THE IMPACT OF HUMAN RESOURCE ACCOUNTING ON THE PROFITABILITY OF A FIRM

CHAPTER ONE: INTRODUCTION

1.1 Background of the Study

Human Resource Accounting (HRA) is the process of identifying, measuring, recording, and reporting the value of human resources (employees) as assets in the financial statements of an organization. Traditional accounting treats expenditures on human resources (recruitment, training, development) as expenses (costs) rather than investments (assets). HRA challenges this convention by arguing that employees are valuable assets that generate future economic benefits, similar to physical assets (machinery, equipment, buildings). Therefore, expenditures on human capital should be capitalized (treated as assets) and amortized over the expected period of benefit, rather than expensed immediately (Flamholtz, 1999). (Flamholtz, 1999)

The concept of Human Resource Accounting emerged in the 1960s and 1970s, pioneered by researchers such as Rensis Likert, Eric Flamholtz, and William Pyle. Likert (1967) argued that traditional accounting failed to capture the value of an organization’s human resources, leading to understatement of assets and overstatement of expenses. He proposed that firms should measure and report human asset values to provide a more complete picture of organizational resources. Flamholtz (1999) developed several models for measuring human resource value: historical cost model (capitalizing recruitment and training costs), replacement cost model (cost to replace existing employees), and economic value model (present value of future earnings). Despite decades of research, HRA has not been widely adopted in practice due to measurement difficulties, subjectivity, and lack of accounting standards (Likert, 1967; Flamholtz, 1999). (Flamholtz, 1999; Likert, 1967)

Profitability is the ability of a firm to generate earnings in excess of its expenses over a specified period. Profitability is the ultimate goal of most business organizations and a key indicator of management effectiveness. Profitability is measured using various metrics: gross profit margin, operating profit margin, net profit margin, return on assets (ROA), return on equity (ROE), and return on investment (ROI). For most firms, human resources (employees) are the most significant asset, accounting for 30-70% of total operating costs (salaries, wages, benefits, training). Therefore, decisions about human resource investment (recruitment, training, development) have a direct impact on profitability (Pandey, 2015). (Pandey, 2015)

The relationship between Human Resource Accounting and profitability is based on the premise that investments in human capital (training, development, recruitment of talented employees) generate future economic benefits (increased productivity, innovation, customer satisfaction, reduced turnover). When these investments are treated as assets (capitalized) rather than expenses, reported profits increase (because expenses are lower). However, the economic reality is that human resource investments genuinely increase organizational capabilities and future cash flows, which should be reflected in financial statements (Becker, 1964). (Becker, 1964)

Several models of Human Resource Accounting have been developed (Flamholtz, 1999). (Flamholtz, 1999)

Historical Cost Model: This model capitalizes the actual costs incurred to acquire and develop human resources (recruitment, selection, hiring, training, development). These costs are amortized over the expected service life of the employee. The advantage is objectivity (costs are verifiable). The disadvantage is that historical cost may not reflect current value (inflation, changes in employee skills).

Replacement Cost Model: This model estimates the cost to replace existing employees with equivalent employees. Replacement cost includes recruitment, selection, hiring, and training costs for replacements. The advantage is relevance (reflects current economic conditions). The disadvantage is subjectivity (estimates vary).

Opportunity Cost Model: This model values employees based on their value in alternative uses (their opportunity cost). The advantage is economic relevance. The disadvantage is difficulty in determination.

Economic Value Model (Present Value of Future Earnings): This model estimates the present value of the employee’s future earnings (salary, wages, benefits) discounted to present value. The advantage is economic relevance. The disadvantage is subjectivity (assumptions about future earnings, discount rate, employee tenure).

Stochastic Rewards Valuation Model: This model estimates the expected value of an employee’s future services, considering the probability of employee departure (turnover) and the employee’s expected role. This is the most sophisticated model but also the most complex.

The theoretical underpinnings of HRA include several theories. Human Capital Theory (Becker, 1964) argues that education, training, and health are investments in human capital that increase productivity and earnings. Firms that invest in employee training and development increase their human capital stock, which should be reflected as an asset. Resource-Based View (RBV) (Barney, 1991) argues that human resources (skills, knowledge, experience, organizational culture) are valuable, rare, difficult to imitate, and organized (VRIO), making them sources of sustainable competitive advantage. Human resources should be treated as strategic assets. Stakeholder Theory (Freeman, 1984) argues that employees are key stakeholders whose interests must be balanced with shareholders. Reporting human asset values provides transparency to employees and other stakeholders. (Barney, 1991; Becker, 1964; Freeman, 1984)

In Nigeria, Human Resource Accounting has received limited attention. Most Nigerian firms follow traditional accounting (expensing human resource costs). However, there is growing recognition that human capital is a critical driver of profitability, particularly in service industries (banking, telecommunications, insurance, professional services) where employees are the primary value creators. The adoption of International Financial Reporting Standards (IFRS) has not changed the treatment of human resource costs (still expensed), but some firms voluntarily disclose human capital metrics (training hours, turnover rates, employee satisfaction) in their annual reports (Okoye, Okafor, and Nnamdi, 2020). (Okoye et al., 2020)

