This paper analysis the measure between GDP dependent variable in the sector of hotels and restaurants and the following independent variables: overnight stays in the establishments of touristic reception, arrivals in the establishments of touristic reception and investments in hotels and...

The ordinary least square method (OLS) is frequently used for the parameters estimation of different functional relationships. Having in view a series of properties revealed by the author, this paper presents the factors that determine the size of the estimated parameters and coefficients of...

This paper demonstrates the fact that collinearity between the explanatory variables has an important influence on the estimated parameters values and, also, on the Fisher and Student tests if the Ordinary Least Squares (OLS) Method is used. The impact of collinearity in linear regressions is...

The fluctuations of the tourism movement in Romania can be highlighted by the structural change of it principal indicators, the number of tourist arrivals as well as their development trends covering the period of 2000 to 2009. Romania's international tourist flows give an overview of the...

The main objective of this research is to forecast the daily direction of Standard & Poor's 500 (S&P 500) index using an artificial neural network (ANN). In order to select the most influential features (factors) of the proposed ANN that affect the daily direction of S&P 500 (the response),...