Nonetheless, dollarization would be practically irreversible. Argentina would give up control over its money supply to the U.S. federal Reserve set policy to assist the U.S. economy, which had little in common with the Argentina economy. Even talking about dollarization would undermine confidence in the peso. Others noted that the alternative of allowing the peso to float freely like the real would be likely to erode confidence even more, resulting in a devaluation of the peso.