In terms of a portfolio of shares, market risk is caused by the price change measures under discussion and that is why it is important to consider carefully the historical evolution of prices in order to be able to determine if there is a certain cyclical trend that may affect the portfolio in...

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 increasing demand of relevant, viable, coherent data users, in useful time, to early detec economic vulnerabilities and turnpoints in business cycles, especially during the economical and financial crisis, demands a prompt, coordinated response by statistical institutions. High quality short...

With this work, the authors are submitting the main theories, which led to the definition of the concept of “inflation”, pointing out the successive acceptations, which the economists – starting with classics, Adam Smith’s contemporaries – have granted, over the time, to this...

Under the hypotheses IA and IB, OLS estimators are both linear and stationary. For it to provide the same minimum variance of all linear and stationary estimators and to take part of BLUE, it is necessary that the classical assumptions IIB and IIC should be available. As in the case of...

The economic and financial crisis considered within the national behavior, within the behavior implied by the one involved by the overlapped context, within the mixed and overlapped behavior, both national and international (and vice-versa), proved that each country and the European Union as...

The characterization of the evolution over a past period (ex-post) of the prices for consumption goods and services acquired on the market implies the construction and the analysis of the specific chronological series. These series are built up for both absolute and relatives indicator, mainly...

Statistical models are tools that help the investor in determining the amount of dependent, depending on the factors causing them, namely of independent variables. It is very important for the investor to understand how funcþoneazã these models and what is the impact of an erroneous uses of...

The member states of EU have accepted the candidature of Romania and Bulgaria. This paper presents the most importants issues drawn forward by this agreement. Romania shares the same situation, obligations and engagements as the other member states. Romania must favor the implementation of...

The Lowe price index is a type of index in which the quantities are fixed and predetermined. The Lowe quantity index is a type of index in which the prices are fixed and predetermined. Many of the indices produced by statistical agencies turn out to be Lowe indices. Lowe indices have certain...