The paper analyzes the circumstances in which the combination of forecasts yields better results than the use of the forecasts separately. We propose a method of combining forecasts based on their efficiency on long and medium-term using as benchmarks the combination of forecasts based on...

In the national economy system, the subsystems of agricultural production (ASPEFV) and of food production (PABT) are “anchored” to other sectors by a series of “backward linkages” and “forward linkages”. Representing, in fact, the intermediary consumption intensity in final...

Flight training is a very complicated process. Including the full flight simulators makes this much more complicated, indeed supposed to make it easy. Flight simulators are very important devices, eliminating difficulties, cost and risks likely to be encountered in flight training. It is...

This paper attempts to analyze the employment dynamics in some Central and East European countries using the principal component analysis. The data considered regards the percentage of employees in the total labor force for seven branches of the economic activity in 2000. The analyses comprise...

The new (2002) version of the "Pre-Accession Economic Program" has to take into account both the experience accumulated in the implementation of its previous (2001) form, and the changes occurred during 2001-2002 in the domestic and international environment, which have affected the Romanian...

There is a relationship between predictability and complexity. The problem of evaluating the complexity of the macroeconomic phenomenon can be reduced to decomposition into its principal components (which may have, in their turn, a certain degree of complexity) and to identify its common sources...

Having in view the three main methods for the estimation of the informal economy's size, the study focuses in the first part on data and methodological problems, trying at the same time to outline a few behavioral aspects by using only simple simulation models. Thus, based on a 288-sample and...

The first section attempts to define the main problems, taking into account that the productive performance of the Romanian economy is affected by a double constraint – both from a supply side and the from the demand side. Four essential factors are identified on the supply side: the existence...

This paper tests the relationship between above market returns and beta, size, leverage, book-to-market equity and earning-price ratios for the Bucharest Stock Exchange common stocks. Results from cross-sectional regressions document that both book-to-market equity and earning-price ratios are...

The growth rate of different economies in Europe depends strongly on the production and, especially, on the consumption of energy resources. As an empirical rule, the development of such economies is closely interrelated with a consistent CO2 emission into atmosphere. However, this aspect has a...