La paridad del poder de compra en el largo plazo: el caso de México

In this paper the absolute version of the purchasing power parity hypothesis is tested as a long-run equilibrium condition in the Mexican case, in particular the existence of convergence between the prices of Mexico and the prices of United States, valuated in the same currency is evaluated. The existence of unit roots in different measures of the real exchange rate and the cointegration of various kinds of internal and external prices valued in the same currency, are tested by using several methodologies. The results show weak evidence in favor of the purchasing power parity which could be a consequence of the action of structural and transitory economic factors.