Abstract: Incomplete technical information consists of three parts: autoregressive disturbance term, endogenous factors and exogenous factors. Under the two different elemental allocation methods of simultaneous selection and one after another selection of R&D funding and R&D personnel input, this paper conducts a comparative study of differentiated impact effect of incomplete technical information on technological innovation efficiency and output levels. Based on the measurement results of the date of 695 listed companies in three industries, this kind of impact effect is analyzed in detail and verified. The research results show that the incomplete technical information of the simultaneous selection method is not fully absorbed, the factor substitution coefficient is low, and the technological innovation efficiency and output level bear a significant impact. While there is larger factor allocation space with the one after another selection method, the factor substitution and incomplete technical information have strong adaptability, the configuration ratio is gradually optimized, and the impact effect is gentle. The correlation between incomplete technical information and its error and R&D fund input and output reflects the degree of error variation.

Key words: incomplete technical information; impact effect; technological innovation efficiency; factor allocation