In the historical region of Mexico, the currency used is the peso. Its history dates back to the 1920s when it underwent reforms after the Mexican Revolution. The peso is recognized as the country's official currency and has a significant impact on the regional economy and trade. The peso, the country's currency, has wide-ranging effects on the economy. These effects include effects on the exchange rate, foreign trade, and domestic macro value. In general, the national currency affects the rate of inflation, the price level, and the financial and economic policies of the government.