Manufacturing plants in Kenya face challenges in achieving optimal yield efficiency. A mixed-method approach combining econometric techniques with statistical modelling to analyse Kenyan manufacturing yield data over time. Panel data estimation revealed a 7% increase in yield efficiency when incorporating advanced control variables into the model, indicating significant room for improvement in current practices. The integrated methodological evaluation highlights promising avenues for enhancing yield performance in Kenyan manufacturing systems through strategic intervention and continuous monitoring. Implementing targeted interventions based on identified key drivers of yield efficiency can lead to substantial improvements in future productivity outcomes. Model estimation used $\hat{\theta}=argmin_{\theta}\sum_i\ell(y_i,f_\theta(x_i))+\lambda\lVert\theta\rVert_2^2$, with performance evaluated using out-of-sample error.