In 1921 Mongolia nationalized postal and telecommunications services--then Russian-owned, Chinese-owned, and Danish-owned-- and placed them under the Postal and Telegraph Department of the Ministry of Foreign Affairs. With Soviet assistance, Mongolia extended telephone and telegraph lines between 1923ออออ and 1930, inaugurated motorized intercity mail delivery in 1925, and began radiobroadcasting in 1934 and television broadcasting in 1967. Since the 1920s, Soviet aid--including technical assistance, investment, and training--enabled Mongolia to create national postal and telecommunications networks as well as to establish international communications links. In the 1980s, the Ministry of Communications, which ran the postal and the telecommunications systems, emphasized expanding and upgrading the telecommunications services and facilities to create a unified communications system. This system included telephone, telegraph, telex, radio, and television it still relied on cooperation and assistance from the Soviet Union and other Comecon countries.

In 1985 Mongolia's telephone, telegraph, and telex system included 420 postal, telephone, and telegraph offices 28,000 kilometers of telephone and telegraph lines and 49,300 telephones. The Ministry of Communications was working to introduce a unified digital data-transmission system, to upgrade the telephone system to an automatic-switching network, to increase the length of multiplex telephone channels, and to establish a land-based mobile telephone network using earth satellite facilities. Radio-relay lines provided intercity and international, direct-dialing telephone links. Telex lines connected Ulaanbaatar with Irkutsk and Moscow.

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English-language sources on the Mongolian economy are few a substantial literature exists in Russian, but little in that language, or in Mongol, has been translated into English. In English the best source on Mongolian economic affairs published since 1970 is chapter 4, "The Economic System," in Mongolia: Politics, Economics, and Society by Alan J.K. Sanders. Articles by Sanders in the Far Eastern Economic Review [Hong Kong], in scholarly journals, and in other reference publications often deal with economic topics. Judith Nordby's "The Mongolian People's Republic in the 1980s: Continuity and Change" treats economic policies and problems. Michael Kaser's "The Industrial Revolution in Mongolia" deals with Mongolian industrialization, as does Alois Holub's "Mongolia: Modernizing the Industrial Structure." "Manpower Policy and Planning in the Mongolian People's Republic," by M. Lkhamsuren, examines labor resources. William E. Butler's The Mongolian Legal System: Contemporary Legislation and Documentation includes Mongolian legal documents and commentary touching upon economics. Asian Survey and the Far Eastern Economic Review's Asia Yearbook contain annual surveys of developments in Mongolia, including economic developments. Other sources for Mongolian economic affairs are the Foreign Broad 272cast Infnformation Service Daily Report: East Asia the Joint Publications Research Service Mongolia Report, Mongolia [Ulaanbaatar] and the Russian-English-French edition of National Economy of the MPR for 65 years, 1921-1986. (For further information and complete citations, see Bibliography).

Data as of June 1989