In this paper we present an attack on a fair exchange protocol proposed by Wu and Varadharajan. We show that, after two executions of the protocol, a dishonest participant can collect enough information in order to obtain some secret information of the other participant. This precisely allows him to compute the final signature of the other participant in all subsequent executions of the protoco...

A questionnaire used often to measure transformational, transactional and laissez-faire leadership is che Multifactor Leadership Questionnaire developed by Bass (Bass & Avolio, 1989). This study aims to test the factor structure of the MLQ as developed by Bass & Avolio. The MLQ-8Y was analysed using data collected in Dutch organizations. Seven hundred employees from eight organizations rated th...

Chatbots are increasingly able to pose as humans. However, this does not hold true if their identity is explicitly disclosed users—a practice that will become a legal obligation for many service providers in the imminent future. Previous studies hint at chatbot disclosure dilemma disclosing non-human of chatbots comes cost negative user responses. As these responses commonly attributed reduced ...

Today most organizations release and receive medical data with all explicit identifiers, such as name, address, and phone number, removed in the incorrect belief that patient confidentiality is maintained because the resulting data look anonymous. We examine three computer programs that do maintain patient confidentiality when disclosing electronic medical records: the Scrub System which locate...

This paper constructs a dynamic game model to address the following groundwater management problem, where quantity and quality of the water are taken into account. A group of farmers overexploits a groundwater stock and causes excessive pollution. A water agency wishes to regulate the farmers' activity, in order to reach a minimum level of quantity and quality but is subject to a budget constra...

Retail managers were examined to determine their leadership styles and any potential correlations to conflict management styles. Research findings suggest that successful retail managers exhibit transformational leadership styles, and those that exhibit laissez-faire leadership is strongly correlated with avoidance conflict management style. The Conflict Management Style (CMS) and Multi Leaders...