This paper surveys the most important developments in multivariate ARCH-type modelling. It reviews the model specifications and inference methods, and identifies likely directions of future research.

A problem in the estimation of gestational age by ultrasound measurement of fetal bone lengths (the femur length, F, and the biparietal diameter, BPD) is described. By means of multivariate ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Objective To externally validate the Paediatric Emergency Care Applied Research Network (PECARN) rule for identifying febrile ...

With nearly two decades of retail management and project management experience, Brett Day can simplify complex traditional and Agile project management philosophies and methodologies and can explain ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

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Mohbad’s death in September 2023 is one incident Nigerians won’t forget in a hurry. It began with a post by Instablog9ja announcing that the promising singer and former Marlian Records signee had died ...

A better way to drive growth and profitability by Scott Magids, Alan Zorfas and Daniel Leemon When companies connect with customers’ emotions, the payoff can be huge. Consider these examples: After a ...

In the spring of 2009, as the global financial crisis continued to roil markets and businesses, the chief executive of a multinational consulting company called an all-hands teleconference. Revenues ...

Dr. Steier is a public health scientist who specializes in science communication. The health secretary, Robert F. Kennedy Jr., says he wants to understand what causes autism. It’s a perfectly laudable ...