19% on an annualized basis. Inflation in the United States during that same period was 2.3% annualized. a. What should have been the exchange rate in January 2003 if PPP held? b. By what percentage was the Argentine peso undervalued on an annualized basis? c. What were the probable causes of undervaluation? a. What should have been the exchange rate in January 2003 if PPP held? The exchange rate in January 2003, if PPP held, should have been Ps /S. (Round to five decimal places.)