Tourism represents an important field of economic and social life in our country, and the main sector of the economy of Constanta County is the balneary touristic capitalization of Romanian seaside. In order to statistically analyze hydro tourism on Romanian seaside, we have applied...

This paper deals with the codispersion coefficient for spatial and temporal series. We present some results and simulations concerning the codispersion coefficient in the context of spatial models. The results obtained are immediate consequences of the asymptotic normality of the sample...

During the last decades many financial analysts, either theorists or practitioners, have dedicated their studies to the interactions between different financial sectors. The results of these researches confirm that commodities, bonds and stock markets are closely related, therefore a thorough...

Increases in oil prices induce various economic and political impacts, such as greater attention being given to renewable substitute alternatives. From this perspective, this study provides some descriptive statistics and univariate estimations for one of the countries that cannot meet its...

In a simple multiple linear regression model, the design variables have traditionally been assumed to be non-stochastic. In numerous real-life situations, however, they are stochastic and non-normal. Estimators of parameters applicable to such situations are developed. It is shown that these...

In this article we try to determine whether there is a relation between the quantity of athmospheric methane and the number of diseases of circulatory system, at the level of the whole country.We first analyze the time series of the quantity of pollutant between 1990 and 2008 and then we predict...

Many statistical methods for truncated data rely on the independence assumption regarding the truncation variable. In many application studies, however, the dependence between a variable X of interest and its truncation variable L plays a fundamental role in modeling data structure. For...

In the frame of this article we submitted the practical possibilities to analyse the stock market activity in Romania, by means of the linear regression model. Thus, the study is focusing on the existing correlations between the yield of a portfolio formed by ten financial assets issued by...