Sir Christopher specialises in the economics of labour markets, monetary and fiscal policy, economic growth and structural change. He was awarded the 2010 Nobel Prize in Economics, jointly with Dale Mortensen of Northwestern University and Peter Diamond of MIT, for his work on markets with frictions. The emphasis of his work has been the labour market and the theory and policy related to unemployment. Prior to that, in 2005, he became the first European economist to win the IZA Prize in Labor Economics, sharing it again with his collaborator Dale Mortensen. He has written extensively in professional journals, magazines and the press and his book Equilibrium Unemployment Theory is an influential reference in the economics of unemployment that has been translated into many languages.
He is an elected Fellow of the British Academy, the Academy of Athens, the Academia Europaea and several other learned societies, and he is a Lifetime Honorary Member of the American Economic Association. He has been honoured by several universities worldwide with doctorates or professorships. His other honours include the Grand Cross of the Republic of Cyprus (2011), the Trinity College Historical Society Gold Medal for Outstanding Contribution to Public Discourse (2012) and the Kiel Institute Global Economy Prize (2015). In 2011 he was elected honorary citizen of his birthplace Nicosia. He was knighted by Queen Elizabeth II in 2013.
In 2011 he served as the President of the European Economic Association. Between 2000 and 2007 he was the external member of the Monetary Policy Committee of the Central Bank of Cyprus, which brought the euro to Cyprus. In the past he worked on consultancy projects for the European Commission, World Bank and OECD on matters related to employment and macroeconomic policy. More recently he has worked on the economics of the euro area and the European Union and he is frequently quoted in the press on issues concerning European labour markets, the problems of the euro area and Greece in particular and the future of European integration.