In this article we shall give a generalization of Cobb--Douglas, Constant Elasticity of Substitution (CES), Lu--Fletcher, Liu--Hildebrand, Variable Elasticity of Substitution (VES) and Kadiyala production functions. We compute the principal indicators such as the marginal products, the marginal...

The Electre method aims as objective the choosing of the best variant in the conditions of existence of some decision criteria. An interesting problem arises when different variants associated to the values ??are not constant but are in intervals. The paper treats how to determine the optimal...

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 paper, we first study the static equilibrium of a a closed economy model in terms of dependence on national income and interest rate from the main factors namely the marginal propensity to consume, tax rate, investment rate and the rate of currency demand. In the second part, we study...

In the actual economical crisis, the balance of trade of Romania is a sensible chapter of the economical policy. The paper analyses the trends of exports and imports between Romania and the major partners, on global and also on groups of goods arriving at the conclusion that if Romania was on a...

In the game theory, there are a classic series of four criteria: Wald, Hurwicz, Savage, Laplace with a special importance in the choice of optimal decision in the situations of uncertainty. These criteria providing reasonable answers from different points of view. The question is to discern...

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...

The phenomenon of breaching the intellectual rights is one of a big interest in these days. The computers and the development of software, also the explosion of Internet throughout the World give the posibility of an easy breach of the author rights. We analyse in the paper some situations which...

In this paper it is give the complete solution, using the Newton’s method of approximation, for the well known Krugman’s Core-Periphery model for two regions. After the process of reduction of the system of conditions, using appropriate substitutions, it is obtained one equation which is the...

The paper treats the consumer behavior after the nature of its preferences. There are analyzed in terms of Marshall demand, the perfectly substitutable, the perfectly complementary, the case of independently goods in the meaning of utility, the case of separable goods in the meaning of utility...