ACKNOWLEDGMENTS: The authors would like to thank Vivek Choudhury, Huigang Liang, Alexander Lopez, Nigel Melville, Waleed Muhanna, and Sandra Robinson for their valuable feedback on this manuscript. The paper has benefited from presentations at Ohio State University and the University of Cincinnati. Both authors have equally contributed to this manuscript. Psychological Contract Violation in Online Marketplaces: Antecedents, Consequences, and Moderating Role This study examines the nature and role of psychological contract violation (PCV) in online marketplaces, a critical factor that has been largely overlooked by previous research. Applied to buyer-seller relationships, PCV is defined as a buyer’s perception of having being treated wrongly regarding the terms of an exchange agreement with an individual seller. PCV with individual sellers is proposed as a formative first-order construct driven by the occurrence of fraud, product misrepresentation, contract default, delivery delay, and failure to follow product guarantees and payment policies. PCV with an individual seller is proposed to prompt a generalized perception of PCV with the entire community of sellers in a marketplace. PCV with the community of sellers is hypothesized to negatively affect buyer transaction behavior in a marketplace by directly impacting transaction intentions, price premiums, trust, perceived risk, and the

The purpose of this investigation is to identify factors in the decision making processes used by online auction sellers to select their online auction sales channel. Examining these decision factors will aid in creating a model of online auction seller channel evaluation mechanisms including economic and social factors and may be used by online auction services and intermediaries to maximize their market potential by increasing the perceived value of the various economic or social factors influencing seller outlet selection. An exploratory survey analysis is used to identify the components that online seller’s use for online channel selection.

Abstract: Since the advent of the Internet, B2C e-Commerce has grown substantially across the globe. Whilst much research has examined factors influencing adoption of e-commerce, not as many studies have investigated the post-adoption phenomenon of success. Those studies that have investigated IS success and the extensions required to accommodate e-commerce have mainly been conceptual. Few have attempted to test and validate the models empirically. The purpose of this study was to fill this gap. By drawing from the technology acceptance model, expectation-confirmation theory and IS success theory, a revised conceptual model was derived. The model and relationships were tested and validated using data gathered from 166 online consumers in South Africa. 7 interrelated dimensions of B2C e-commerce success were confirmed, namely service quality, system quality, information quality, trust, perceived usefulness, user satisfaction and continuance intentions. Direct relationships between dimensions were identified. These showed that user intentions to continue using an online retail site are directly influenced by perceived usefulness, user satisfaction and system quality. User satisfaction is directly influenced by service quality and perceived usefulness, whilst perceived usefulness is directly influenced by trust and information quality. Trust in the online retailer is directly influenced by service quality and system quality. The implications of these and other findings are discussed.

In this study we report on a classification scheme of intended e-services use based on levels of information exchange between users and Web sites. We refer to the broader concept of e-service as a service available via the Internet that completes tasks or conducts transactions. Each level varies by the amount and sensitivity of personal information exchanged in the process of seeking and obtaining information, services or goods during an online session. We then examine the relationships between two dimensions of privacy concerns (i.e., concerns related to finding personal information on the Internet and concerns related to the possible abuse of personal information submitted online) and the intended e-services use at each level of information exchange. Exploratory and confirmatory factor analysis validated the measures used on our theoretical model. The relationships between the privacy concerns and intended e-services use were then analyzed in a structural equation model. The results support the hypothesized relationships between the privacy concerns and four out of the five levels of information exchange. In addition the results show that privacy concerns increase as the amount and sensitivity of personal information submitted through Web sites increases. Keywords: privacy, e-services use, levels of information exchange, Structural Equation Modeling,

The question of why a user adopts an information technology (IT) artifact has received ample research attention in the past few decades. Although recent adoption research has focused on investigating some of the relational and experiential aspects associated with adopting and using IT artifacts, the theories utilized have been static in nature. Furthermore, many have been based on traditional models like TAM and TPB, which focus on the utilitarian benefits that users accrue from their interactions with IT artifacts. Independently, recent research has paid much-needed attention to factors surrounding the use of IT artifacts. In this paper, we offer an overview of a theoretical model that connects these two interrelated processes. Starting with a survey of concepts related to social interactions, we present an argument in support of viewing IT artifacts as social actors, whose characteristics are manifested within the context of interactions. The proposed interaction-centric model highlights how the characteristics of an IT artifact, together with the user’s internal system and other structuring factors, affect users ’ choices in terms of how to utilize the artifact. The nature of that utilization, subsequently, affects the beliefs users form about the artifact and the outcomes from using it. Furthermore, the model proposes that users will also form beliefs about their bond or relationship with the IT artifact. These beliefs do not refer to observations made in a single interaction, but rather concern users ’ mental representations of past interactions and outcomes. To facilitate the study of the relationship that develops from user-artifact interactions over time, the model describes how past interactions affect future ones. Specifically, it proposes that deciding how to utilize an IT artifact in subsequent interaction, consistent with theories of relationship development, is

www.jtaer.com DOI: 10.4067/S0718-18762009000300003

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15 years of measurement model misspecification in trust research? A theory based approach to solve this problem ANONYMOUS The existence of trust in an IT-based service and its providers is an important basis for, among others, the decision to adopt and continuously use such services. It also improves the chances for the successful collaboration in virtual teams and forming strategic alliances. Due to its importance this research area has drawn much attention and has been intensively researched in recent years. We thus deem it is necessary to analyze the current state of the art in quantitative trust research, and are guided by two research questions: a) Which distinct antecedents of the various kinds of trust have been quantitatively examined? b) How did the researchers measure trust, and how reliable are these measurements? Based on the results of the literature review we included a third research questions c) How can current trust measurement models be enhanced, based on the theory, to strengthen the impact of the results? We conducted a systematic literature review analyzing the top five journals listed in impact factor ranking (ScienceWatch.com, 2009) for the years 1995 to 2009, from which we identified a total of 57 relevant articles. We found that most antecedents were related to system trust and that a huge gap between research theory and research practice exists because all but one contribution reviewed used reflective measurement models, even though the theory suggests using a formative measurement approach. This questions the reliability of the measurements and consequently the reliability of the found antecedents. We therefore developed a formative first-order, formative second-order measurement model for trust using trust theory and a logic that is easily transferable to other areas of interest. According to our findings, future research should more rigorously discuss the appropriateness of the measurement models used and refrain from adapting previous measurement models without 2 discussing their suitability. Additionally, the formative measurement of trust should be used to gain insights into the success factors for building and supporting trust.

associate editor and ever served as chairperson of the Department of Accounting in

In this exploratory study, we investigate the role of cognitive absorption, a state of deep involvement with software, in the context of fun-oriented information systems (IS) usage. The construct of cognitive absorption has proven to be valuable for understanding the formation of user beliefs and intention to use. However, most prior studies which incorporate cognitive absorption, have focused on productivity-oriented IS usage in organizational or work-related settings. Paying tribute to the increase in fun-oriented IS usage, we develop a related research model for studying the formation of user beliefs that explicitly considers cognitive absorption. We evaluate the proposed variables and the research model based on empirically gathered Video on Demand (VoD) data. Our results indicate that cognitive absorption is affected by computer playfulness and a construct called perceived quality. Cognitive absorption, in turn, plays an important role in explaining perceived enjoyment. Contrary to our assumption, perceived enjoyment does not have a significant positive influence on the intention to use VoD repeatedly. Keywords: Cognitive Absorption, Fun-Oriented / Hedonic IS Usage, Video on Demand 1 1