The effects of WebTrust assurance on consumers' web purchase decisions

Abstract

Purpose The purpose of this paper is to examine the effects of WebTrust assurance, issued by Certified Public Accountant (CPA) firms, on web purchase behaviour and to examine such effects provided by different‐sized CPA firms. Design/methodology/approach In an experiment, several scenarios were manipulated to simulate a number of web purchase environments in which participants make decisions online. Findings The results indicate that the WebTrust assurance seal has a significant effect on consumers' web purchase willingness. An “ordering effect” was also found, in that, removing the seal has more impact than obtaining the seal, and an assurance seal issued by big firms has greater impact than one issued by smaller firms. Originality/value This study contributes to the existing literature by focusing on an important yet rarely addressed issue of brand assurance services. The paper helps to understand this phenomenon in a global sense. Compared to the student participants used in the previous literature, this experiment provides a practical addition to the prevalent framework of trust in e‐commerce studies. Finally the research went a further step to test whether the web assurance provided by different‐sized auditors affects web consumers' purchase decisions.

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