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...

Based on the four major types of economic cycles (Kondratieff, Juglar, Kitchin, Kuznet), the paper aims to determine their actual length (for the U.S. economy) using cyclic regressions based on Fourier analysis.

In this paper, we have investigated the dependence of investment 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 if an increase of 1% of GDP leads to an increase in investment of...

The article deals with a production function of three factors with constant scale return where each elasticity of two of the factors is a function of first degree. After the examination of parameters conditions according to the axioms of the production functions, there are computed the main...

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 the consumer’s theory, a crucial problem is to determine the substitution effect and the revenue effect in the case of one good price’s modifing. There exists two theories due to John Richard Hicks and Eugen Slutsky which allocates differents shares of the total change of the consumption...

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...