The article discusses the comparison of earnings achieved in groups of people who declare different levels of following hard competences: information analysis abilities, computer skills, machine operation, making calculations ...

The group of economically inactive women is heavily diversified. The reasons for staying outside the labour market are the important factors that differentiate this group. They depend on the age or level of education among ...

When a company uses a shared storage system, selection of locations during the order‑picking process is not an obvious task. Every location where the picked product is placed, can be described by means of several variables, ...

We are witnessing a paradox in the consumption space, in relation to retail activity within urban and suburban areas: One can observe over‑retailed areas, featuring retail chains and shopping malls, oftentimes occurring ...

In the presented research, we attempt to examine special investment risk measurement. We use quantile regression as a model by describing more general properties of the response distribution. In quantile regression, we ...

Spring balance weighing design is a model of an experiment in which the result can be presented as a linear combination of unknown measurements of objects with factors of this combination equalling zero or one. In this ...

The assessment of dependence between time series is a common dilemma, which is often solved by the use of the Pearson’s correlation coefficient. Unfortunately, sometimes, the results may be highly misleading. In this paper, ...

One of the manifestations of economic globalisation seen in recent years is the so‑called “new generation” type of trade agreements such as the TPP, CETA and TTIP. They aim at trade liberalisation, but their scope is ...

The issue of efficiency of financial markets has always fascinated scientists. It is significant from the point of view of assessing portfolio management effectiveness and behavioural finance. In the first part of this ...

The article addresses the question of how robust methods of regression are against outliers in a given data set. In the first part, we presented the selected methods used to detect outliers. Then, we tested the robustness ...