He is considered one of the most prominent members of the Catalanist wing of the Socialists' Party of Catalonia.

[citation needed] He is a lecturer in Public Revenue at the UB.

He has been a visiting professor at the Johns Hopkins University of Baltimore (1993) and director of The Institute of Economy of Barcelona until, November 2003.

[citation needed] He has written many books about the topics which he is specialized: fiscal federalism, autonomous and local revenue, regional economy and the economy of the welfare state.

[citation needed] Currently Secretary of the Economy of the PSC Executive Committee.