CHAPTER ONE

INTRODUCTION

1.1 Background of the Study

Rising income inequality has emerged as a growing concern for policymakers across the globe (Dabla-Norris et al, 2015). In the recent decade, many countries have witnessed the issue of income inequality along with the high economic growth (Piketty, 2014). High income inequality affects the sustainable economic growth and results in economic and financial instability which discourages investments (Jain-Chandra et al, 2016). The effects of income inequality are far more harmful in developing economies. With low income, high level of income disparity resulting to poverty, low education, undernutrition and market inefficiency (Ray, 1998).

After receiving the 2013 Nobel Prize in Economics, Robert Shiller, in response to questions on the prospects of economics, asserted “It’s not the financial crisis per se, but the most important problem we are facing now, today, I think, is rising inequality in the world” (Wilkins, 2013). This assertion is especially true for Africa where, despite a slight decline in recent years, income inequality remains very high, making the continent the second most unequal region after Latin America and the Caribbean (Fosu et al, 2015) and CEMAC Zone is no exception.

The factors attributed to rising income inequality have attracted the attention of researchers and academicians. Researchers have identified human capital as one of the major factors affecting the income distribution among the individuals. Human capital is defined by a cluster of factors like health, education and skill training, which are embodied in an individual. Improvement in all these factors yields in human capital accumulation. As per economic literature, human capital, measured by education attained, serves as a major factor for determining an individual’s earning. In addition to that, it is observed that less educated individuals have fewer opportunities to have higher income as compared to highly educated individuals. High income inequality limits the opportunities to increase human capital for less privileged section of the society, which leads in human capital inequality that again harms the fair income distribution. This results in a vicious cycle (Ray, 1998). Moreover, developing countries try to increase their expenditure on education to improve the human capital accumulation which results in higher economic performance. Education expansion also helps in breaking the intergenerational transmission of poverty and results in reducing the inequality of opportunities (Corak, 2013) that leads in a fairer income distribution. This highlights education as one of the crucial factors affecting the level of income inequality. Therefore, we have considered education attainment to represent human capital in the context of the CEMAC zone to study the effect of human capital on income inequality for the period 2001–2021. Human capital encompassing the knowledge, skills, and health acquired through education, training, and experience is a critical determinant of economic growth and social equity (Becker, 1993). Investments in human capital enhance labor productivity, foster innovation, and promote inclusive development by expanding economic opportunities. However, in the CEMAC zone, human capital development remains severely constrained. The (World Bank, 2020) estimates that a child born in the region reaches only 37% of their potential productivity due to inadequate health and education systems, with even lower outcomes in countries like Chad and the Central African Republic. Low educational attainment, limited access to quality healthcare, and gender disparities in economic participation hinder the region’s ability to leverage human capital for equitable growth.

Human Capital which encompasses education, health, and skills is often routed as a key driver of economic progress and social mobility within the CEMAC zone which remains a subject of ongoing debate and investigation. A vast body in literature in Economics and development studies highlights the importance of human capital for individual well-being and societal progress (World Bank, 2019). Investment in education, healthcare, and skills development are seen as a crucial enhancing productivity, boosting economic growth, reducing poverty. However, the relationship between human capital and income inequality is complex and can vary significantly across context.

Also, since 2019, the term “4.0 industrial revolution” (or “digital revolution”) which refers to the current trend of automation and data exchange in manufacturing technologies and processes, has been noticed intensively on various platforms such as newspapers, academic publications, development forums organized by global organizations (World Bank, United Nations) and government reports. According to the World Development Report by (World Bank, 2019), in the Industrial Revolution 4.0, the global economy is changing and evolving toward the development of technology and the rise of digital platforms. Technology is changing labor demand from employers and pressuring employees to learn new skills such as complex problem-solving, teamwork and adaptability. Besides, the rapid development of digital technology is also changing how people work and the environment where they work. While the global market has been changing and adapting toward the 4.0 industrial revolution, the Association of the CEMAC Zone will face an ageing population in the next few decades. Facing the upcoming challenges of the Industrial Revolution 4.0 and threats from ageing labor in the future, the governments in the CEMAC Zone have raised the importance of improving their human capital development for the CEMAC Zone Community.

