The application of qualitative choice models is usually made by neglecting the analysis of autocorrelated and heteroscedastic errors. In the current paper, we aim to evaluate and mitigate the effects of violation of such a hypothesis using as example the modeling of confidence in industry in...

In this paper we study the usefulness of using confidence indicators derived from business surveys in the assessment of the state of economy and in short-term forecasting. For this purpose, we consider the relationship between the industrial confidence indicator and industrial production index...

This paper starts from the premise that there is a strong relationship between individual values and human development. In other words, the values we embrace act as facilitating factors or, on the contrary, as barrier for our personal development. Data from World Values Survey database and from...

For some countries the oil is the main source of income, while for others it represents the main raw material for energetic needs. Thus, the oil price has major influence on their economies and it is important for them that it stabilizes at a level profit

This paper analyses one of the components of a time series, that is the seasonal component. The phenomenon studied in the paper is the unemployment in Romania during 1996-2005. The unemployment seasonality is measured by three indicators: low-peak seasonality, amplitude seasonality and mean...

In this paper we propose the prognosis of the unemployment rate in the European Union through the Box-Jenkins method and the TRAMO/SEATS method as well as the detection of the method which proves to provide the best results. The monthly unemployment rate in the European Union is affected by...

At present, both at European Union and world level, experts are preoccupied to find the best method for the deseasonalisation of a time series that should assure the comparability of statistical data. The present paper follows the line of these researches. In the study, we undertake a comparison...

The purpose of this paper is to study the identification methods of the nature of the seasonal component of a time series. These methods are represented by the verifying tests of the unit root for the models of seasonal autoregressive processes: the HEGY test, the Franses test, etc. In practice,...