Benchmarking PPP Procurement was initiated in 2015 with the preliminary goal of supporting a better policy-making process by highlighting key aspects of an economy’s regulatory framework for procuring PPPs. The exercise was inspired by the methodology of the World Bank Group’s Doing Business report, which assesses the business climate in 190 economies and has a track record of leveraging more than 3,000 reforms to date. Procuring Infrastructure PPPs 2018 is a continuation of Benchmarking PPP Procurement 2017, scaling up from 82 to 135 economies. It expands upon the 2017 edition by meticulously evaluating the laws and regulations of 135 economies against globally recognized good practices, to offer data to help governments assess the performance of their procurement systems for PPPs, deliver a unique information tool for the private sector and civil society, and fuel academic research in an emerging field. More importantly, the Procuring Infrastructure PPPs 2018 exercise aims to help governments and others identify areas for reform to achieve more transparent, competitive, and efficient PPP procurement systems and, where appropriate, increase private sector participation in infrastructure and service delivery.