A file containing documents relating to NATO economic work and Eastern European economies. Subjects covered in the file include the work programme of the NATO economic committee; and a NATO economic colloquium on the subject of energy supplies among the members of the Council for Mutual Economic Assistance in the period 1970–1990. The documents also discuss the importance of the private sector, or "second economy", in Hungary, East Germany, and Bulgaria; and a statistical comparison of the state and private sectors in Bulgarian agriculture.