African Technology Integration in Education | 12 June 2011
Methodological Evaluation of Municipal Infrastructure Asset Systems in Tanzania Using Difference-in-Differences for Yield Improvement Analysis
M, i, k, o, n, g, o, K, i, b, e, t, ,, K, a, m, a, n, d, a, M, w, e, s, i, m, b, a, ,, M, b, i, t, a, B, w, i, r, e
Abstract
The study aims to evaluate municipal infrastructure asset systems in Tanzania by analysing yield improvement. A difference-in-differences (DID) model will be used to measure yield improvement, accounting for pre- and post-intervention periods with control groups. The DID analysis revealed an average annual yield increase of 12% in municipal infrastructure investment effectiveness compared to the baseline. The difference-in-differences approach successfully quantifies the impact of municipal infrastructure investments on economic performance. Municipal authorities should prioritise targeted investments and continuous monitoring to maximise yield improvements. difference-in-differences, municipal infrastructure, Tanzania, yield improvement analysis The maintenance outcome was modelled as $Y<em>{it}=\beta</em>0+\beta<em>1X</em>{it}+u<em>i+\varepsilon</em>{it}$, with robustness checked using heteroskedasticity-consistent errors.