Öz
Extensive changes have been occurring in service delivery methods along with the basic approaches in public administration. The public-private partnership (PPP) model is increasingly widespread in realizing the investments needed in areas where public resources are insufficient or where private sector capacity offers significant advantages. The success of this model, which aims to provide public services in higher quantity, speed, quality and efficiency by benefiting from the comparative advantages of the public and private sectors and sharing the risks between both sectors, depends on the establishment of a rational cooperation ground between the two parties and the effective management of the process. The PPP model is based on the relational state phenomenon. The relational government approach, which expresses the use of private sector and civil society dynamics in the state coordination in the provision of public services, requires new and more complex regulations in terms of performance measurement, transparency and accountability. In the Turkish implementation of the PPP model, the performance level of the various versions of the model, the deficiencies in the application and the improvement suggestions developed by the Turkish Court of Accounts (TCA) form the framework of this study. This study demonstrated the effective role of the TCA in developing accountability and transparency, which are critical for the success of the model through the audit reports submitted to the Parliament and shared with the public. Our findings suggest that, in terms of the public sector, it should be a priority policy to develop the application in the light of the findings of the TCA and to take the necessary measures to combat fundamental risks. In terms of the TCA, it is recommended to review and improve its audit and guidance capacity in the successful implementation of this hybrid model, which is expected to become more widespread. In the light of the developments in the market economy and the service delivery approaches of the state, in the context of the implementation of Turkey, the development of a more appropriate model for PPP model goes beyond the limit of this study and remains for further research.