We study the impact of firms’ abnormal business operations on their future crash risk in stock prices. Computed based on real earnings management (REM) models, firms' deviation in real operations from industry norms (DRO) is shown to be positively associated with their future crash risk. This association is incremental to that between discretionary accruals (DA) and crash risk found by prior st...

In the wake of financial frauds and related audit issues, the US Congress passed the Sarbanes-Oxley (SARBOX) Act of 2002. Key to becoming SARBOX compliant are information systems (IS) that satisfy the mandates regarding internal controls, corporate governance, and fraud detection. These legal developments focusing senior management's attention on (1) internal controls are present and functionin...

Executive Overview Just as the creation of shareholder value requires performance on multiple dimensions, the global challenges associated with sustainable development are also multifaceted, involving economic, social, and environmental concerns. Indeed, these challenges have implications for virtually every aspect of a firm’s strategy and business model. Yet, most managers frame sustainable de...

We give formulas for the Tutte polynomials of parallel and series connections of weightedmatroids, generalizing and unifying formulas of Oxley and Welsh (Discrete Math. 109 (1992) 185), Bollobás and Riordan (Comb. Probab. Comput. 8 (1999) 45) and Woodall (Discrete Math. 247 (2002) 201). © 2004 Elsevier B.V. All rights reserved.

Legislators have begun to recognize the importance of how electronically stored data should be maintained and secured. Similarly, the courts have begun to differentiate electronic data from their paper analogs. Examples of some sweeping electronic record management legislation include: the Health Insurance Portability and Accountability Act (HIPAA) of 1996, the Gramm-Leach-Bliley Act (GLBA) of ...