Whilst a lot has been said about how to fight corruption at tender stage in public procurement, post-tender corruption is an issue that remains almost unexplored. In this paper, we make a step towards filling this gap, by studying the relationship between the quality of a country's institutions,...

PPPs have been implemented broadly around the world in the infrastructure sector - water and sanitation, transports, energy and telecommunications - and, more recently, in the provision of public services -­ education, health, prisons, and water and waste management. Key aspects of the contract...

Building upon Iossa and Martimort (2008), we study the main incentive issues and the form of optimal contracts for Public Private Partnerships (PPPs) in transports. We present a basic model of procurement in a multitask environment in which a risk-averse firm chooses unobservable efforts in...

For two different regulatory standards, we examine the optimal minimum wage in a competitive labour market when the government is uncertain about supply and demand. Solutions are related to underlying supply and demand conditions, and the extent of uncertainty and of rationing efficiency. We...