The paper treats a problem of a great importance in the author's view relatively to the behavior of polynomial regressions to linear transformations of the variables. If, from a theoretical point of view, the estimation of a process using regressions give the same results, regardless of the size...

In this paper, we have investigated the dependence of taxes based on GDP in Romania during 2001-2011. After determining the regression equation, an apparently surprising conclusion is that there is a weak dependence of tax revenues to the GDP.

In this paper, we have investigated the dependence of money demand based on GDP and the real interest rate in Romania during 2001-2011. After determining the regression equation, an apparently surprising conclusion is that the most influential factor in the demand for money is the level of GDP...

In this article, we will carry out an analysis on the regularity of the Gross Domestic Product of a country, in our case the United States. The method of analysis is based on a new method of analysis – the cyclic regressions based on the Fourier series of a function. Another point of view is...

In this paper, we have investigated the dependence of consumer demand for the disposable income of statistical terms. After the regression analysis, we obtained that, in the case of Romania, there is a huge marginal propensity to consume – 74.11% relative to the disposable income. Also, an...

This paper presents a method for adjusting the time series in the direction of the minimum deviation of the transition process from one period to another. The formulas so obtained satisfy the condition of invariance of aggregate data, the stability on successive re-adjustment action and the...

In this paper, we have investigated the dependence of net export based on GDP and the consumer demand in Romania during 2001-2011. After determining the regression equation, the main conclusion is that in Romania is an excessive dependence of net exports from the level of consumption. The fact...