Project – The Impact of Inflation on the Purchasing Power of Nigerian Households: A Case Study of Lagos State

Chapter One: Introduction

1.1 Background to the Study

Inflation, broadly defined as the sustained rise in the general price level of goods and services over time, is a key economic indicator that reflects the health of an economy (Mankiw, 2019). It directly affects the purchasing power of households, as rising prices reduce the quantity of goods and services that money can buy. In Nigeria, inflation has been a persistent challenge, with households continually adjusting their spending habits to cope with increasing prices.

Recent economic reports indicate that Nigeria’s inflation rate fell slightly to 18.02% in September 2025, down from 20.12% in August, largely due to a reduction in food inflation (Reuters, 2025a). While this decline is a positive sign, it still represents a high inflationary level compared to global averages. High inflation rates continue to pose significant challenges for households, especially in urban areas where the cost of living is generally higher.

Lagos State, the commercial nerve centre of Nigeria, faces unique economic pressures due to its rapid population growth and urbanization. As the country’s largest city and primary economic hub, Lagos attracts individuals from across Nigeria seeking employment and business opportunities, thereby increasing the demand for goods and services (Okonjo-Iweala, 2020). This urban concentration creates persistent upward pressure on prices.

The increased demand for limited goods and services in Lagos has been compounded by supply-side constraints, such as logistical challenges, inadequate infrastructure, and periodic scarcity of essential commodities. These factors intensify inflationary pressures, making it difficult for households to maintain their standard of living (Samuelson & Nordhaus, 2010).

Policy changes in Nigeria have also contributed to household economic pressures. The removal of fuel subsidies, for instance, led to higher transportation costs, which in turn increased the prices of goods across various sectors. Similarly, the unification of the exchange rate caused production costs to rise, affecting both locally manufactured and imported goods (Reuters, 2025b).

Inflation affects households differently depending on their income levels. Low-income households tend to bear the greatest burden as a larger portion of their income is spent on basic necessities such as food, shelter, and transportation. Middle- and high-income households, while less immediately affected, also face challenges as discretionary spending and savings are curtailed by rising prices (Mankiw, 2019).

The phenomenon of inflation not only reduces household purchasing power but also has broader socio-economic implications. High inflation can exacerbate poverty, increase income inequality, and affect social stability, particularly in urban settings like Lagos where the cost of living is already elevated (Okonjo-Iweala, 2020).

For policymakers, understanding the dynamics of inflation is crucial. Inflation control measures, such as monetary tightening by the Central Bank of Nigeria, subsidies, and price stabilization policies, aim to protect household purchasing power. However, the effectiveness of these measures in Lagos has been mixed, with households continuing to feel the impact of rising prices (Reuters, 2025a).

Several studies have emphasized that urban households often adopt coping strategies to mitigate the effects of inflation. These include reducing consumption, substituting cheaper goods, and seeking alternative income sources. Such strategies reflect the resilience of households but also highlight the persistent economic strain caused by inflation (Samuelson & Nordhaus, 2010).

The impact of inflation on household purchasing power is also interconnected with employment and wage dynamics. In many cases, wages fail to keep pace with the rising cost of living, particularly for informal sector workers who constitute a large segment of Lagos’ workforce. This wage-price gap contributes to declining real income and increased economic hardship (Okonjo-Iweala, 2020).

Understanding how inflation affects households in Lagos State is therefore critical not only for economic planning but also for social policy formulation. By examining the specific factors that influence purchasing power, researchers and policymakers can design targeted interventions to alleviate the negative effects of inflation on urban households.

Given the complexity of economic and policy factors influencing household welfare, this study seeks to investigate the impact of inflation on the purchasing power of households in Lagos State, Nigeria. The research will explore both the quantitative effects of price changes and the qualitative coping strategies adopted by households, providing a comprehensive understanding of this pressing economic issue.

1.2 Statement of the Problem

Persistent inflation in Lagos State has significantly eroded the purchasing power of households, forcing them to allocate a greater proportion of their income to basic necessities such as food, transportation, and housing (Reuters, 2025c).

The rising cost of living has left households with less disposable income for savings and discretionary spending, affecting their ability to improve living standards or invest in education, healthcare, and other essential services (Mankiw, 2019).

Inflation has also exacerbated poverty levels in Lagos, as low-income households struggle to meet basic needs while middle-income households adjust their consumption patterns. The widening gap between income and expenditure has implications for social inequality and economic stability (Okonjo-Iweala, 2020).

