การยอมรับและการใช้เทคโนโลยีบล็อกเชนในระบบจัดซื้อจัดจ้างภาครัฐด้วยอิเล็กทรอนิกส์: กรณีศึกษาสำนักงานคณะกรรมการกิจการกระจายเสียง กิจการโทรทัศน์ และกิจการโทรคมนาคมแห่งชาติ

Jantakarn Supich; Thoedsak Chomtohsuwan

Authors

Jantakarn Supich Faculty of Economics, Rangsit University
Thoedsak Chomtohsuwan Faculty of Economics, Rangsit University

Keywords:

Blockchain, e-GP, NBTC, Public Procurement, Technology Acceptance

Abstract

This study aims (1) to examine the level of acceptance and usage behavior of blockchain technology (2) to analyze the effects of factors based on the Unified Theory of Acceptance and Use of Technology (UTAUT) on the acceptance and use of blockchain technology, and (3) to develop and test a causal relationship model of factors influencing the acceptance of blockchain technology, including both direct and indirect effect using Structural Equation Modeling (SEM) in the Phase 5 e-Government Procurement (e-GP) system of the National Broadcasting and Telecommunications Commission (NBTC). The population of this study consisted of committee members involved in electronic public procurement of the NBTC, including members of bid evaluation committees, procurement committees, acceptance committees, and officers responsible for procurement and inventory management, totaling 665 persons. The sample size of 250 respondents was determined based on the Rule of Thumb for Structural Equation Modeling (SEM). A questionnaire was used as the data collection instrument. The data were analyzed using descriptive statistics, Cronbach’s Alpha, Confirmatory Factor Analysis (CFA), and Structural Equation Modeling (SEM). The results showed that users had a high level of acceptance of blockchain technology in the e-GP system. Effort Expectancy had the strongest effect on blockchain acceptance (β = 0.699, R² = 0.4885), followed by Facilitating Conditions ( β = 0.693, R² = 0.4797) and Attitude toward using technology ( β = 0.685, R² = 0.4687). Performance Expectancy, Social Influence, and User Confidence had relatively lower effects. Finally, the SEM model explained 81.30 percent of the variance in blockchain acceptance.

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