The Nigerian banking sector is particularly relevant for HRA because banks rely heavily on skilled employees (relationship managers, loan officers, financial analysts, IT professionals) to generate revenue. Investments in employee training and development should enhance service quality, customer satisfaction, loan quality, and ultimately profitability. However, traditional accounting does not capture these investments as assets, potentially understating bank value and distorting performance comparisons (Eze and Okafor, 2021). (Eze and Okafor, 2021)

The COVID-19 pandemic (2020-2021) has highlighted the importance of human resources. During the pandemic, many firms invested in remote work infrastructure, employee health and safety, mental health support, and upskilling/reskilling. These investments will generate future benefits (increased productivity, employee loyalty, adaptability). However, traditional accounting treats these as expenses, reducing reported profits during the pandemic. HRA would treat them as assets, reflecting their long-term value (Ogunyemi and Adewale, 2021). (Ogunyemi and Adewale, 2021)

This study examines the impact of Human Resource Accounting on the profitability of a firm, focusing on the relationship between human capital investment (training, recruitment, development) and profitability (ROA, ROE, NPM). The study compares traditional accounting (expensing human resource costs) with HRA (capitalizing and amortizing human resource costs) to determine the effect on reported profitability.

1.2 Statement of the Problem

Despite the theoretical importance of human capital as a driver of profitability, traditional accounting treats human resource expenditures (recruitment, training, development) as expenses rather than assets. This has several problematic consequences.

First, traditional accounting understates assets. Human resources (employees) are valuable assets that generate future economic benefits, but they are not reported on the balance sheet. This understates total assets, leading to distorted financial ratios (return on assets, asset turnover, debt-to-assets). Managers may be discouraged from investing in human capital because it reduces reported profits in the short term (Flamholtz, 1999). (Flamholtz, 1999)

Second, traditional accounting overstates expenses. Expenditures on recruitment, training, and development are treated as expenses in the period incurred, even though they generate benefits over multiple years (e.g., trained employees remain with the firm for years). This reduces reported profits in the short term, potentially leading to underinvestment in human capital (managers avoid training to boost short-term profits) (Becker, 1964). (Becker, 1964)

Third, the relationship between human capital investment and profitability is not well understood in the Nigerian context. Do firms that invest more in employee training and development have higher profitability? If so, by how much? Which types of human capital investments (recruitment, training, development, retention) have the strongest impact? Without empirical evidence, managers cannot justify human capital investments to boards and shareholders (Okoye et al., 2020). (Okoye et al., 2020)

Fourth, the impact of HRA on reported profitability is not well documented. If firms adopted HRA (capitalizing and amortizing human resource costs), how would reported profits change? Would profitable firms become more profitable? Would loss-making firms become profitable? The magnitude of the impact is unknown (Eze and Okafor, 2021). (Eze and Okafor, 2021)

Fifth, the adoption of HRA faces practical challenges (measurement difficulty, subjectivity, lack of accounting standards). Even if HRA is theoretically superior, firms may be reluctant to adopt it. The cost-benefit of HRA adoption is unknown (Flamholtz, 1999). (Flamholtz, 1999)

Sixth, the COVID-19 pandemic has increased human capital investment (remote work infrastructure, health and safety, mental health support, upskilling). Traditional accounting treats these as expenses, reducing reported profits during the pandemic. HRA would treat them as assets, reflecting their long-term value. The impact of pandemic-related human capital investment on profitability is unknown (Ogunyemi and Adewale, 2021). (Ogunyemi and Adewale, 2021)

Seventh, there is a significant gap in the empirical literature on Human Resource Accounting and profitability in Nigeria. Most studies are theoretical (discussing HRA concepts) rather than empirical (testing relationships). Few studies have estimated the impact of HRA on reported profitability using real firm data. This study addresses these gaps (Okoye et al., 2020). (Okoye et al., 2020)

Therefore, the central problem this study seeks to address can be stated as: Traditional accounting treats human resource expenditures as expenses rather than assets, understating assets and overstating expenses. The relationship between human capital investment and profitability is not well understood in Nigeria. The impact of HRA on reported profitability is not documented. This study addresses these gaps by examining the impact of Human Resource Accounting on the profitability of a firm.

1.3 Aim of the Study

The aim of this study is to examine the impact of Human Resource Accounting on the profitability of a firm, with a view to determining the relationship between human capital investment (recruitment, training, development) and profitability (ROA, ROE, NPM), estimating the effect of HRA adoption on reported profitability, and proposing evidence-based recommendations for HRA adoption.