Income inequality has been perceived as the primary source of other inequality and poverty (Sen A. & Lewis Wa, 2003). The problem of income inequality has also been emphasized as one of 17 sustainable development goals implied by the United Nations since 2016. The income gap causes divergence in the social hierarchy and worsens efforts to form an equalized society where all individuals should be treated fairly. Besides, the income gap favors advantaged groups to effectively defend and quickly adapt to economic and social shocks, while disadvantaged groups will be easily vulnerable to those changes. Confronting the 4.0 industrial revolution and the depression after the global pandemic, enormous changes in the global economy, on the one hand, open great opportunities for individuals worldwide. Advantageous individuals have the resources to survive and adapt to pressure and changes from the coming revolution and the depression after the pandemic. On the other hand, these fluctuations in the current uncertain world have also created severe threats for poor people. Disadvantageous people face exposure to their jobs, poverty, and many other risks caused by the economic downturn after the COVID-19 pandemic and rapid changes in the market due to the 4.0 industrial revolution. As such, the CEMAC Zone governments have urgently announced an appropriate and inclusive development framework in which all their civilians assess entirely basic needs, approach advanced knowledge, and embrace opportunities to enhance their productivity. Since then, the income gap between advantageous and disadvantageous groups has been narrowed down.

Income inequality in the CEMAC zone is among the highest in Sub-Saharan Africa. For instance, the Central African Republic has a Gini coefficient of 43, reflecting significant income disparities, with 68% of its population living below the national poverty line (World Bank, 2022). Similarly, other CEMAC countries, such as Cameroon and Gabon, exhibit stark contrasts between urban and rural populations, with wealth concentrated among elites (African Development Bank [AfDB], 2021). Corruption, weak institutions, and unequal access to resources further exacerbate these disparities, limiting the redistributive potential of economic growth.

As a result, the inequality in the distribution of education in the world has halved: the average Gini coefficient for human capital inequality dropped from 0.55 in 1960 to 0.28 in 2005. Conversely, the evolution of income inequality has remained quite stable over the long run. The value of the average income Gini coefficient was almost the same in 2005 (0.41) as it had been in 1960 (0.42). This divergent path could indicate that human capital and income inequality are uncorrelated. Conversely, the reduction in human capital inequality could have been offset by other forces that have driven income inequality upwards.

Income inequality is today an important economic fact and has long been a topic of interest among economists. Income is unequally distributed in the world, both within and between countries. The data on income inequality shows that between-country inequality is accounting for the larger part of global income inequality, but despite the predominance of between country inequality, the within-country inequality is an important contributor to total income inequality. Income inequality is by many seen as an important component for a country’s overall development, which makes it important to understand the sources that are affecting it. The positive effect from human capital has been widely recognized in the literature, which suggests that human capital is important for economic growth and favorable for individuals and societies. The literature highlights education as one of the factors affecting the level of income inequality, which is the focus of this thesis. Education is important because it increases the skills and competencies of individuals as well as their productivity. A workers’ productivity is essential for the wage he will be receiving, thus a higher productivity will allow him to earn a higher wage and increase his income. A higher income is allowing people access to better food, proper health care, and clean water among others. A higher income can therefore improve some of the things people value as having a good life. This indication of a positive effect on people’s income resulting from improved education is interesting when looking at income inequality and is the motivation for the empirical investigation.

The relationship between human capital and income inequality is complex. While human capital accumulation can reduce poverty by improving employability and wages, its impact on inequality depends on the inclusivity of educational and economic systems (Odedokun & Round, 2004). In the CEMAC zone, disparities in access to quality education particularly in rural areas and among marginalized groups such as women and girls restrict the equalizing potential of human capital. For example, only 27% of girls in Chad complete primary education, compared to 40% of boys, perpetuating gender-based income gaps (UNESCO, 2023). Moreover, the region’s oil-dependent economies have failed to diversify, limiting job creation and reinforcing income concentration among resource-based elites (IMF, 2023).

