A discussion, based on Treml's analysis, of Soviet difficulty in applying input-output techniques to economic planning, and of the wider factors that inhibit mathematical economic planning in the Soviet Union. The main difficulties lie in a dichotomy between local execution and central purpose and the search for elusive goals, reflected in such immediate problems as the controversy over the starting point of plan models, the confusions surrounding the national cybernetics program, and the debate over how much enterprise autonomy will be allowed in the future. The author also discusses the pervasive influence of party politics. 21 pp. Bibliog.