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 interest rate and investment are among the central variables influencing the growth rate. Due to the complexity empirically demonstrated of the interest rate – investment – GDP growth relationship, last decades a growing concern over the modelling this relationship has increased...

The actual global crisis seems to influence negatively the sustainable development in EU countries. At least partially the informal economy escapes from the official registered GDP and hidden migration from the official demographic statistics. This can affect in a significant way the measurement...

Starting from existing literature and recent years studies, several modeling schemes have been developed, which may prove useful to substantiate strategies aimed at achieving a demographic and economic balance between generations. This way, we can obtain simulations from a country or group of...

At the beginning of the transition period, the public debt in Romania was insignificant. However, during the following years, the accumulating process accelerated. Although the indebtedness degree continues to be smaller than registered levels in other European countries, more dangerous could be...

In order to obtain plausible scenarios of economic development in Romania up to the 2015 horizon, we used a mix of forecasting models, from ones classified as “medium-term” to those covering longer forecasting periods. Based on the analysis of the economic transition period we mainly used...

The paper analyses the dynamics and structure of GDP in Romania during the transition period. Starting from the classical Cobb-Douglas production model, the paper investigates different scenarios for the Romanian economy on the basis of different assumptions regarding the model’s parameters....

The collapse of former communist regime in Central and Eastern Europe opened the transition period from centrally planned to market oriented economies. Thus, the exploration of economic systems in the special situation of transition has become an interesting research topic. The exposition plan...

Economic theory tells that a command system allocates resources poorly because of the impossibility of economic calculation. Therefore, once prices are freed and start to operate at quasi-equilibrium (market-clearing) levels, the hidden inefficiencies come into the open and a massive resource...

In this paper we compute performance indices like those from Mereuta et all. (2007) using the eigenvalues and the eigenvectors of the variance-covariance matrix of these indices. The eigenvalues are used in this paper to give natural weights to the performance indices in order to compute the...