Evaluation of process-control systems improves yield in food processing units, indicating efficiency gains are possible.
Recent studies in Ghana have highlighted variations in yield across different processing units, suggesting a need for systematic methodological improvements to enhance efficiency. A multilevel regression analysis was employed, incorporating data from multiple levels including individual units within larger facilities. The model accounts for both fixed effects (common factors affecting all units) and random effects (unit-specific variations). The multilevel regression revealed that the implementation of a centralized monitoring system significantly improved yields by an average of 15% across different stages of processing, with notable variance explained by unit-specific operational conditions. This study provided empirical evidence supporting the efficacy of standardised process-control systems in enhancing yield consistency and productivity in Ghanaian food processing environments. Based on the findings, it is recommended that all new or upgraded processing units adopt a centralized monitoring system to optimise yields and improve efficiency. Ghana, Process-Control Systems, Yield Improvement, Multilevel Regression Analysis The maintenance outcome was modelled as Yᵢₜ=β₀+β₁Xᵢₜ+uᵢ+εᵢₜ, with robustness checked using heteroskedasticity-consistent errors.
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Adzido et al. (2004) studied this question.
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