LEAN ACCOUNTING PRACTICES AND PERFORMANCE OF MANUFACTURING FIRMS IN RIVERS STATE, NIGERIA

JONAH Ngbomowa Moses PhD , JACK Obiazi Tubotamuno-Ojas Ph.D — Mon, 16 Feb 2026 00:00:00 +0000

This study investigated the effect of lean accounting practices on the performance of manufacturing firms in Rivers State, Nigeria, focusing on two dimensions of lean accounting: Value Stream Costing (VSC) and Kaizen Costing (KC). Firm performance was measured using two financial indicators: profitability and cost efficiency. A descriptive survey research design was adopted, and data were collected from 110 finance and operations managers of selected manufacturing firms using structured questionnaires. Descriptive statistics, multiple regression analysis, and ANOVA were used to analyse the data. The findings revealed that Value Stream Costing significantly improves both profitability (β = 0.42, p < 0.001) and cost efficiency (β = 0.38, p = 0.001), while Kaizen Costing also significantly enhances profitability (β = 0.35, p = 0.001) and cost efficiency (β = 0.41, p < 0.001). The regression models explained 52% of the variance in profitability and 49% of the variance in cost efficiency, and both models were statistically significant (p < 0.001). These results indicate that lean accounting practices positively influence the financial and operational performance of manufacturing firms. The study concludes that adoption of lean accounting practices is critical for enhancing profitability and operational efficiency. It recommends that manufacturing firms institutionalize lean accounting, align accounting systems with lean production processes, and cultivate a culture of continuous improvement through Kaizen initiatives.

COST ACCOUNTING INFORMATION AND PROFIT PLANNING IN NIGERIAN OIL AND GAS FIRMS

COURT Eunice Ralph PhD , JONAH Ngbomowa Moses PhD, JONAH Ngbomowa Moses PhD — Mon, 16 Feb 2026 00:00:00 +0000

This study examines the effect of cost accounting information on profit planning in Nigerian oil and gas firms. Profit planning, encompassing budgetary profit forecasting and performance evaluation and profit optimization, is critical for organizational sustainability in the highly capital-intensive and volatile oil and gas sector. The study specifically investigates how the dimensions of cost accounting information cost control information and cost allocation and analysis information influence profit planning outcomes. A descriptive and explanatory research design was adopted, targeting managerial and accounting staff across 50 registered oil and gas firms in Nigeria. Data were collected through structured questionnaires and analyzed using descriptive statistics and multiple regression analysis. The findings reveal that both cost control and cost allocation information have a positive and significant effect on budgetary profit forecasting and performance evaluation. The regression results indicate that cost accounting information explains a substantial proportion of the variance in profit planning, with cost control information exhibiting a slightly stronger influence. The study concludes that effective profit planning in Nigerian oil and gas firms is heavily dependent on the availability, accuracy, and utilization of cost accounting information. It is recommended that firms strengthen their cost accounting systems, enhance managerial capacity, adopt modern technology, and integrate cost data into strategic decision-making processes. This will enable firms to improve financial performance, optimize resource utilization, and sustain profitability in a highly competitive industry.

Academic Journal of Accounting and Business Management

LEAN ACCOUNTING PRACTICES AND PERFORMANCE OF MANUFACTURING FIRMS IN RIVERS STATE, NIGERIA

COST ACCOUNTING INFORMATION AND PROFIT PLANNING IN NIGERIAN OIL AND GAS FIRMS