This paper considers an application of the Markov switching vector error correction model to the analysis of the long-run and the short-run dependence of Russian real GDP and real exchange on oil prices. An algorithm for estimation of the model with a priori information on a state of hidden Markov chain in some periods of time is provided. It is shown that for the period of 1999-2018 two different regimes are well defined: with a slow adjustment of real exchange rate and a sharp reaction of GDP in response to oil price shock and with a fast adjustment of real exchange rate and a slow adjustment of GDP in response to shock. We have concluded that floating ruble exchange rate is a natural stabilizer of the Russian economic activity. |
