"The World Bank produces an annual index of political corruption around the world, based on surveys of people who do business in each country. In a study published in 2003 in The Journal of Law, Economics, and Organization, Alicia Adsera, Carles Boix, and Mark Payne examine the relationship between corruption and "free circulation of daily newspapers per person" (a measure of both news circulation and freedom of the press). Controlling for economic development, type of legal system, and other factors, they find a very strong association: the lower the free circulation of newspapers in a country, the higher it stands on the corruption index."
[Paul Starr, The New Republic de 4 de Março, aqui]