1.4 Objectives of the Study

The specific objectives of this study are to:

1. Examine the relationship between human capital investment (training expenditure per employee) and profitability (ROA, ROE, net profit margin) of firms.
2. Examine the relationship between employee turnover rate and profitability.
3. Examine the relationship between employee productivity (revenue per employee) and profitability.
4. Estimate the impact of Human Resource Accounting (capitalizing and amortizing human resource costs) on reported profitability compared to traditional accounting (expensing human resource costs).
5. Determine which human capital investment (recruitment, training, development, retention) has the strongest impact on profitability.
6. Compare the impact of human capital investment on profitability before and during the COVID-19 pandemic.
7. Assess the challenges of HRA adoption (measurement difficulty, subjectivity, lack of standards).
8. Propose evidence-based recommendations for HRA adoption to improve profitability reporting and decision-making.

1.5 Research Questions

The following research questions guide this study:

1. What is the relationship between human capital investment (training expenditure per employee) and profitability (ROA, ROE, net profit margin)?
2. What is the relationship between employee turnover rate and profitability?
3. What is the relationship between employee productivity (revenue per employee) and profitability?
4. What is the impact of Human Resource Accounting (capitalizing and amortizing human resource costs) on reported profitability compared to traditional accounting?
5. Which human capital investment (recruitment, training, development, retention) has the strongest impact on profitability?
6. How did the COVID-19 pandemic affect the relationship between human capital investment and profitability?
7. What are the challenges of HRA adoption (measurement difficulty, subjectivity, lack of standards)?
8. What recommendations can be proposed for HRA adoption?

1.6 Research Hypotheses

Based on the research objectives and questions, the following hypotheses are formulated. Each hypothesis is presented with both a null (H₀) and an alternative (H₁) statement.

Hypothesis One (Training Expenditure and Profitability)

• H₀₁: There is no significant relationship between training expenditure per employee and profitability (ROA) of firms.
• H₁₁: There is a significant positive relationship between training expenditure per employee and profitability (ROA) of firms.

Hypothesis Two (Employee Turnover and Profitability)

• H₀₂: There is no significant relationship between employee turnover rate and profitability (ROA) of firms.
• H₁₂: There is a significant negative relationship between employee turnover rate and profitability (ROA) of firms.

Hypothesis Three (Employee Productivity and Profitability)

• H₀₃: There is no significant relationship between employee productivity (revenue per employee) and profitability (ROA) of firms.
• H₁₃: There is a significant positive relationship between employee productivity (revenue per employee) and profitability (ROA) of firms.

Hypothesis Four (HRA vs. Traditional Accounting)

• H₀₄: There is no significant difference in reported profitability (ROA) between Human Resource Accounting (capitalizing and amortizing human resource costs) and traditional accounting (expensing human resource costs).
• H₁₄: Reported profitability (ROA) is significantly higher under Human Resource Accounting than under traditional accounting.

Hypothesis Five (Recruitment vs. Training vs. Development)

• H₀₅: There is no significant difference in the impact of recruitment expenditure, training expenditure, and development expenditure on profitability.
• H₁₅: Training expenditure has a significantly stronger impact on profitability than recruitment expenditure or development expenditure.

Hypothesis Six (COVID-19 Impact)

• H₀₆: There is no significant difference in the relationship between human capital investment and profitability before and during the COVID-19 pandemic.
• H₁₆: The relationship between human capital investment and profitability was significantly stronger (more positive) during the COVID-19 pandemic than before.

Hypothesis Seven (Industry Differences)

• H₀₇: There is no significant difference in the relationship between human capital investment and profitability between manufacturing and service firms.
• H₁₇: The relationship between human capital investment and profitability is significantly stronger for service firms than for manufacturing firms.

1.7 Significance of the Study

This study holds significance for multiple stakeholders as follows:

For Financial Managers and CFOs:
The study provides empirical evidence on the relationship between human capital investment and profitability. Financial managers can use this evidence to: (1) justify human capital investment budgets (training, development, recruitment); (2) evaluate the ROI of training programs; (3) set employee productivity targets; (4) reduce turnover costs; and (5) advocate for HRA adoption.

For Human Resource (HR) Managers:
HR managers are responsible for recruitment, training, and development. The study provides evidence that HR investments impact profitability, enabling HR managers to: (1) demonstrate HR’s contribution to firm performance; (2) secure budgets for HR programs; (3) design training programs that maximize ROI; and (4) develop retention strategies.

For Chief Executive Officers (CEOs) and Boards:
CEOs and boards are responsible for overall firm performance. The study provides evidence that human capital is a strategic asset, not just a cost. CEOs can use this evidence to: (1) prioritize human capital investment; (2) adopt HRA for better performance measurement; (3) benchmark human capital metrics against competitors; and (4) communicate human capital value to investors.

For Investors and Financial Analysts:
Investors and analysts evaluate firms based on reported profitability. Traditional accounting understates assets and overstates expenses, leading to undervaluation of human-capital-intensive firms (e.g., technology, consulting, banking). This study provides evidence that investors should adjust financial statements to reflect human capital value when comparing firms.

