The research in this thesis has been undertaken to develop statistical tools for monitoring adverse events in hospitals that adjust for varying patient risk. The studies involved a detailed literature review of risk adjustment scores for patient mortality following cardiac surgery, comparison of...

In situations where an adverse social outcome affects disadvantaged and advantaged groups in society differently, the rates at which those groups experience favorable or adverse outcomes tend to be systematically related to the overall prevalence of the outcome. Specifically, as the overall...

Using the unique reporting environment in Korea, this study investigates the determinants of human resource investment in internal controls for 1352 listed firms disclosing the number of personnel who are in charge of internal control-related tasks (IC personnel) from 2005 to 2008. We find that...