The Value Relevance of Information Technology Efficiency Coefficient.

Autor: Tsae-wei Huang, 黃采薇
Rok vydání: 2009
Druh dokumentu: 學位論文 ; thesis
Popis: 97
Given the importance of information technology (IT), companies and investors need information about its efficiency. The principal purpose of this study is to investigate the value relevance of IT efficiency coefficient (ITE), where ITE is concluded of IT infrastructure coefficient (ITSCE) and IT human coefficient (ITHCE). This research applies a broad, analytical perspective for extending Pulic’s (2000) Value Added Intellectual Coefficient (VAICTM) method that measuring the “value creation efficiency” of a company. In VAICTM model, the definition of structural capital (SC) is too simple to capture the SC efficiency’s effect. We extend VAICTM model, so SC is composed of IT and non IT capital, and SC efficiency (SCE) is calculated as follows: SCE=ITE+nonITE, where nonITE is SCE minus ITE. With Ohlson (1995) model, findings from the empirical analysis indicate that the relationship of price and ITE coefficient is not significant. ITE is not value-relevance. We then compare the extended VAICTM to original VAICTM by Vuong Z (1989) test. We get no conclusions about the Vuong Z tests. There is no statistical evidence to prove the extended VAICTM whether is a better method or not. However, we just investigate the relationship between price and VAICTM coefficients and information technology efficiency. The results indicate that ITSCE and SCE coefficients have statistically significant and robust effect on the dependent variable, and therefore that the ITSCE coefficient is indeed value relevant.
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