Abstract
By means of establishing the input-output indicator system of technical innovation of listed companies in food industry, in this study authors apply the DEA model to assess the technical innovation efficiencies of 26 listed companies in China food industry from 2012 to 2014. Results show generally lower technical innovation efficiencies in listed companies in food industry. The average of overall efficiencies is only 0.707, where there is a greater space for growth. Among the 26 listed companies, only five have reached the relatively higher technical innovation efficiency, accounting for a percentage of 19.2%. In addition, the technical innovation efficiencies significantly differ from each other among listed companies in various food industries. For dairy companies and large food companies, the technical innovation efficiency is relatively higher. Results also indicate that scale efficiency is the main factor affecting the overall technical innovation efficiency of food companies. A majority of food companies are at the stage of increasing returns to scale, where they are confronted with the problem of insufficient investment in technical innovation.
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