Sala i Martin is one of the leading economists in the field of economic growth and is consistently ranked among the most-cited economists in the world for works produced in the 1990s. His works include the topics of economic growth, development in Africa, monetary economics, social security, health and economics, convergence, and classical liberal thinking, with his book Liberal economics for non-economists. The "liberal" in the title should be understood in the classic liberal/libertarian sense. He has constructed an estimate of the world distribution of income, which he has then used to estimate poverty rates and measures of inequality. The conclusions of this study offered a new point of view for two reasons. Firstly, the United Nations and the World Bank used to believe that although poverty rates were falling, the total number of poor people was increasing. He claimed that both were falling. Secondly, the United Nations and the World Bank believe that individual income inequalities were on the rise. He claimed that they were not. Sala i Martin is the author of the economic growth textbook and the co-author of the textbook . Sala i Martin is, along with Elsa V. Artadi, the author of the , used since 2004 by the Global Competitiveness Report published by the World Economic Forum, an index that ranks 142 countries by their level of economic competitiveness. He often collaborates with Catalan media to support the independence of Catalonia from Spain. In 2014 he had a public confrontation with Jose ManuelDurão Barroso, the president of the European Commission, reproaching him the lack of support towards a democratic resolution of the conflict between Spain and Catalonia.
Other activities
He was a board member at FC Barcelona and treasurer of the club between 2004 and 2010. He was the president of the club during the electoral process of 2006. He is the founder of , a nonprofit organization that promotes economic development in Africa. He is a columnist for the Spanish newspaper La Vanguardia. He makes weekly appearances in the Catalan radio networkRAC 1 and in the television show of TV3. He also contributes to CNN. He supports Catalan independence and gives conferences around Catalonia, in name of the pro-independence association that he and other university teachers created for that purpose.
Prizes
He has been recognized with a Distinguished Teacher in Graduate Economics award three times at Columbia and Yale, with the 2004 King Juan Carlos I Prize, and the 2006 Lenfest Prize awarded to the best teacher at Columbia University. On 15 January 2017, Martin was listed by UK-based company Richtopia at number 14 in the list of 100 Most Influential Economists.
