We derive a neat and compact representation of the asymptotic Fisher information matrix of a vector ARMA process. Its inverse can be used immediately as the asymptotic covariance matrix of the Gaussian maximum likelihood estimator. We also provide the robust sandwich covariance estimator when...

The value of effective collaboration has become increasingly critical for organizational performance and agility. Along with technical and managerial strategies, the workspace spatial environment needs to be recognized and studied for its impact on collaboration and interactive behavior at work....

This paper investigates technology investment under flexible capacity strategy with demand uncertainty. Technology investment enables a firm to reduce its total production cost, while flexible capacity strategy aims to reduce a firm׳s production waste by postponing production until demand is...

(Lecturers and graduate students at the universities compete for jobs as service personnel. Over three hundred people have already applied for positions with the Hilton Hotel. Those who are hired will say a sad farewell to the advanced specialization in which they were engaged.)

Using first-principles calculation, we have studied the properties of a series of M<Subscript> x </Subscript>Co<Subscript>1−x </Subscript>/Co(0001) (M=Pd, Pt) bimetallic surface alloys with atom M ratios from 0.25 to 1.0, then the effect of alloyed M metal on the properties of S adsorbed on these surfaces are discussed. Our calculations...</subscript></subscript>

The paper investigates the linkages between characteristics of technologies and a firm’s knowledge base. Nanotechnologies have been defined as converging technologies that operate as nanoscale, and which require integration to fulfil their economic promises. The paper analyses the degree of...

Needle-shaped PbTiO3 (PT) template particles were successfully synthesized using two different types of approaches, molten salt synthesis (MSS) and thermal synthesis method. In eutectic NaCl–KCl molten salt system, homogeneous and nonagglomerated needle-shaped PT particles were produced from...