Bank : Mexicans in U.S. sent 10 percent less money back to Mexico than last August . Some analysts estimate the drop will increase by year 's end to 20 percent . Rosina Gonzalez , who ran a Western Union office in Atlanta several years ago and recently returned to the job , said she has noticed a big change . After oil exports , remittances are Mexico 's second - largest source of foreign currency . Some migrant workers are opting to return to Mexico .
Bank : Mexicans in U.S. sent 10 percent less money back to Mexico than last August . Some analysts estimate the drop will increase by year 's end to 20 percent . After oil exports , remittances are Mexico 's second - largest source of foreign currency . Some migrant workers are opting to return to Mexico .