previous electronic commerce (ec) studies have found thatconsumer characteristics are important when considering issues related tothe acceptance of online shopping. however, most studies have focusedon a single product or similar products. the effects of different producttypes have been relatively neglected. to overcome this limitation, thepurpose of this study was to explore the effects of dif...

M. Kudo Y. Araki H. Nomiyama S. Saito Y. Sohda Recent incidents involving the loss of personal information and identity theft have raised concerns worldwide over information privacy. In Japan, the Personal Information Protection Act went into effect in April 2005, requiring every enterprise to manage sensitive personal information on servers, workstations, and personal computers throughout the ...

Privacy concerns are becoming more important as more personal data moves online. It is therefore of interest to develop versions of data-processing algorithms which can be guaranteed to preserve the privacy of individuals’ data. A general method for creating a privacy-preserving version of a convex optimization problem is described, along with applications to machine learning, statistics, and r...

Many Internet services rely on consumers disclosing their personal data. Despite heavy usage and wide acceptance of services like Online Social Networks, doubts about sustainability of trusted relationships remain. Surveying consumers about their preferences reveals severe concerns about the fate of their personal data. In stark contrast to privacy concerns (stated preferences), however, consum...

Despite the obvious importance of privacy concerns in the information age, “privacy” remains a messy concept in the academic literature. Scholars are thus attempting to clarify and systematize the privacy concept. They have proposed two important dimensions of privacy concerns: 1) proportionality, or the adequate, relevant and non-excessive collection of personal data, and 2) secondary usage, o...

It is well understood that processing personal data without effective data management models may lead to privacy violations. Such concerns have motivated the development of privacy-preserving systems and legal frameworks such as the EU General Data Protection Regulation. However, there is a disconnect between policy-makers and engineers with respect to the meaning of privacy. In addition, it is...

Despite increased concern about the privacy threat posed by new technology and the Internet, there is relatively little evidence that people’s privacy concerns translate to privacy-enhancing behaviors while online. In Study 1, measures of privacy concern are collected, followed six weeks later by a request for intrusive personal information alongside measures of trust in the requestor and perce...

Following the present open data policies, traffic data are collected and increasingly made openly available by different organizations. Yet, expanding use of mobile technologies with tracking possibilities provides means to collect precise and rich information about individual vehicles and persons in traffic. This personal driving data, combined with other open traffic data, have a great potent...

Location-Based Services (LBS) use positioning technology to provide individual users the capability of being constantly reachable and accessing network services while ‘on the move’. However, privacy concerns associated with the use of LBS may ultimately prevent consumers from gaining the convenience of ‘anytime anywhere’ personalized services. We examine the adoption of this emerging technology...

Privacy issues are major concerns in disclosing sensitive personal information such as health-related information. This study investigates the impact of personal dispositions on forming privacy concern and trust in context of disclosing personal health information online, based on utility theory and prospect theory. The study is among the first to provide a comprehensive list of constructs rela...