The analysis of the correlations between the economic variables can be performed depending on non-linear functions also, which are linearized by transformations. We proceed likewise in order to submit the non-linear model in a simple equivalent form, allowing an easy interpretation of the...

In the Romanian economy, the constructions sector occupies an important and significant place. As our economy is on a developing path, it is expected and normal that the results and weight of this activity is focused on the private sector and on the individual population. The state diminished...

Linear regression model involves the identification of variables for defining specification for variable and model residuals; the context in which the regression model is used. Analysis of chronological (time) using a temporal function which, in essence, is also a regression, with a variable...

Starting 1.04.2001, in the Romanian Public Pensions System the pension calculation method has changed. The calculation formula was modified. If until then persons who applied for pension chose a favorable calculation base in the last ten years, of which only five consecutive years were taken...

The evidence of the contribution’s base is realized in a national information system only since April 2001. Previous to this period is the “contest” of certificates which prove incomes not registered in employment records. This competition depends at the level of each person on the keeping...

This paper presents the main aspects regarding the international trade of Romania. From the point of view of the weight of the main groups of goods out of the combined Classified List, in the overall export operations for active processing, the main weights went to: clothes articles made out of...

Non-parametric methods are useful, but raises some problems. In practice, they require a large number of observations and are used for a relatively small number of explanatory variables. Moreover, the result is sensitive to the choice of the smoothing parameter and to a lesser extent in the...

Before beingutilized, any model based on the regression function must be analysed and accommodated to the actual conditions implied by the performed analysis. The veracity of the outcomes resulting out of the utilization of the regression model implies that the significance of the model being...

The macroeconomic indices analyse shall be studied on goinging development in order to know the manner of actual transformation of these during each particular stage.For an actual analyse of phenomena development over time, it use as study instrument the statistical adjustment series, the...

As well known, Romania is one of countries of the most pronounced agrarian profile from the European Union. Unfortunately, this character does not mean implicitly neither a corresponding contribution of the agriculture to the GDP forming, as already mentioned previously, nor a high level of...