Firstly, the study draws out symmetrical subsets of 27 member countries of the European Union (EU27) countries according to their extents of business cycle symmetry with the whole of EA12, quantified by correlations of cycles between the countries’ GDP components and the EA12s GDP. The...

Variable selection is a venerable problem in multivariate statistics. Simulated annealing is one of a variety of metaheuristics that can be gainfully employed for variable selection; however, its effectiveness is influenced by algorithm design features such as the construction of the initial...

In order to interpret the biplot it is necessary to know which points – usually variables – are the ones that are important contributors to the solution, and this information is available separately as part of the biplot’s numerical results. We propose a new scaling of the display, called...

The purpose of this paper is to investigate whether or not firms that are taken into the surveillance market in Istanbul Stock Exchange are experiencing financial distress. The surveillance firms present irregular behaviors and have difficulty complying with current regulation. It can be...

This study successfully establishes the principal component analysis with discriminant analysis (PCA-DA) model to assess the accuracy of contracts in the prediction markets ex ante based on the highest-price criterion. Trained by the xFuture data (7,274 contracts of future events) from...

The authors analyze the dynamics of the employment rate in Romania and propose a forecast model for it. In the paper we start with the hypothesis that the dynamics of the employment rate has a specific trend displayed by years-clusters differentiated on the value and the sign of the dynamics...

Asymptotic expansions for large deviation probabilities are used to approximate the cumulative distribution functions of noncentral generalized chi-square distributions, preferably in the far tails. The basic idea of how to deal with the tail probabilities consists in first rewriting these...