Identification and Evaluation of the Sources of Economic Efficiency in Improving the Management Structure of the Regional Construction Complex

The improvement of management structures in regional construction complexes is an important factor in increasing economic efficiency, strengthening organizational coordination and ensuring the sustainable development of the construction industry. Traditional object-oriented management, in which individual construction projects are the primary objects of control, often generates excessive administrative procedures, weak coordination between public and private participants and avoidable operating costs. The purpose of this study is to identify and quantitatively evaluate the main sources of economic efficiency that arise from improving the management structure of a regional construction complex. The research is based on a systems approach, an economic evaluation approach applied at the regional, enterprise and project levels, and a calculation model consisting of three formulas that estimate the effects of integrating the informal construction sector, reducing unnecessary construction expenses and reducing construction defects. The results show that the transition to an organization-oriented management model, the development of coordination and digitalization functions, the integration of small businesses and informal sector participants, and the introduction of unified technical standards are the principal sources of efficiency. The integrated economic effect is estimated at 548.3 billion Uzbek soums, of which 236.5 billion soums (43.1%) is associated with the integration of the informal sector, 144.1 billion soums (26.3%) with the reduction of unnecessary expenses and 167.7 billion soums (30.6%) with the reduction of defects; this corresponds to approximately 2.9% of the annual construction output of the region. A sensitivity analysis indicates a range of 434.8–661.8 billion soums under alternative assumptions. The findings can be used by regional authorities and construction organizations when designing and evaluating management reforms.