For Standard-Setters (IASB, FASB, FRC Nigeria):
Accounting standard-setters determine how human resource costs are treated. The study provides evidence that the current treatment (expensing) is inconsistent with the asset definition (future economic benefits). Standard-setters can use this evidence to: (1) reconsider the treatment of human resource costs; (2) develop HRA standards; (3) require disclosure of human capital metrics; and (4) encourage voluntary HRA adoption.

For Academics and Researchers:
This study contributes to the literature on Human Resource Accounting and profitability in several ways. First, it provides empirical evidence from a developing economy context (Nigeria), which is underrepresented. Second, it estimates the impact of HRA adoption on reported profitability. Third, it examines the moderating effect of COVID-19. The study provides a foundation for future research.

For the Nigerian Economy:
Human capital is Nigeria’s most valuable resource. Firms that invest in employee training and development will be more productive, innovative, and profitable, contributing to economic growth. By providing evidence on the profitability impact of human capital investment, this study encourages firms to invest in their employees, leading to higher productivity and economic development.

1.8 Scope of the Study

The scope of this study is defined by the following parameters:

Content Scope: The study focuses on the impact of Human Resource Accounting on the profitability of a firm. Specifically, it examines: (1) human capital investment (recruitment expenditure, training expenditure, development expenditure, employee turnover rate, employee productivity); (2) profitability (ROA, ROE, net profit margin); (3) comparison of traditional accounting (expensing) vs. HRA (capitalizing and amortizing); (4) COVID-19 impact; and (5) industry differences (manufacturing vs. services). The study does not examine other intangible assets (brand, patents, customer relationships) except as they relate to human capital.

Organizational Scope: The study covers listed firms on the Nigerian Exchange Group (NGX) across multiple sectors: manufacturing (food, beverages, chemicals, plastics, building materials), services (banking, telecommunications, insurance, professional services), and conglomerates. The study excludes very small firms (micro enterprises) and unlisted firms.

Geographic Scope: The study covers Nigeria. All listed firms are headquartered in Nigeria. Findings may be generalizable to other African stock exchanges (Ghana, Kenya, South Africa) with similar market characteristics, but caution is warranted.

Time Scope: The study covers a 5-year period from 2019 to 2023, encompassing pre-COVID (2019), COVID-19 pandemic (2020-2021), and post-pandemic recovery (2022-2023). This period enables analysis of the relationship before, during, and after the pandemic.

Data Sources: The study uses secondary data from: (1) annual financial statements (balance sheet, income statement, notes) of listed firms (2019-2023); (2) human capital metrics (training expenditure, employee turnover, revenue per employee) from annual reports; (3) Nigerian Exchange Group (NGX) factbooks; and (4) industry reports.

Theoretical Scope: The study is grounded in human capital theory, resource-based view, and stakeholder theory. These theories provide the conceptual lens for understanding the relationship between human capital investment and profitability.

1.9 Definition of Terms

The following key terms are defined operationally as used in this study:

Term	Definition
Human Resource Accounting (HRA)	The process of identifying, measuring, recording, and reporting the value of human resources (employees) as assets in the financial statements of an organization.
Human Capital	The stock of knowledge, skills, abilities, experience, and health that employees possess, which contributes to productivity and economic value.
Human Capital Investment	Expenditures on recruitment, selection, hiring, training, development, and retention of employees.
Training Expenditure	Costs incurred to improve employees’ skills, knowledge, and competencies for their current jobs.
Development Expenditure	Costs incurred to prepare employees for future roles and responsibilities (career development, leadership training).
Recruitment Expenditure	Costs incurred to attract, select, and hire new employees (advertising, interviews, testing, relocation).
Employee Turnover Rate	The percentage of employees who leave the organization (voluntarily or involuntarily) in a given year. High turnover indicates retention problems.
Employee Productivity	Revenue generated per employee (total revenue divided by number of employees). Measures employee efficiency.
Return on Assets (ROA)	Net income divided by total assets. Measures how efficiently a firm uses its assets to generate profit.
Return on Equity (ROE)	Net income divided by shareholders’ equity. Measures the return generated on shareholders’ investment.
Net Profit Margin	Net income divided by sales. Measures the percentage of each Naira of sales that remains as profit.
Historical Cost Model (HRA)	A HRA model that capitalizes actual costs incurred to acquire and develop human resources (recruitment, training, development) and amortizes them over the expected service life of the employee.
Replacement Cost Model (HRA)	A HRA model that estimates the cost to replace existing employees with equivalent employees.
Economic Value Model (HRA)	A HRA model that estimates the present value of the employee’s future earnings (salary, wages, benefits) discounted to present value.
Traditional Accounting	The conventional accounting treatment that expenses all human resource costs (recruitment, training, development) in the period incurred.

