Optimum currency area theory: evidence from post-Soviet countries and implications for Eurasian Economic Union

In this article the theory of optimum currency area is applied to post-Soviet and other selected countries. The study finds smaller exchange rate variability when the economies are closely linked by bilateral trade, are subject to similar shocks both on aggregate and at the industry level, have similar inflation rates, are open and smaller in economic size, and have higher labour migration as proxied by remittance flows. The estimation results also substantiate that the US dollar plays a dominant role as an anchor currency. Next, the study shows that economic fundamentals suggest limited prospects of a common currency for post-Soviet countries, particularly for the Eurasian Economic Union (EAEU). It is also found that Moldova, among the post-Soviet countries, better approximates an optimum currency area with Russia. Further, when the government debt-to-GDP ratio is taken into account, only Kazakhstan from the EAEU member countries stands out as having positive prospects for forming a common currency area with Russia.