Publication Details
Abstract
This article develops an integral methodology - the PPP Investment-Institutional Efficiency Index (PPP–IIE) - for comprehensively assessing the efficiency of public–private partnership (PPP) mechanisms across Uzbekistan's regions on the basis of official statistical data, without relying on expert judgement. Drawing on a registry of 1,128 PPP projects and official investment statistics for 14 regions, the methodology operationalises two dimensions - investment-financial (INV-F) and institutional-governance (INS-G) - through six indicators, assigns objective weights via Shannon entropy, and combines the two blocks through non-compensatory weighted geometric aggregation, independently cross-validated with TOPSIS. Applying the index to Uzbekistan's 14 regions reveals substantial interregional differentiation, from 0.440 in Samarkand to 0.186 in Khorezm, and shows that high investment concentration does not guarantee overall efficiency where institutional execution - reflected in contract-termination rates - is weak. A sensitivity analysis (±20% weight variation, Spearman ρ > 0.9) confirms the robustness of the regional groupings. The PPP–IIE index offers a practical tool for prioritising PPP projects by region and targeting investment and institutional-strengthening measures.