Public-private partnerships is a concept and field of academic inquiry focused on collaborative arrangements between public sector entities and private organizations. These are typically long-term contractual agreements for the financing, construction, operation, or maintenance of public infrastructure or services. Research in this area investigates the motivations, structures, governance, performance, risk allocation, and socio-economic outcomes of such collaborations, highlighting their significance as alternative models for service delivery, leveraging private sector capabilities, and addressing public resource limitations.