their impact on investment and output growth has been limited by structural constraints in the financial system. In the same vein, Ogbonna and Onoh (2020) asserted that frequent policy adjustments often create uncertainty in the business environment, thereby discouraging long-term investment decisions.
Furthermore, exchange rate management has remained a critical component of monetary policy in Nigeria. According to Sanusi (2019), exchange rate volatility significantly affects import-dependent economies by increasing production costs and reducing competitiveness. Supporting this position, Iyoha and Oriakhi (2021) stated that persistent depreciation of the naira has contributed to inflationary pressures, thereby weakening the purchasing power of households and reducing overall economic welfare. Additionally, the interaction between fiscal and monetary policies plays a significant role in determining macroeconomic outcomes.
Adebayo (2020) affirmed that policy inconsistency between fiscal expansion and monetary tightening often leads to economic distortions that undermine growth performance. Corroborating this assertion, it was observed that lack of synchronization between policy instruments in Nigeria has contributed to inflation volatility and unstable growth patterns. Relatedly, unemployment remains a major concern in Nigeria despite various policy interventions. According to the National Bureau of Statistics (2022), unemployment rates have remained high due to slow industrialization and inadequate private sector development. In the same vein, World Bank (2021) reported that economic growth in Nigeria has not been sufficiently inclusive, as it has not translated into meaningful job creation for the growing labor force.
In the Nigerian context, the period between 2010 and 2025 has been marked by significant economic reforms, policy shifts, and external shocks such as global oil price fluctuations. Correspondingly, the effectiveness of fiscal and monetary policies during this period remains a subject of continuous academic and policy debate. This study is set against the backdrop of examining how fiscal and monetary policies have influenced economic growth in Nigeria between 2010 and 2025.
1.3 Statement of Problems
Investigation revealed that the Nigerian economy has continued to experience inconsistent growth performance despite the implementation of various fiscal and monetary policy measures between 2010 and 2025. Persistent macroeconomic instability characterized by rising inflation, exchange rate volatility, and fluctuating output levels has weakened the effectiveness of policy interventions aimed at stimulating sustainable economic growth (Mishkin, 2022). The inability of policy instruments to fully stabilize key economic indicators suggests structural weaknesses in policy transmission mechanisms.
Further evidence indicates that expansionary fiscal policies, reflected in rising government expenditure and recurring budget deficits, have not translated into proportional economic growth due to inefficiencies in public financial management and high levels of revenue leakages (Central Bank of Nigeria, 2023). At the same time, monetary policy adjustments such as changes in interest rates and money supply have often produced delayed or limited effects on investment and productivity, thereby constraining their impact on real sector development (Mankiw, 2021). This reflects a weak link between policy formulation and economic outcomes.
It was also observed that inadequate coordination between fiscal and monetary authorities has contributed to policy inconsistencies that undermine macroeconomic stability. High unemployment rates and low industrial output persist, indicating that growth generated over the years has not been sufficiently inclusive or employment-driven (Todaro & Smith, 2021). It is against this backdrop that this study seeks to examine the effects of fiscal and monetary policies on economic growth in Nigeria.
1.4 Purpose of the Study
The purpose of this study is to examine the effects of fiscal and monetary policies on economic growth in Nigeria between 2010 and 2025, with a view to determining how government expenditure, taxation, money supply, interest rates, and policy coordination have influenced economic performance during the period.
1.5 Aim and Objectives of Study
The aim of this study is to examine the effects of fiscal and monetary policies on economic growth in Nigeria from 2010 to 2025. In achieving this aim, the following specific objectives were laid out as follows:
- To evaluate the effect of government expenditure on economic growth in Nigeria from 2010 to 2025.
- To examine the effect of taxation on economic growth in Nigeria from 2010 to 2025.
- To determine the effect of money supply on economic growth in Nigeria from 2010 to 2025.
- To assess the effect of interest rates on economic growth in Nigeria from 2010 to 2025.
- To examine the effect of fiscal and monetary policy coordination on economic growth in Nigeria from 2010 to 2025.
1.6 Research Questions
The study came up with research questions so as to be able to ascertain the above stated objectives. The specific research questions for the study are stated below as follows:
- What effect does government expenditure have on economic growth in Nigeria from 2010 to 2025?
