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...

Economic time series are, in their vast majority, integrated series so, their modelling procedure stumbles upon the problem of spurious regression. When existent, cointegration is the simplest way of eliminating the illogical correlation established between time series due to the presence of...

We continue with the problem of the relation between predictability and complexity in the Romanian economy, analyzing other two components of GDP: domestic consumption and public consumption. The basic idea of this work is that the unpredictability of a system gives a measure of its complexity,...

The structure of the macromodel used for simulations is presented in Introduction and in the Appendix. For the period 2005-2008, a Main Scenario was elaborated. It embodies performances envisaged in “Romania’s Medium-Term Economic Strategy” (2000) and in the 2001-2004 versions of the...

This paper evaluates the output gap and the effects of the inflationist shocks to the Romanian economy. We use an extension of the Blanchard-Quah decomposition with three variables: the real output, the unemployment rate and the inflation. Three types of shocks are evaluated: the productivity...

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...

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...