Efficiency Evaluation Of Chinese Listed It Company Based On Network DEA Analysis

IT enterprise is the very important component of the IT industry in China. Asthe intense international environment which brought by accession to the WTO, ITenterprise is facing serious challenges, so efficiency evaluation for the ITenterprise’s production process is becoming more and more important. Currently,researches that use DEA to evaluate Chinese IT enterprise’s efficiency are generallybased on the black box process, that is, treating the IT enterprise’s production as awhole process to evaluate the efficiency, without giving the root cause of the invalid.Therefore, how to analyse the efficiency of Chinese listed IT enterprises’objectively and accurately, and recognize the sources of the invalid enterprisesbetter, has a significant research value.In this paper, we first make a contrastive introduction of evaluationmethodology for the business performance, then choose DEA as this paper’sresearch method, and summarize all of the network DEA model at present. Secondly,according to the principle of DEA sample selection, select Chinese28IT enterprisesthat listed on Nasdaq. Thirdly, according to the actual situation, divide theproduction process into two stages, which are internal operating stage andmarketable financing stage, then give the corresponding evaluation indicator system.Finally, determine the two-stage network DEA model and evaluate the efficiency ofthe sample enterprise during2008-2011years.This paper evaluates the technical efficiency of the whole production processand the two stages, and decomposes it into the BCC efficiency and scale efficiency;calculate the relative efficiency of the risk level of return on investment from theinvestor’s perspective, then establish the regression relationship between riskefficiency and pure technology efficiency. The results show that: the main reasonfor inefficiency comes from the marketable financing stage, and the low efficiencyof this stage leads to the inefficiency of the whole process, by decomposing thetechnology efficiency into BCC efficiency and scale efficiency we found that theBCCefficiency is lower than the scale efficiency; there is a linear relationshipbetween the risk efficiency and the BCCefficiency of the two stages, and moreaccurately, the extent of their impact is similar while the operating stage’s isrelatively larger.