- What effect does taxation have on economic growth in Nigeria from 2010 to 2025?
- What effect does money supply have on economic growth in Nigeria from 2010 to 2025?
- What effect do interest rates have on economic growth in Nigeria from 2010 to 2025?
- What effect does the coordination of fiscal and monetary policies have on economic growth in Nigeria from 2010 to 2025?
1.7 Research Hypotheses
In order to pursue the objective of this study, the following generalized statements have been designed to guide and aids in obtaining the result for the experiment to be conducted. For this work, the null hypothesis will be represented with H0 while the alternative hypothesis will be represented with hypothesis H1.
Hypothesis One
- H0: Government expenditure has no significant effect on economic growth in Nigeria from 2010 to 2025.
- H1: Government expenditure has a significant effect on economic growth in Nigeria from 2010 to 2025.
Hypothesis Two
- H0: Taxation has no significant effect on economic growth in Nigeria from 2010 to 2025.
- H1: Taxation has a significant effect on economic growth in Nigeria from 2010 to 2025.
Hypothesis Three
- H0: Money supply has no significant effect on economic growth in Nigeria from 2010 to 2025.
- H1: Money supply has a significant effect on economic growth in Nigeria from 2010 to 2025.
Hypothesis Four
- H0: Interest rates have no significant effect on economic growth in Nigeria from 2010 to 2025.
- H1: Interest rates have a significant effect on economic growth in Nigeria from 2010 to 2025.
Hypothesis Five
- H0: Fiscal and monetary policy coordination has no significant effect on economic growth in Nigeria from 2010 to 2025.
- H1: Fiscal and monetary policy coordination has a significant effect on economic growth in Nigeria from 2010 to 2025.
1.8 Significance of Study
It is believed that at the completion of the study, the findings will provide empirical evidence on how fiscal and monetary policies influence economic growth in Nigeria between 2010 and 2025. The study will also serve as a reliable source of information for evaluating the effectiveness of government economic stabilization measures.
Furthermore, the results will contribute to existing literature on macroeconomic policy and economic growth in developing economies. It will also enhance understanding of the relationship between policy instruments and economic performance in Nigeria.
Lastly, the findings will provide relevant data for future academic research on fiscal and monetary policy issues.
1.9 Scope of Study
This study focuses on the effects of fiscal and monetary policies on economic growth in Nigeria from 2010 to 2025. The study covers key fiscal policy variables such as government expenditure and taxation, as well as monetary policy variables including money supply and interest rates.
The study is limited to selected economic variables, including government expenditure, taxation, money supply, interest rates, and Gross Domestic Product (GDP). During the study, some challenges were encountered, such as difficulty in obtaining complete and up-to-date economic data, limited time available for the research, and restricted access to some relevant economic records. However, these challenges did not affect the overall outcome of the study.
1.10 Definition of Terms
Fiscal Policy:
Fiscal policy refers to the use of government expenditure, taxation, and borrowing activities to influence economic activities and achieve macroeconomic objectives such as growth, employment, and price stability (Jhingan, 2018).
Monetary Policy:
Monetary policy is the deliberate control of money supply, credit conditions, and interest rates by a central bank to achieve economic stability and sustainable growth (Mishkin, 2022).
Economic Growth:
Economic growth refers to the increase in the value of goods and services produced within an economy over a specific period, usually measured by Gross Domestic Product (GDP) (Todaro & Smith, 2021).
Government Expenditure:
Government expenditure refers to public spending on infrastructure, education, healthcare, security, and other economic activities intended to promote development and growth (Musgrave & Musgrave, 2017).
Taxation:
Taxation is the process through which government imposes compulsory levies on individuals and organizations to generate revenue for public expenditure and economic management (Jhingan, 2018).
Money Supply:
Money supply refers to the total quantity of money available within an economy at a given time, including currency and demand deposits (Mishkin, 2022).
Interest Rate:
Interest rate is the cost of borrowing money or the return earned on savings and investments within the financial system (Mankiw, 2021).
Gross Domestic Product (GDP):
Gross Domestic Product is the total monetary value of all final goods and services produced within a country during a specified period (Todaro & Smith, 2021).
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