Despite government efforts to curb inflation through monetary and fiscal measures, the real impact on household purchasing power remains substantial. Price control policies and subsidies have often been short-term or partially implemented, limiting their effectiveness (Reuters, 2025b).

Households in Lagos employ various coping strategies to navigate inflationary pressures, such as reducing consumption, seeking cheaper substitutes, and engaging in additional income-generating activities. While these strategies provide temporary relief, they do not fully compensate for the loss of purchasing power (Samuelson & Nordhaus, 2010).

The informal sector, which provides employment for a significant portion of Lagos’ population, is particularly vulnerable. Workers in this sector often experience stagnant wages while facing escalating prices, compounding their economic vulnerability (Okonjo-Iweala, 2020).

The problem of inflation is further complicated by global economic factors, including fluctuating oil prices, foreign exchange instability, and supply chain disruptions, which directly affect the cost of goods and services in Lagos (Reuters, 2025a).

The persistent erosion of household purchasing power can lead to reduced consumption, decreased savings, and increased debt levels, ultimately affecting economic growth and development (Mankiw, 2019).

Understanding the specific impact of inflation on households in Lagos State is critical for designing effective policy interventions. This understanding can help policymakers prioritize measures that stabilize prices while protecting household welfare (Samuelson & Nordhaus, 2010).

The research problem therefore centers on identifying the magnitude of inflation’s impact on household purchasing power and evaluating how households respond to these economic pressures (Reuters, 2025c).

Despite the prevalence of inflation-related studies in Nigeria, few focus specifically on Lagos State, which is unique due to its high urbanization, population density, and economic significance. This gap underscores the need for a localized study to provide insights relevant to policy and household welfare.

This study aims to address this problem by examining the relationship between inflation and household purchasing power in Lagos State, providing evidence-based recommendations for mitigating the negative effects of inflation on urban households.

1.3 Objectives of the Study

The primary objectives of this study are:

1. To examine the relationship between inflation and the purchasing power of households in Lagos State.

2. To assess the coping mechanisms employed by households in response to inflationary pressures.

3. To evaluate the effectiveness of government policies in mitigating the impact of inflation on household purchasing power.

1.4 Research Questions

This study seeks to answer the following research questions:

1. What is the extent of the impact of inflation on the purchasing power of households in Lagos State?

2. How do households in Lagos State adjust their consumption patterns in response to inflation?

3. What role do government policies play in alleviating the effects of inflation on household purchasing power?

1.5 Research Hypothesis

H₀: There is no significant relationship between inflation and the purchasing power of households in Lagos State.

H₁: There is a significant negative relationship between inflation and the purchasing power of households in Lagos State.

1.6 Significance of the Study

This study is significant as it provides empirical evidence on the impact of inflation on household purchasing power in Lagos State. The findings will inform policymakers and stakeholders about the effectiveness of current economic policies and highlight areas that require intervention. Additionally, the study will contribute to the existing literature on inflation and its socio-economic effects, providing a basis for future research and policy formulation (Okonjo-Iweala, 2020).

1.7 Scope of the Study

The study focuses on households in Lagos State, Nigeria, and examines the period from 2020 to 2025. This timeframe captures the recent economic challenges faced by households, including the effects of policy reforms such as the removal of fuel subsidies and exchange rate unification. The study will utilize both primary and secondary data sources to achieve its objectives.

1.8 Structure of the Study

The study is organized into five chapters:

• Chapter One: Introduction – Background, statement of the problem, objectives, research questions, hypothesis, significance, scope, and structure.

• Chapter Two: Literature Review – Reviews existing literature on inflation, purchasing power, and related topics.

• Chapter Three: Research Methodology – Describes the research design, population, sampling techniques, data collection methods, and data analysis procedures.

• Chapter Four: Data Analysis and Results – Presents and analyzes the data collected.

• Chapter Five: Summary, Conclusions, and Recommendations – Summarizes the findings, draws conclusions, and provides recommendations.

1.9 Definition of Key Terms

• Inflation: The rate at which the general level of prices for goods and services is rising, and subsequently, the purchasing power of currency is falling (Samuelson & Nordhaus, 2010).

• Purchasing Power: The financial ability of a household to buy goods and services (Mankiw, 2019).

• Households: Groups of individuals living together and sharing resources, typically consisting of family members.

• Lagos State: A state in southwestern Nigeria, encompassing the city of Lagos, which is the country’s largest city and economic hub.

Project – The Impact of Inflation on the Purchasing Power of Nigerian Households: A Case Study of Lagos State