This paper aims to reduce the length of stay (LOS) in Emergency Departments (EDs) by designing a systematic response policy for various specialists depending on the demands of their consultation. We model the specialist consultation (SC) demands via non-homogeneous Poisson process of a daily cycle;

In many services, a customer's valuation for the service depends on the amount of time that customer requires for service. We thus consider a queueing model to explicitly capture such dependence in congestion-prone services. Our goal is to study the impact of the dependence on the service

The paper examines statistical and economic evidence of out-of-sample bond return predictability for a real-time Bayesian investor who learns about parameters, hidden states, and predictive models over time. We find some statistical evidence using information contained in forward rates. However,

Over the last couple of years, Bitcoin cryptocurrency and the Blockchain technology that forms the basis of Bitcoin have witnessed an unprecedented attention. Designed to facilitate a secure distributed platform without central regulation, Blockchain is heralded as a novel paradigm that will be as

The Fama-French three factor models are commonly used in the description of asset returns in finance. Statistically speaking, the Fama-French three factor models imply that the return of an asset can be accounted for directly by the Fama-French three factors, i.e. market, size and value factor,

We examine the relationship between environmental trust and supply chain behaviour in this study. We find that environmental trust measured by endemic population at the county level matters in the formation and maintenance of supply chains. In normal times, the environmental trust distance between

Motivated by the news that Car2go in San Diego replaced all of its electric vehicle fleet with gasoline-powered cars starting in May 2016, we examine the questions of whether it is optimal to use EVs in the car sharing market and what is the environmental impact of the optimal choice on the car

Financial market inefficiencies do not affect all firms homogenously. Financially constrained firms have limited or no access to financial markets and rely more heavily on internal resources to finance their operations. We show that financially constrained firms hold relatively higher inventory

Blockchain is a form of distributed ledger technology. While it has grown in prominence, its full potential and possible downsides are not fully understood yet, especially with respect to Operations Management (OM). This article fills this gap. After briefly reviewing the technical