CHAPTER TWO: LITERATURE REVIEW

2.1 Introduction

This chapter presents a comprehensive review of literature relevant to the impact of Human Resource Accounting (HRA) on the profitability of a firm. The review is organized into five main sections. First, the conceptual framework section defines and explains the key constructs: Human Resource Accounting, human capital, training expenditure, employee turnover, employee productivity, profitability (ROA, ROE, NPM), and HRA models (historical cost, replacement cost, economic value). Second, the theoretical framework section examines the theories that underpin the relationship between HRA and profitability, including human capital theory, resource-based view, stakeholder theory, and signaling theory. Third, the empirical review section synthesizes findings from previous studies on HRA and profitability globally and in Nigeria. Fourth, the regulatory framework section examines the Nigerian context, including IFRS and IASB standards. Fifth, the summary of literature identifies gaps that this study seeks to address.

The purpose of this literature review is to situate the current study within the existing body of knowledge, identify areas of consensus and controversy, and justify the research questions and hypotheses formulated in Chapter One (Creswell and Creswell, 2018). By critically engaging with prior scholarship, this chapter establishes the intellectual foundation upon which the present investigation is built. (Creswell and Creswell, 2018)

2.2 Conceptual Framework

2.2.1 The Concept of Human Resource Accounting (HRA)

Human Resource Accounting (HRA) is the process of identifying, measuring, recording, and reporting the value of human resources (employees) as assets in the financial statements of an organization. Traditional accounting treats expenditures on human resources (recruitment, training, development) as expenses (costs) rather than investments (assets). HRA challenges this convention by arguing that employees are valuable assets that generate future economic benefits, similar to physical assets (machinery, equipment, buildings). Therefore, expenditures on human capital should be capitalized (treated as assets) and amortized over the expected period of benefit, rather than expensed immediately (Flamholtz, 1999). (Flamholtz, 1999)

The objectives of HRA include (Flamholtz, 1999). (Flamholtz, 1999)

• To provide information for human resource management decisions (recruitment, training, development, retention).
• To enable the measurement of the return on investment (ROI) in human capital.
• To provide information to investors and stakeholders about the value of human assets.
• To improve the quality of financial reporting by reflecting all assets (including human assets).
• To motivate managers to invest in human capital (by showing the asset value).

HRA recognizes that human resources possess three key characteristics of assets (Flamholtz, 1999). (Flamholtz, 1999)

• Future economic benefits: Employees generate future revenues, profits, and growth.
• Control: The organization controls the employee’s work (within limits) and benefits from their services.
• Past transactions: The organization has incurred costs to acquire and develop the employee (recruitment, training).

Despite these arguments, HRA has not been widely adopted in practice due to measurement difficulties, subjectivity, and lack of accounting standards. However, many organizations voluntarily disclose human capital metrics (training hours, turnover rates, employee satisfaction) in their annual reports (Flamholtz, 1999). (Flamholtz, 1999)

2.2.2 Models of Human Resource Accounting

Several models of HRA have been developed (Flamholtz, 1999). (Flamholtz, 1999)

Historical Cost Model: This model capitalizes the actual costs incurred to acquire and develop human resources (recruitment, selection, hiring, training, development). These costs are amortized over the expected service life of the employee. The advantage is objectivity (costs are verifiable). The disadvantage is that historical cost may not reflect current value (inflation, changes in employee skills). The historical cost model is the most practical and objective, making it the most suitable for adoption in practice (Flamholtz, 1999). (Flamholtz, 1999)

Replacement Cost Model: This model estimates the cost to replace existing employees with equivalent employees. Replacement cost includes recruitment, selection, hiring, and training costs for replacements. The advantage is relevance (reflects current economic conditions). The disadvantage is subjectivity (estimates vary). The replacement cost model is useful for insurance purposes (key person insurance) but is more subjective (Flamholtz, 1999). (Flamholtz, 1999)

Opportunity Cost Model: This model values employees based on their value in alternative uses (their opportunity cost). The advantage is economic relevance. The disadvantage is difficulty in determination. This model has not been widely adopted (Flamholtz, 1999). (Flamholtz, 1999)

Economic Value Model (Present Value of Future Earnings): This model estimates the present value of the employee’s future earnings (salary, wages, benefits) discounted to present value. The advantage is economic relevance. The disadvantage is subjectivity (assumptions about future earnings, discount rate, employee tenure). This model is conceptually appealing but difficult to implement (Flamholtz, 1999). (Flamholtz, 1999)

Stochastic Rewards Valuation Model: This model estimates the expected value of an employee’s future services, considering the probability of employee departure (turnover) and the employee’s expected role. This is the most sophisticated model but also the most complex. It is primarily used for research purposes (Flamholtz, 1999). (Flamholtz, 1999)

For this study, the Historical Cost Model is adopted because it is the most objective, verifiable, and practical for adoption in Nigerian firms.

2.2.3 The Concept of Human Capital Investment

Human capital investment refers to expenditures made by organizations (and individuals) to increase the stock of human capital (knowledge, skills, abilities, experience, health). In the organizational context, human capital investment includes (Becker, 1964). (Becker, 1964)

Recruitment Expenditure: Costs incurred to attract, select, and hire new employees. Includes advertising, agency fees, interviews, testing, background checks, and relocation costs. Recruitment expenditure is necessary to acquire new human capital.

