Microdata protection is a hot topic in the field of Statistical Disclosure Control, which has gained special interest after the disclosure of 658000 queries by the America Online (AOL) search engine in August 2006. Many algorithms, methods and properties have been proposed to deal with microdata disclosure. One of the emerging concepts in microdata protection is kanonymity, introduced by Samara...

Economists, when faced with undesirable bidder behavior in an auction, have often studied how changing the auction format can be beneficial. We study instead how changing the information available to bidders can change bidder behavior and increase the revenue an auction generates. We study common-value second-price auctions where bidders differ in the precision of their information (i.e., are e...

Natural language communications using social networking and blogging services can result in the undesired revelation of private information. Existing disclosure control is tedious and error-prone because the user must set the disclosure level manually and must reconsider the level every time a new text is to be uploaded. This can lead to the revelation of private information or reduced enjoymen...

In this study, I investigate the predictive content of aggregate equity purchases and sales by senior corporate officers and directors in a sample of 39 countries. I find that countrylevel net purchases by corporate insiders are positively associated with future countrylevel market returns, controlling for other contemporaneous signals and risk factors. The predictive content of aggregate insid...

background : the aim of this study was to explore saudi cancer patients' views regarding cancer information disclosure and whether differences existed between regions or gender. methods : in this cross-sectional questionnaire-based prospective survey, we interviewed 332 saudi cancer patients who received oncological care at king fahd university hospital, al-khobar, saudi arabia from july 2002 t...

In e-government initiatives, the sharing of information is crucial for empowering citizens and boosting joined-up services. The lack of clear guidance on how to share government data can potentially harm Freedom of Information and or Data Protection rights. This article addresses this issue by drawing from the main concerns governments have when dealing with Freedom of Information and Data Prot...

When it enacted The Health Insurance Portability and Accountability Act of 1996, Congress mandated establishment of privacy regulations covering individual health information. Title II of HIPAA, the Privacy Rule that became effective on April 14, 2001, offers Americans the first-ever set of comprehensive protections against the unintended and/or inappropriate disclosure of personal health infor...

The present research examines what kinds of factors influence Internet users’ decision to disclose their personal information. The present study investigates the perceived value of the benefits that Internet users can get from web sites and costs that are supposed to be caused by personal information disclosure behavior. The larger the perceived value of the benefits provided by a certain web s...

Internet application technologies, such as cloud computing and cloud storage, have increasingly changed people's lives. Websites contain vast amounts of personal privacy information. In order to protect this information, network security technologies, such as database protection and data encryption, attract many researchers. The most serious problems concerning web vulnerability are e-mail addr...

Personal information on individuals is increasingly shared between companies that do not belong to the same industry. Such exchange may occur for purposes of risk assessment, identity veri…cation or cross-marketing. Secondary purposes of data use are regulated under the European Data Protection Directive, but implementation in Europe di¤ers from one country to another. At the EU level, there is...