We propose a management tool to identify groups of public schools that have similar standards of performance and therefore need similar support and guidance.The student's result is measured with the "Prova Brasil" (PB) for mathematics and for Portuguese language, and with an indicator of the...

We propose a management tool to identify groups of public schools that have similar standards of performance and therefore need similar support and guidance.The student's result is measured with the "Prova Brasil" (PB) for mathematics and for Portuguese language, and with an indicator of the...

In this paper business cycles are considered as a multivariate phenomenon and not as a univariate one determined e.g. by the GNP. The subject is to look for the number of phases of a business cycle, which can be motivated by the number of clusters in a given dataset of macro-economic variables....

The paper adresses the need for more flexibility in the integration process of the European Union after its recent eastward enlargement. Due to the increasing number of decision-makers and the increasing heterogeneity of economic structures, financial constraints, societal preferences, and...

Survey data are potentially affected by cheating interviewers. Even a small number of fabricated interviews might seriously impair the results of further empirical analysis. Besides reinterviews some statistical approaches have been proposed for identifying fabrication of interviews. As a novel...