Training Expenditure: Costs incurred to improve employees’ skills, knowledge, and competencies for their current jobs. Includes on-the-job training, classroom training, e-learning, workshops, seminars, and certification programs. Training expenditure increases the productivity of existing human capital.

Development Expenditure: Costs incurred to prepare employees for future roles and responsibilities. Includes leadership development, management training, mentorship programs, and tuition reimbursement for advanced degrees. Development expenditure builds future human capital.

Retention Expenditure: Costs incurred to keep valuable employees from leaving. Includes competitive salaries, bonuses, benefits (health insurance, pension), flexible work arrangements, and employee engagement programs. Retention expenditure reduces turnover, preserving human capital.

Health and Safety Expenditure: Costs incurred to protect employee health and safety. Includes health insurance, wellness programs, ergonomic equipment, and personal protective equipment (PPE). Health expenditure maintains human capital.

This study focuses on training expenditure, employee turnover rate, and employee productivity as key measures of human capital investment and efficiency.

2.2.4 The Concept of Profitability

Profitability is the ability of a firm to generate earnings in excess of its expenses over a specified period. Profitability is the ultimate goal of most business organizations and a key indicator of management effectiveness. Profitability is measured using various metrics (Pandey, 2015). (Pandey, 2015)

Return on Assets (ROA): Net income divided by total assets. ROA = Net Income / Total Assets. Measures how efficiently a firm uses its assets to generate profit. ROA is widely used in HRA research because HRA increases reported assets (human assets are added to the balance sheet), which affects ROA.

Return on Equity (ROE): Net income divided by shareholders’ equity. ROE = Net Income / Shareholders’ Equity. Measures the return generated on shareholders’ investment. ROE is affected by leverage.

Net Profit Margin (NPM): Net income divided by sales. NPM = Net Income / Sales. Measures the percentage of each Naira of sales that remains as profit. NPM is affected by expense recognition (expensing vs. capitalizing human resource costs).

Gross Profit Margin: Gross profit divided by sales. Gross Profit Margin = (Sales – Cost of Goods Sold) / Sales. Measures the percentage of sales remaining after deducting production costs.

Operating Profit Margin: Operating income divided by sales. Operating Profit Margin = EBIT / Sales. Measures profitability from core operations, excluding financing and tax effects.

For HRA research, ROA and NPM are the most relevant because HRA affects both assets (ROA) and expenses (NPM).

2.2.5 The Relationship Between HRA and Profitability

The relationship between HRA and profitability operates through two mechanisms: (1) the economic effect (human capital investment improves actual profitability), and (2) the measurement effect (HRA changes reported profitability).

Economic Effect: Human capital investment (training, development) increases employee productivity, innovation, customer satisfaction, and reduces turnover. These improvements lead to higher sales, lower costs, and higher actual profitability. Studies have found a positive correlation between training expenditure and ROA (r = 0.25-0.35) (Becker, 1964). (Becker, 1964)

Measurement Effect: Traditional accounting expenses human resource costs, reducing reported profits. HRA capitalizes human resource costs (treats them as assets) and amortizes them over the expected service life, increasing reported profits (because expenses are lower). HRA also increases total assets (human assets are added to the balance sheet), which reduces ROA (if profit increase is less than asset increase). The net effect on ROA depends on the magnitude of profit increase vs. asset increase (Flamholtz, 1999). (Flamholtz, 1999)

For example, a firm spends ₦10 million on training. Traditional accounting: expense ₦10 million, reducing profit by ₦10 million. HRA (assuming 5-year amortization): capitalize ₦10 million as an asset, amortize ₦2 million per year (expense ₦2 million), reducing profit by only ₦2 million. Profit is ₦8 million higher under HRA. Assets increase by ₦10 million (human asset) minus amortization, so ROA effect depends on the profit increase vs. asset increase (Flamholtz, 1999). (Flamholtz, 1999)

2.3 Theoretical Framework

This section presents the theories that provide the conceptual lens for understanding the impact of Human Resource Accounting on profitability. Four theories are discussed: human capital theory, resource-based view, stakeholder theory, and signaling theory.

2.3.1 Human Capital Theory

Human capital theory, developed by Becker (1964) and Schultz (1961), argues that education, training, and health are investments in human capital that increase productivity and earnings. Individuals invest in their own human capital (education, training) to increase their future earnings. Firms invest in employee training and development to increase employee productivity, which increases firm profitability. Human capital is analogous to physical capital (machinery, equipment): both require investment, both generate future returns, and both depreciate over time (Becker, 1964). (Becker, 1964)

Human capital theory has three key implications for HRA (Becker, 1964). (Becker, 1964)

• Human capital should be treated as an asset, not an expense, because it generates future economic benefits.
• Expenditures on training and development should be capitalized and amortized over the expected service life of the employee.
• The return on investment (ROI) in human capital can be calculated by comparing the benefits (increased productivity) to the costs (training expenditure).

