“Public Private Partnerships (PPPs) have emerged as one of the major approaches for delivering infrastructure projects in recent years. If properly formulated and managed, a PPP can provide a number of benefits to the public sector such as: alleviating the financial burden on the public sector due to rising infrastructure development costs; allowing risks to be transferred from the public to the private sector; and increasing the ‘value for money’ spent for infrastructure services by providing more efficient, lower cost, and reliable services. However, the experience of the public sector with PPPs has not always been positive. Many PPP projects are either held up or terminated due to: wide gaps between public and private sector expectations; lack of clear government objectives and commitment; complex decision making; poorly defined sector policies; inadequate legal/regulatory frameworks; poor risk management; low credibility of government policies; inadequate domestic capital markets; lack of mechanisms to attract long-term finance from private sources at affordable rates; poor transparency; and lack of competition. Despite numerous negative experiences, many governments (e.g., the UK and Australia) continue to view PPPs as one of the key strategies for delivering public services and infrastructure. Therefore, understanding and enhancing knowledge of PPPs continue to be a matter of significance and importance. During the past decades, researchers have conducted studies that cover a wide range of topics, such as how to select an appropriate concessionaire, what are the critical factors for the success or failure of PPP projects, what roles the government should play in PPP projects, and more.”