EN
The author presents in the article main problems connected with measuring the effects of import of modern technique making allowances for specific characteristics of developing economics. There are discussed basic methods of the economic calculus as applied in analysis of effectiveness on the transferred technical progress on macro- and microeconomlc scale. Some attention has been also devoted to social aspects generated by import of new technologies through presentation of basic assumptions of the technology assessment concept. Despite quite a vast range of socio-economic methods in measuring the technical progress effectiveness, application of particular measures should be analyzed separately for each Third World country since particular elements of the effectiveness calculus differ from one economy to another.