Human capital theory predicts a positive relationship between human capital investment (training expenditure, development expenditure) and profitability. This study tests this prediction (Becker, 1964). (Becker, 1964)

2.3.2 Resource-Based View (RBV)

The resource-based view (RBV), developed by Barney (1991), argues that firms achieve competitive advantage and superior performance by possessing resources that are valuable, rare, difficult to imitate, and organized to capture value (VRIO). Resources can be tangible (physical assets, capital) or intangible (reputation, knowledge, culture, human capital). Unlike tangible resources, intangible resources are often difficult for competitors to imitate, making them sources of sustainable competitive advantage (Barney, 1991). (Barney, 1991)

From an RBV perspective, human resources (employees’ skills, knowledge, experience, organizational culture) are valuable, rare (if competitors cannot easily hire similar talent), difficult to imitate (organizational culture is path-dependent), and organized (HR systems capture value). Therefore, human capital is a source of sustainable competitive advantage. Firms that invest in human capital (training, development) build valuable, rare, inimitable resources that lead to higher profitability (Barney, 1991). (Barney, 1991)

RBV predicts that firms with higher human capital investment will have higher profitability, and that HRA (which recognizes human capital as an asset) provides more accurate information about firm value. This study tests these predictions (Barney, 1991). (Barney, 1991)

2.3.3 Stakeholder Theory

Stakeholder theory, developed by Freeman (1984), argues that organizations have responsibilities not only to shareholders but to all parties who are affected by or can affect the achievement of organizational objectives. Stakeholders include employees, customers, suppliers, communities, creditors, and regulators. Effective management requires balancing the legitimate interests of multiple stakeholders, not maximizing shareholder value to the exclusion of others (Freeman, 1984). (Freeman, 1984)

From a stakeholder theory perspective, employees are key stakeholders whose interests (fair wages, safe working conditions, training, career development) must be balanced with shareholder interests (profitability). HRA, by recognizing employees as assets, signals that the organization values its employees as stakeholders. This can improve employee morale, loyalty, and productivity, leading to higher profitability (Freeman, 1984). (Freeman, 1984)

Stakeholder theory predicts that firms that invest in employee training and development (and report these investments transparently) will have higher employee satisfaction, lower turnover, higher productivity, and higher profitability. This study tests these predictions (Freeman, 1984). (Freeman, 1984)

2.3.4 Signaling Theory

Signaling theory, developed by Spence (1973), addresses information asymmetry between parties. In financial markets, managers have private information about firm value that investors do not have. Managers can signal private information to investors through observable actions. Human capital investment (training expenditure, employee development) can signal firm quality (Spence, 1973). (Spence, 1973)

Firms that invest heavily in employee training signal that they have long-term growth prospects and expect to retain employees (training investment is only worthwhile if employees stay). High training expenditure signals high firm quality. Investors interpret high training expenditure as a positive signal, leading to higher stock prices and lower cost of capital. HRA, by reporting human assets on the balance sheet, provides a visible signal of human capital value (Spence, 1973). (Spence, 1973)

Signaling theory predicts that firms with higher human capital investment (and HRA adoption) will have higher stock prices (market valuation) and lower cost of capital, leading to higher profitability. This study tests these predictions (Spence, 1973). (Spence, 1973)

2.4 Empirical Review

This section reviews empirical studies that have examined the relationship between Human Resource Accounting and profitability. The review is organized thematically: global studies, Nigerian studies, and studies on specific HRA models.

2.4.1 Global Studies

In a study of 300 US firms, Flamholtz (1999) examined the relationship between human capital investment and profitability. Using correlation analysis, he found a positive correlation between training expenditure per employee and ROA (r = 0.28, p < 0.01). He also estimated that if firms adopted HRA (capitalizing training costs), reported ROA would increase by 2-5 percentage points. (Flamholtz, 1999)

In a study of 500 European firms, Johanson (2018) examined the relationship between human capital metrics (training hours, turnover rate, employee satisfaction) and profitability. Using regression analysis, he found that training hours were positively correlated with ROA (β = 0.32, p < 0.01); turnover rate was negatively correlated with ROA (β = -0.25, p < 0.01); and employee satisfaction was positively correlated with ROA (β = 0.28, p < 0.01). (Johanson, 2018)

In a study of 200 Asian firms, Gupta and Sharma (2020) examined the impact of HRA adoption on reported profitability. Using a simulation model, they found that HRA adoption increased reported profits by 15-25% for human-capital-intensive firms (technology, consulting, banking) and by 5-10% for manufacturing firms. The effect was larger for firms with high training expenditure and low employee turnover. (Gupta and Sharma, 2020)

2.4.2 Nigerian Studies

Several Nigerian studies have examined HRA and profitability. Okoye, Okafor, and Nnamdi (2020) surveyed 50 Nigerian listed firms on HRA practices. They found that only 15% of firms disclosed human capital metrics (training hours, turnover rates) in their annual reports. None had adopted full HRA (capitalizing human resource costs). However, firms that disclosed human capital metrics had higher ROA (mean 12% vs. 8%, p < 0.05) than firms that did not. (Okoye et al., 2020)

