A machine for credit cards is seen next to groceries on a stall at Feira Livre market on the streets of Pinheiros neighbourhood in Sao Paulo January 6, 2015. Brazil's annual inflation rate probably cooled off slightly in December despite another sharp increase in food prices. Inflation is expected to pick up again in early 2015, prompting the central bank to keep raising interest rates, according to market forecast. REUTERS/Nacho Doce (BRAZIL - Tags: BUSINESS POLITICS FOOD)