Background: Exchangeable item repair systems are inventory systems. A nonfunctional item is exchanged for a functional item and returns to the system after being repaired. In our periodic review setting, repair is performed either in-house or outsourced. When repair is in-house, a repaired item...

This article develops a principal-agent multi-period model that ties legal risks, auditing fees and internal accounting practices. The principal is the auditing firm and the agent is the client firm. The client firm can improve its credibility by improving its internal auditing practices, which...

This article describes a two-step decision support model for investing in information technology security, both development and application. In the first step, the risk level of each of the system's components is mapped, with the aim of identifying the subsystems that pose the highest risk. In...

We develop a dynamic principal-agent model to show how imperfect public information and asymmetric beliefs about payoff-relevant parameters, agency conflicts, and the agent's implicit incentives to influence the principal's posterior beliefs through his unobservable actions interact to affect...