Eze and Okafor (2021) examined the relationship between training expenditure and profitability in 20 Nigerian banks from 2015-2019. Using panel data regression, they found a positive relationship between training expenditure per employee and ROA (β = 0.35, p < 0.01). They also found that employee turnover was negatively correlated with ROA (β = -0.28, p < 0.01). The study recommended that banks increase training investment and adopt HRA. (Eze and Okafor, 2021)

Adeyemi and Ogundipe (2019) examined the relationship between employee productivity (revenue per employee) and profitability in 30 Nigerian manufacturing firms. Using regression analysis, they found a positive correlation between revenue per employee and ROA (r = 0.42, p < 0.01). Firms with higher employee productivity had significantly higher profitability. (Adeyemi and Ogundipe, 2019)

Ogunyemi and Adewale (2021) examined the impact of COVID-19 on human capital investment in 40 Nigerian firms. They found that 60% of firms reduced training expenditure during the pandemic (cost-cutting). However, firms that maintained or increased training investment had smaller profit declines (mean -10% vs. -25%, p < 0.05) than firms that cut training. The study concluded that human capital investment is a resilience factor during crises. (Ogunyemi and Adewale, 2021)

2.4.3 Studies on HRA Models

Several studies have compared HRA models. Flamholtz (1999) compared the historical cost model and the economic value model using data from a US manufacturing firm. He found that the historical cost model produced more conservative (lower) human asset values than the economic value model (mean 150,000 per employee). However, the historical cost model was more objective and verifiable. (Flamholtz, 1999)

Gupta and Sharma (2020) compared the historical cost model and the replacement cost model using data from Indian IT firms. They found that the replacement cost model produced 30-50% higher human asset values than the historical cost model. However, the replacement cost model was more subjective (estimates varied widely). They recommended the historical cost model for adoption due to its objectivity. (Gupta and Sharma, 2020)

In Nigeria, Okoye et al. (2020) simulated the impact of adopting the historical cost model for 20 listed firms. They found that HRA adoption would increase total assets by 5-15% and increase reported profits by 10-20%. The effect was larger for service firms (banking, telecommunications) than for manufacturing firms. (Okoye et al., 2020)

2.4.4 Studies on Challenges of HRA Adoption

Several studies have identified challenges to HRA adoption. Flamholtz (1999) identified the following challenges: (1) measurement difficulty (how to measure human asset value?); (2) subjectivity (different models produce different values); (3) lack of accounting standards (no IFRS or GAAP standard for HRA); (4) tax implications (capitalizing vs. expensing affects taxable income); (5) auditor acceptance (auditors may not accept HRA valuations); and (6) comparability (firms using different models would not be comparable). (Flamholtz, 1999)

In Nigeria, Okoye et al. (2020) surveyed 50 CFOs on barriers to HRA adoption. The most cited barriers were: (1) lack of accounting standards (80% of CFOs); (2) measurement difficulty (75%); (3) lack of awareness (70%); (4) cost of implementation (60%); (5) auditor acceptance (55%); and (6) tax implications (50%). (Okoye et al., 2020)

Eze and Okafor (2021) found that 70% of Nigerian CFOs supported HRA adoption in principle but were concerned about implementation challenges. They recommended that professional bodies (ICAN, ACCA) develop HRA guidelines and that the FRC of Nigeria consider an HRA standard. (Eze and Okafor, 2021)

2.5 Summary of Literature Gaps

The review of existing literature reveals several significant gaps that this study seeks to address.

Gap 1: Limited Nigerian-specific evidence on HRA and profitability. Most Nigerian studies are descriptive or use small samples. This study uses a larger sample and empirical methods.

Gap 2: Lack of simulation of HRA adoption on reported profitability. Most Nigerian studies discuss HRA conceptually but do not estimate the impact. This study simulates the impact of HRA adoption (historical cost model) on reported profitability.

Gap 3: Lack of comparison of HRA vs. traditional accounting. Most studies focus on human capital investment and profitability but do not compare accounting treatments. This study compares traditional accounting (expensing) vs. HRA (capitalizing).

Gap 4: Lack of COVID-19 analysis. The pandemic affected human capital investment and profitability. This study includes COVID-19 period data.

Gap 5: Lack of industry comparison (manufacturing vs. services). The relationship may differ by industry. This study compares manufacturing and service firms.

Gap 6: Lack of examination of employee turnover and productivity. Most studies focus on training expenditure only. This study includes employee turnover and productivity.

Gap 7: Lack of theoretical integration (human capital, RBV, stakeholder, signaling). Most Nigerian studies are descriptive. This study uses multiple theories.

Gap 8: Lack of practical recommendations for HRA adoption. Most studies identify barriers but do not propose solutions. This study proposes evidence-based recommendations.