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...

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...

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...

In Romania 56.8 percent of households are to be found in cities and municipalities and 43.2 percent for the rural areas. Occupational status of household head has a particularly importance and a strong impact over the size and structure of revenue, expenditure and household consumption, as well...

Pipelines that carry much of the world’s oil and gas snake through the depths of the Black Sea, the frigid waters of the Russian Arctic and cross some of the world’s most dangerous conflict zones. The value of these pipelines, oil and gas installations, and nuclear power plants makes them...

The emergence of new patterns of conflict with globalization has led to the re-configuration of the security agreement and the emergence of a "new security paradigm" in recent years. Securing could still lead to neglect issues of governance and the creation (or re-creating) the state monopoly of...

Statistical characterization of the SME’s sector contribution to the development of the national economy involves the calculation and analysis of some adequate indicators (enterprises number, occupied population, turnover, investments volume etc.) The analysis of the model proposed in this...

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...

Considering as starting point the theory developed by H. Markowitz in the years '50, J. Treynor (1962), W. Sharpe (1964), J. Lintner (1965) and J. Moshin (1966) have elaborated the famous model for evaluating the financial assets, CAPM. This model is utilized in order to set up the expected...

In this paper, the authors measure, with the help of a multiple regression model, the links between the value of average social insurance pension, as resultant variable, and as factorial variables, gross average salary, annual inflation ratio and the annual evolution of GDP. The model is applied...