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...

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...

The paper presents two scenarios, an inertial scenario and a restructuring scenario based on the last version of the author’s macromodel (Dobrescu 2000). The forecasts were made over a five-six years period and the indicators used were total population, population over 15 years, labour force,...

The paper describes the version (2012) of the Romanian economic macromodel2. The model has been constructed taking into account the important consequences induced by the integration of the country into the European Union and by the world crisis. Some supplementary requests of the government...

Inference about predictive ability is usually carried-out in the form of pairwise comparisons between two forecasting methods. Nevertheless, some interesting questions are concerned with families of models and not just with a couple of forecasting strategies. For instance: Are time-series models...

Based on the 2012 Version of the Romanian Macromodel, the first section of this paper discusses the evolution of the Romanian economy in 2014. The previous simulations were revised taking into account the changes in the internal and external socio-economic conjuncture or in the available...

Estimates of the macroeconomic indicators are carried out with an econometric model which tries to estimate the medium-term evolution of the Moldovan economy. The forecast takes into account the economic influence of the main economic partners of the Republic of Moldova and the internal...

Corporate credit ratings have become more important after the 2008 financial crisis. To explore the mystery, we employ the ordered probit regression models to examine the relationship between the credit rating and financial ratios in electric utilities, chemicals and communications equipment...

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...

This paper investigates the demand for money in China using annual data covering 1977-2006. To this end, we apply a newly-developed bounds testing technique to overcome the inherent limitations in testing for unit roots prior to testing for the existence of a level relationship between a...