The decision of various problems of economic growth is connected with problems of an estimation of a production efficiency and contribution of production factors. Reliable results of these evaluations would allow us to see a true value cost of achievement of production results and develop a strategy of economic development. Thus, the same output increase can be achieved both at the expense of extensive growth of production factors and at the expense of their qualitative improvement. Dynamics of the data of economy of Russia, unfortunately, does not allow to receive reliable statistical dependences. Therefore we shall consider modeling of an industry of Khabarovsk territory of 1971 1985 and Korea economy of 1970 2001. The most spreading approach to model a technical progress is a model of dynamic Cobb Douglas production function with a constant average annual rate of growth of production because of technical progress: Y??=A·K????·L??????·e????. Though this, hypothesis is not always true for all economic objects. An incorrect choice of the hypothesis of the effects of technical progress on the production growth can lead to erroneous estimates (to negative function parameters). For a better analysis of a modern reality the author offered for consideration a new production function with varying effects of unconsidered factors on final results of production and developed a new method of evaluation of parameters of a function [l 5]. The calculations show that Q?? and λ·t values dynamics (Figures 12) does not coincide in the case for Khabarovsk Territory Industry (1971 1985) but it coincides for the economy of Korea 0970 2001) in the whole. For economy of Korea the meaning of parameter A is equal to 0.042. It means, that during 1970 2001 the value of average annual increase rate of GDP was 4.2% (Table 1). The production efficiency of Korea in 1970's, 1980's, 1990's increased by 20.73%, 47.98% and 53.58% respectively. In 2001 the production efficiency of Korea increased in 2.744 times relatively of 1970 (Table 2). The extensive contribution E?? into the Increase of output in 1970 1975, 1970 1980, 1970 1985, 1970 1990, 1970 1995, 1970 2001 were respectively (Table 3): 66.94%, 73.59%, 59.58%, 66.81 %, 63.60% and 43.03%. Therefore, the development of Korea in 1970 2001 was mainly extensive till financial crisis 1997 because during almost all period the aggregate contribution E?? of the extensive factors exceeded 50%. Only after crisis 1997 as a result of transformations in economy the contribution of the extensive factors sharply have decreased and was less than 50%.
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