His main areas of expertise include PPPs, concessions, contract design and investment appraisal, in the infrastructure sector. He has worked as a consultant for several public and private entities, in Portugal and abroad, in projects related to PPPs, concessions and regulation. Between 2005 and 2007, he served as an Advisor to the Portuguese Secretary of State for Transportation where he was involved in the design, implementation and monitoring of several transportation projects. Carlos also worked as a Consultant and Member of the Board at private consultancy firms between 2007 and 2010. In 2011, he was a Visiting Scholar at the Kennedy School of Government (Harvard University), where he focused his research on contract renegotiation. Contacts Email: oliveira.cruz@tecnico.ulisboa.pt