We study disclosure dynamics when the firm value evolves stochastically over time. The presence of litigation risk, arising from the failure to disclose unfavorable information, crowds out positive disclosures. Litigation risk mitigates firms’ tendency to use inefficient disclosure policies. From a policy perspective, we show that a stricter legal environment may be an efficient way to stimulat...

Received: 30 March 2009 Revised: 22 September 2009 2nd Revision: 9 December 2009 Accepted: 11 December 2009 Abstract The global use of online communities has exploded to involve hundreds of millions of users. Despite the tremendous social impact and business opportunities afforded by these communities, little information systems (IS) research has addressed them – especially in a cross-cultural ...

This study examines privacy disclosure risks when multiple records in a dataset are associated with the same individual. Existing data privacy approaches typically assume that each individual in a dataset corresponds to a single record, which tends to underestimate the disclosure risks in the multiple-record problems. We propose a novel privacy approach, which uses a measure called g-balance to...

Minimum distance controlled tabular adjustment (CTA) is a recent perturbative approach for statistical disclosure control in tabular data. CTA looks for the closest safe table, using some particular distance. In this talk we provide empirical results to assess the disclosure risk of the method. A set of 33 instances from the literature and four different attacker scenarios are considered. The r...

We read with interest the article by Uzbeck et al 1 demonstrating increased patient anxiety upon receiving detailed information regarding complications of bronchoscopy, in addition to the letter by Echavarria et al 2 documenting the consenting practices of 33 respiratory physicians in the north east of England. A wide variation in practice is identified. The General Medical Council guidance for...

Mutual fund investors are largely middle class Americans2, many of whom are investing for essential long-term objectives like retirement and college education. For these individuals to make appropriate investment decisions, they must understand all dimensions of risk, including, perhaps most importantly, that risk and reward are closely related and that it may be necessary to assume certain “ri...

BACKGROUND Lesbians, gays, and bisexual people (LGB) present high levels of suicidal ideation. The disclosure of sexual orientation is a stressful experience which presents a high suicide risk. Research has not paid sufficient attention to stress during this disclosure in order to understand suicide among LGB people. The aims of this study were to investigate: (1) the characteristics of stress ...

Masking methods protect data sets against disclosure by perturbing the original values before publication. Masking causes some information loss (masked data are not exactly the same as original data) and does not completely suppress the risk of disclosure for the individuals behind the data set. Information loss can be measured by observing the differences between original and masked data while...

We propose an approach for assessing the risk of individual identification in the release of categorical data. This requires the accurate calculation of predictive probabilities for those cells in a contingency table which have small sample frequencies, making the problem somewhat different from usual contingency table estimation, where interest is generally focussed on regions of high probabil...

The paper discusses key issues in the measurement and control of risks in Islamic Financial Services Institutions, particularly the implications of profit sharing investment accounts (PSIA) for risk measurement, risk management, capital adequacy and supervision. Cross country data on a sample of banks reveal a considerable smoothing of returns paid to PSIA, despite wide divergences in risk. Thi...