OBJECTIVE To rank 39 surgical procedures in order of variation of inpatient surgical rates, according to a new index of variation and to test the hypothesis that there is greater variation for primarily discretionary operations than for primarily non-discretionary operations. DESIGN A population-based retrospective cohort study. SETTING Nine provinces (99.19% of Canada's population). PART...

Most performance evaluation models in operations management literature have assumed that tasks possess standardized completion criteria. However, in many operation systems, particularly in service and professional work, judgment is frequently required to determine when a task is completed. In thin paper, we show that introducing discretion in task completion adds a fourth variability buffer, qu...

Most performance evaluation models in operations management literature have assumed that tasks possess standardized completion criteria. However, in many operation systems, particularly in service and professional work, judgment is frequently required to determine when a task is completed. In thin paper, we show that introducing discretion in task completion adds a fourth variability buffer, qu...

In this research, role of accruals in elaboration of quality of earning of the companies accepted in Mumbai Stock Exchange has been studied and relationship between quality of earning through accruals and its constituents and abnormal stock return has been studied. The studied sample includes 35 companies in group A of Mumbai Stock Exchange in 2009-2013.Fordata analysisandhypothesistesting mult...

Existing non-discretionary access control systems (such as Security Enhanced Linux) are difficult to use by ordinary users. We identify several principles for designing usable access control system and introduce the Host Integrity Protection Policy (HIPP) model that adds usable non-discretionary access control to operating systems. The HIPP model is designed to defend against attacks targeting ...

The paper analyses the existence and efficiency of discretionary industrial assistance schemes under asymmetric information between an uninformed government and a uniform distribution of firms with differing productivities. Discretionary assistance allows the government to scrutinise projects in an effort to learn the type, which can reduce the ‘informational rents’ of automatic assistance, whe...

The changing economic conditions have challenged many organizations to search for more efficient and effective ways to manage their supply chain. During recent years supplier selection decisions have received considerable attention in the supply chain management (SCM) literature. There are four major decisions that are related to the supplier selection process: what product or services to order...