ownership of means of production and planned system of the national economy. Central !zed management of S&T development as wei I as of the national economy as a whole makes It possible to carry out their planned development, determine the long-ter• possibilities of S&T progress, and li~ economic and social consequences. PRINCIPLES OF SINGLE S&T POLICY The principles of single S&T pol Icy have been formulated by V.I. Lenin. Its essence consists In ensuring al 1-round acceleration of S&T progress by alI branches of the national economy, and by all organs of management. In his speech delivered In February 1984 Comrade K.U. Chernenko underl lned: "As far as the major directions of development of our economy are concerned they are clearly defined by the party. Intensification, accelerated Introduction of S&T achievements, real lzatlon of large complex programmes -alI this In the end should raise the productive forces of our society to a qualitatively new level". The realization of single S&T development of fundamental and appl led Introduction of S&T achievements, conditions for a continuous growth Presented by A.l. Chubarenko pol Icy means accelerated scientific research, wide creation of favourable of social production 0 I.Q co C'l efficiency, Its Intensification. The planning system Is a means of justification and real lzatJon of single S&T pol Icy ensuring the development of the country's economy and acceleration of S&T progress. That Is why the real lzatlon of single S&T pol Icy Is carrIed out through a system of state ,p fans. Here It Is necessary to single out two aspects: 1) planning of the development of R&D activities In order to create a scientific stock; 2) planning of S&T progress via. Indices of all the sections of the state plan of economic and social development of the country which .determine the Increase 
**Analysis**
The text appears to be discussing the principles and implementation of a planned economy, focusing on the role of science and technology in driving economic development. It highlights the importance of central management and planning in achieving accelerated scientific research and technological progress, which is then expected to lead to increased productivity and economic growth.

**Category**
Economic development, Science and technology