Social contributive insurance systems which are based on the repartition principle between generations are strongly influenced by the demographic evolutions.

Romanian Abstract: Tehnicile seriilor de timp sunt utilizate frecvent în analiza financiară. Această lucrare abordează unele caracteristici ale variabilelor financiare care le particularizează evoluţia. Sunt prezentate, de asemenea, câteva tehnici simple de analiză a seriilor de timp

Romanian Abstract: Lucrarea de faţă abordează tematica arbitrajului preţurilor dezvoltată de către Stephen A. Ross (1976), care porneşte de la premiza că valorile mobiliare subevaluate pot fi revândute pe o altă piaţă în ideea de a profita în urma diferenţei de preţ, această...

Market economy is characterized at a time, among others, by the existence of twopartners, so that one has some money, a certain amount of capital, and one needs money. The first has money and wants to capitalize on them as possible, and the second wants to enter into possession of a capital base...

From the multitude of variations of capital investment on the capital market, this work cuts two of them namely capital investments in options contracts and capital investments in straddle contracts. A distinct place it occupies in the paper presentation of the operating mechanisms of the two...

The classical models of portfolio selection could not be applied on a market were the efficient market hypothesis is not valid (at least in a "weak" sense). The aim of this paper is to enlighten the difficulties of portfolio construction in a financial market with institutional and structural...