Public private partnerships and efficiency : a short assessment

Over the last 35 years or so, governments around the world have enhanced the participation of private actors to deliver a wide variety of goods and services, traditionally delivered by the public sector. The development of public–private partnerships (PPPs) has been, and continues to be, one of the most popular contractual forms this increased private sector role has taken. Despite this long lasting interest, robust theoretical and empirical research on their efficiency has, however, only emerged relatively recently.