| Summary: | 碩士 === 國立高雄第一科技大學 === 資訊管理所 === 98 === Information technology has become a key factor of organizations’ advantage edge that organizations seem the capabilities of IT support for various business activities as the final goal, not the performance of information technology. Thus, organizations expect to enhance the efficiency and effective of inter-organizational business process by using innovation information technology, for example, electronic supply chain systems (ESCMS). By the way, when ESCMS enhance the efficiency and effective of inter-organizational communication, these systems improve inefficient business procurement processes to make organizations become difference which means that they can focus on procurement products rather than procurement processes. However, although ESCMS have various advantages for organizations, prior research arguments show that organizations decrease their motivation to use inter-organizational systems which are involving high transaction costs with suppliers. On the other hand, due to environmental or performance uncertainties make organizations impossible to write contracts that cover all future contingencies, they must coordinate with each other to face these unexceptional situations and it causes that they seem interaction between organization and partner as important factor. To address this, this study aims to deepen understanding of above two ressons with the buyer motives for adopting ESCMS. Extending prior work, an integrated model was proposed by examining ESCMS participation level from the perspectives of both transaction costs and incomplete contracts. Hence, we combines three factors from transaction costs economics, in terms of opportunism, bounded rationality, frequency and uncertainty of demand, and two factors from incomplete contracts theory, non-contractibility. Specially, this study seems non-contractibility as second-order factor, including responsiveness and trust, to help us examine the moderating effect of the relationships between the perspectives of transaction costs theory, in terms of opportunism, bounded rationality, frequency uncertainty of demand, and three different levels of organizations’ ESCMS participation.Our results show that the direct relationships of opportunism and frequency uncertainty of demand and buyer participation level have significant negatively effects. In addition, the relationship of non-contractibility and buyer participation level has significant positively effect. Specially, non-contractibility has moderating effects on the relationships of buyer participation level with terms of opportunism, bounded rationality, frequency uncertainty of demand.
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