Italy's most expensive wines including Chianti, Barolo and Prosecco are grown and prepared via exploitation of farm workers, a significant number of whom are undocumented migrants dependent from sub-saharan Africa and South Asian countries. Journalist and academic Ottavia Spaggiari uncovered the degree of abuse migrant laborers are subjected to in Langhe and parts of Tuscany. Gross human rights violation in the business practices of the wine industry have had no impact on the big business which is a profit making industry for the country.