Mongardini, Joannes Ratchet effects in currency substitution: an application to the Kyrgyz Republic / Joannes Mongardini, Johannes Mueller - Washington : International Monetary Fund (IMF) , 1999 - 23p : ILL. ; 30 CM. - IMF Working Paper No. WP-99/102 . Includes bibliographical references. Subjects--Topical Terms: CurrenciesMonetary policy Gov. Doc. Class. No.: UN IMF WP-99-102