Option pricing by the use of Black Scholes Merton (BSM) model is based on the assumption that asset prices have a lognormal distribution. In spite of the use of these models on a large scale, both by practioners and academics, the assumption of lognormality is rejected by the history of returns....

Romanian Abstract: Optimizarea consumului de energie actual este unul din principalele preocupări ale specialiştilor din acest domeniu la nivel mondial. Începând cu anii ′70 a început să se realizeze importanţa şi necesitatea de a dezvolta o strategie de utilizare a energie electrice....

Această lucrare prezintă doi estimatori mai puţin cunoscuţi pentru vizualizarea funcţiilor de densitate şi a relaţiilor dintre variabile. Aceşti estimatori sunt neparametrici in sensul că nu sunt necesare ipoteze a priori privind forma funcţională a dependenţelor. In prezentare s-a...

This paper aims to establish particularities for the relationship between exchange rate volatility and the international trade in Romania. Currency depreciation, normally, should stimulate exports, because they become cheaper to foreign products and to discourage imports because they will spend...

In this article the author examines, based on the inflation rate and unemployment rate registered in Romania during 1993-2004, how to show Okun's Law. Results consist of two distinct models explaining the dependency between the GDP’s growth rate of and the unemployment rate’s growth and vice...

This paper approaches some main objectives of the analysis of trends in discrete time series. A major aspect of this analysis is to identify a mathematical model that describes the persistent long-term movement of the studied variable. The model could reveal some important characteristics of the...

The purpose of the present paper is to describe a model of quarterly GDP forecast, categories of uses, in accordance with the development priorities of the Republic of Moldova in the medium term. The achievement of the main purpose requires to draw up the tasks, among which: - Conceptual...

The time series techniques are widely used in the financial analysis. This paper approaches some characteristics of the financial variables that particularize their evolution. It also presents some simple techniques of the time series analysis.

The financial time series smoothing could facilitate the identification of some important characteristics such as the trend, the cyclic or the seasonal pattern. It could be also useful in forecasting the evolutions of some financial variables. In this paper we approach some smoothing techniques,...

Aspectele măsurabile ale procesului de realizare a convergenÅ£ei pe plan economic, a ţărilor UE reprezintă obiectivul principal al acestei lucrări. În acest scop, sunt prezentate ÅŸi aplicate metode statistice ÅŸi econometrice care pot evidenÅ£ia elementele caracteristice...