Recent work done within the CNCSIS IDEI ID_1046 financed project has resulted in some ideas related to complex system behaviour and to certain ways in which this behaviour may be described using nonlinear models especially in relation to the evolution of the PIB and its components. We are...

The distribution of persons in each economy by their income is similar to the Maxwell-Boltzmann equilibrium distribution encountered in various physical systems. The transactions the persons are making to buy things that make them survive (in all sort of ways) are making them ‘poorer’,...

GDP and its components’ evolution show an oscillatory behavior. As an alternative approach to classical cyclical behavior producing models the paper analyses this behavior both by Fourier transforms of the data series and by a discussion of the roots configuration of the associated second...

The model is one theoretical approach within a broader research program that could verify the nonlinear conjectures made to quantify and predict potential discontinuous behaviour. In this case, the crisis behaviour associated with financial funds reallocation among various credit instruments,...

Considering the epistemic and ontological sense of principles and functions and the way they contribute to the creation and evolution of institutional structures a model was developed in which the reaction-diffusion of mimes (Dawkins) in a human niche (Popper) is described as a Brusselator that...

The study aims to extend the GARCH type volatility models to their nonlinear TAR (Tong, 1990) and STAR-based (Terasvirta, 1994) counter parts where both the conditional mean and the conditional variance processes follow TAR and STAR nonlinearity. The paper further investigates the models under...

In this study we analyse the issue of mean reversion in forward discount based on nonlinear framework for seven currencies. Compared to previous study, we apply a novel approach of a threshold regression (TAR) and followed by nonlinear unit root tests. This approach disentangles tbodhe issue of...

This paper aims to explore the forecasting accuracy of RON/USD exchange rate structural models with monetary fundamentals. I used robust regression approach for constructing robust neural models less sensitive to contamination with outliers and I studied its predictability on 1 to 6-month...

The paper presents the yearly and monthly forecast of the Romanian transition economy performed on the basis of the “Dobrescu” macromodel.

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...