We use cellular automata simulation methods to study the competition between two languages (language A and B). We assume each of the two languages consists of F independent features and define an individual as two F-length “identity level” integer strings. The value of each integer of the...

Multidimensional Item Response Theory (MIRT) has been proposed as a means to model the relation between examinee abilities and test responses. Three recent articles proved that when MIRT is used in ability estimation, an examinee’s score could theoretically decrease due to a correct...

We examine the linkage between the Singapore and China fuel oil markets using cointegration and Granger causality tests. We find that the Singapore fuel oil spot price is positively correlated with the Shanghai fuel oil futures price and the Huangpu fuel oil spot price. The correlations are as...

In this paper, we consider the multi-dimensional Kesten algorithm studied in Xu and Dai (2012). The convergence in rth mean for the algorithm is established under the weaker assumptions than Xu and Dai (2012). Moreover, we obtain also the almost sure convergence of the algorithm under the...

Purpose The purpose of this paper is to investigate how and when service-oriented high-performance work systems (HPWS) impact employees’ service performance. Design/methodology/approach Survey data was obtained from 568 frontline service employees and their supervisors across 92 branches of a...