The stock exchange markets are characterized by high dynamics of the investment activity, mainly portfolio investments. The existing relation between yield and risk, on one side, and the portfolio diversification, on the other side, are two basic aspects allowing the investors to build up a...

This paper describes a use case for macro economical models, the objective being the structural analysis of the Gross Domestic Product. The authors offer a snapshot on GDP evolution, the econometric models proposed for analysis are designed with the help of EViews software. Its performances are...

This paper is focused on analyzing the international trade of Romania in the recent period, without putting aside the evolutions in the precedent years. The authors intend to present, based on official statistical data, a synopsis of the quantitative expression of the system of international...

Statistics indicators specific chronological series to permit the establishment of the average efficiency of a portfolio of tools for a defined period of time and compare it with the return on other financial instruments or portfolios of securities. It also provides a number of valuable...

A price index may be characterized as the factor giving the relative change in this value aggregate arising from changes in prices. As such, all the major price index formulae can be expressed as weighted averages of price relatives whose weights are the shares of items in the value aggregate....

The index is sensitive to time changes of quantity and price data, over time, drawn from sub-measures, partially additive as they are measured in different units. The index summarizes these in a time series which includes the updates in quantities and prices’ values.Because usually data are...

The occupied population includes all persons – both employees and freelancers – who develop a productive activity within the production limits of the European Accounts System.Employees represent all the persons working mainly on the basis of a formal or informal contract, for other resident...

One of the main aspects analyzed in this paper is the quarterly evolution of the seasonally adjusted GDP comparatively with the corresponding quarter of the previous year. As for the impact of foreign investments, year 2012 was a year when a series of sectors of activity kept on getting...

OLS is considered to be, by far, the most popular and well-known method for estimating parameters of multiple regression. In this case, however, it is important to underline that there is no warranty as to the fact that OLS estimators will be, in one way or another, some “perfect” estimators.