The plan causes increased spending in the U.S.

(Rajeeve Thakur, J.D., Washington and Lee University School of Law, May 2010; B.A., University of Toronto, honors., “Totalization with Mexico: A Path to Immigration Reform,” pg online @ https://scholarlycommons.law.wlu.edu/cgi/viewcontent.cgi?article=1311&context=crsj //pa-ef)

On a positive note, over a five-year time span, a totalization agreement with Mexico would save U.S. workers and employers approximately $ 140 million in contributions to Mexico. 172 Additionally, external economic benefits, such as increased propensity to spend, would likely result because of lower taxes for U.S. workers and employers. U.S. workers in Mexico would have a higher disposable income, as they would only be paying social security taxes to one country at a time. 173 This may encourage them to increase their spending in the United States. A similar argument could be made for authorized Mexican workers within the United States who, because of a U.S.-Mexico SSTA, would only be paying social security taxes in one country. Presumably, their disposable income would also increase, which could cause them to increase their spending while in the United States.