The shift is an effort by retailers here to squeeze more spending from the big , but cash-short , bottom of the consumer base in Brazil , South America 's biggest economy .
South America /location/location/contains Brazil
DT NN VBZ DT NN IN NNS RB TO VB JJR NN IN DT JJ , CC JJ , NN IN DT NN NN IN NNP , NNP NNP POS JJS NN .
South America
LOCATION
Brazil
LOCATION
/location/location/contains