"This paper develops a new and easily implementable necessary and sufficient condition for the exact identification of a Markov-switching structural vector autoregression (SVAR) model. The theorem applies to models with both linear and some nonlinear restrictions on the structural parameters. We...

Motivated by the dollarization debate in Mexico, we estimate an identified vector autoregression for the Mexican economy using monthly data from 1976 to 1997, taking into account the changes in the monetary policy regime which occurred during this period. We find that 1) exogenous shocks to...