Empirical studies suggest that human capital can mitigate income inequality when supported by strong institutions and equitable policies. Barro (2000) found that higher educational attainment reduces inequality in countries with inclusive systems, but in regions with weak governance, such as the CEMAC zone, human capital investments may disproportionately benefit higher-income groups. Similarly, Psacharopoulos and Patrinos (2018) highlight that returns to education are higher for tertiary levels, which are often accessible only to wealthier households in developing contexts, thus widening income gaps. In the CEMAC zone, where corruption and institutional inefficiencies are prevalent, the potential of human capital to reduce inequality is constrained.

Recent policy efforts in the CEMAC region, supported by the IMF and AfDB, emphasize human capital development as a pathway to inclusive growth. Initiatives such as Cameroon’s National Development Strategy 2020–2030 and Gabon’s Emerging Gabon Strategic Plan prioritize education and healthcare reforms (AfDB, 2021). However, challenges such as underfunded schools, inadequate teacher training, and limited healthcare infrastructure persist. Addressing these barriers is critical to harnessing human capital for reducing income inequality and fostering sustainable development.

Based on the above considerations, the relationship between human capital and income inequality has yet to be intensively addressed in the CEMAC Zone context, especially the theoretical link between them. As such, this study has made contributions to the literature on human capital and income inequality. First and foremost, we develop a theoretical connection between human capital and income inequality based on two important theories, including the Kuznets theory and the learning theory.  This study aims to investigate the effect of human capital on income inequality in the CEMAC zone, focusing on the roles of education, health, and institutional quality. By analyzing how human capital development influences income distribution, the study seeks to provide evidence-based recommendations for policies that promote equitable growth and address structural inequalities in the region.

1.2 Statement of The Problem

One of the major problems of many developing nations, particularly countries in the CEMAC Zone is the challenge of high-income inequality. The CEMAC Zone (Central African Economic and Monetary Community) which comprises of Cameroon, Central African Republic, Chad, Equatorial Guinea, Gabon and Republic of Congo faces a persistent challenge of income inequality, which hinders economic growth, social cohesion, and overall development (World Bank, 2020). Despite the region’s rich endowment of natural resources, particularly oil minerals in some member states, over 60% of the population remains mired in poverty. This persistent disparity underscores a critical challenge. While human capital, encompassing education, health, skills and experience is widely recognized as a crucial driver of economic progress and social mobility, (Robert, 2018), the specific impact of human capital on income inequality within the CEMAC Zone remains underexplored and requires rigorous investigation. There is conflicting and incomplete empirical data regarding how human capital affect income inequality. Some research has discovered that human capital has either positive, negative, or negligible effects on income inequality. Therefore, the problem lies in understanding how disparities in education, skills, health contribute to income disparities across the region. Also the CEMAC Zone is confronted with the underperforming education systems, inadequate healthcare access, and insufficient economic inclusion, which collectively undermine the potential of human capital. This issue does not only lead to increased income inequality but also create barriers to social mobility, limiting individual’s ability to participate fully in the economy. Hence, there is need to investigate the relationship between human capital development and income inequality, focusing on identifying casual pathways, individual barriers, and potential policy interventions that could ameliorate this pressing issue. The findings of this research could inform policy makers and stakeholders on effective frameworks to reduce income disparities and enhance social cohesion in the CEMAC Zone. Also, by addressing the problem statement, it will contribute to the broader knowledge base on human capital development, income inequality, and effective policies for promoting equitable economic growth.

1.3 Research Questions

1.3.1 Main Research Question

What is the effect of Human Capital on Income inequality in the CEMAC Zone?

1.3.2 Specific Research Questions

1. What is the effect of educational attainment on income inequality in the CEMAC Zone?
2. What is the effect of health status on income inequality in the CEMAC Zone?
3. What is the effect of work experience on income inequality in the CEMAC Zone?

1.4 Research Objectives

1.4.1 Main Objective

To Examine the effect of Human Capital on Income Inequality in the CEMAC Zone.

1.4.2 Specific Objective

1. To Evaluate the effect of educational attainment on income Inequality in the CEMAC Zone.
2. To investigate the impact of health Status on income inequality in the CEMAC Zone.
3. To analyze the impact of work experience on income inequality in the CEMAC Zone.