In this paper we shall give a new solution for the optimal assignation of workers on jobs from the point of view of execution total time minimization using the Simplex algorithm which can solve the problem using computers instead the known Little’s solution. In the second section, we shall...

This paper is a new onset about production functions. Because all papers on this subject use the projections of production functions on a plan, the analysis becomes heavy and less general in conclusions, and for this reason we made a treatment from the point of view of differential geometry in...

The paper analyzes the Hicksian effect of income and substitution for the case of n goods when all their prices change. We determine hereby the limits of variation of the two effects and the relationship between them.

In this paper we shall give a new algorithm instead of Johnson classical in the process of determination the sequence of pieces execution on two installations without initial deliverance times.

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...