Analysis on Productivity and Returns to Scale of China s Service Industry;

Based on quality ladder model,together with the introduction of SZ model,this paper discusses the R&D efforts of enterprise and relevant goverment R&D policy under the assumption of diminishing returns to scale of firm s R&D,thus puts forward that we can realize the optimal distribution of R&D resources through providing leading firms with subsidies,while imposing taxes on later comers.

The new production function has follow properties:the production function has constant returns to scale;the marginal rate of technical substitution and the elasticity of substitution are only related to the ratio of the two elements;the production function satisfies the Euler Theorem.

Base on comparatively analysis status quo of industrialization of high-new technology s development in Jiangsu,trans-log production function is build to lucubrate elasticity of productivity of the input factor and scale reward.

This paper mainly studies the sensitivity of ordianl relations among multipliers and input-output in scale-reward s DEA model, giving a mathematical proof.

The Growth Model with Increasing Return to Scale;

The theory of increasing return to scale can explain lots of new phenomena which can not be interpreted by conventional trade theory.

Increasing Returns to Scale, the Framework of Endogenous Growth and the "New" Development of the Trade Theory;

Non-radial centralized resource allocation DEA models under constant returns to scale have been studied in this paper.