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10 July 2009 A study on operation efficiency evaluation based on firm's financial index and benchmark selection: take China Unicom as an example
Zu-guang Wu, Zhan-jun Tian, Hui Liu, Rui Huang, Guo-hua Zhu
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Proceedings Volume 7490, PIAGENG 2009: Intelligent Information, Control, and Communication Technology for Agricultural Engineering; 74900M (2009) https://doi.org/10.1117/12.836933
Event: International Conference on Photonics and Image in Agriculture Engineering (PIAGENG 2009), 2009, Zhangjiajie, China
Abstract
Being the only listed telecom operators of A share market, China Unicom has always been attracted many institutional investors under the concept of 3G recent years,which itself is a great technical progress expectation.Do the institutional investors or the concept of technical progress have signficant effect on the improving of firm's operating efficiency?Though reviewing the documentary about operating efficiency we find that schoolars study this problem useing the regress analyzing based on traditional production function and data envelopment analysis(DEA) and financial index anayzing and marginal function and capital labor ratio coefficient etc. All the methods mainly based on macrodata. This paper we use the micro-data of company to evaluate the operating efficiency.Using factor analyzing based on financial index and comparing the factor score of three years from 2005 to 2007, we find that China Unicom's operating efficiency is under the averge level of benchmark corporates and has't improved under the concept of 3G from 2005 to 2007.In other words,institutional investor or the conception of technical progress expectation have faint effect on the changes of China Unicom's operating efficiency. Selecting benchmark corporates as post to evaluate the operating efficiency is a characteristic of this method ,which is basicallly sipmly and direct.This method is suit for the operation efficiency evaluation of agriculture listed companies because agriculture listed also face technical progress and marketing concept such as tax-free etc.
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Zu-guang Wu, Zhan-jun Tian, Hui Liu, Rui Huang, and Guo-hua Zhu "A study on operation efficiency evaluation based on firm's financial index and benchmark selection: take China Unicom as an example", Proc. SPIE 7490, PIAGENG 2009: Intelligent Information, Control, and Communication Technology for Agricultural Engineering, 74900M (10 July 2009); https://doi.org/10.1117/12.836933
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KEYWORDS
Agriculture
Factor analysis
Composites
Analytical research
Computed tomography
Databases
Feature selection
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