A new family of kernels is suggested for use in heteroskedasticity and autocorrelation consistent (HAC) and long run variance (LRV) estimation and robust regression testing. The kernels are constructed by taking powers of the Bartlett kernel and are intended to be used with no truncation (or...

This paper evaluates the forecasting performance of a continuous stochastic volatility model with two factors of volatility (SV2F) and compares it to those of GARCH and ARFIMA models. The empirical results show that the volatility forecasting ability of the SV2F model is better than that of the...

The paper uses data from a large representative survey of Hungarian higher education graduates (DPR 2010) to study the early labour market effects of field of study and college quality. Propensity score matching average treatment effect method is used to reveal the effect of the field of study,...

This paper applies revealed preference theory to the nonparametric statistical analysis of consumer demand. Knowledge of expansion paths is shown to improve the power of nonparametric tests of revealed preference. The tightest bounds on indifference surfaces and welfare measures are derived...

The paper uses data from a large representative survey of Hungarian higher education graduates (DPR 2010) to study the early labour market effects of field of study and college quality. Propensity score matching average treatment effect method is used to reveal the effect of the field of study,...

Separating seasonal components from other sources of economic fluctuations is crucial for both economic modeling and policy making. Practitioners treat seasonality as noise to be removed before estimating models and tend to apply deseasonalizing methods i

Numerous empirical studies have shown evidence of nonlinearities in financial time series, which can be of both a deterministic and a stochastic nature. Chaos is an example of the former, and heteroscedasticity in the conditional variance an example of the latter. We apply a test, the BDS test,...

The paper analyzes Croatia's income convergence over the period from 2000 to 2024 with respect to four groups of countries: the EU15, NMS8, NMS12, and SE4. Using time series methodology and fractional integration, the study examines Croatia's affiliation with different convergence clubs within...

Tanulmányomban bemutatom azokat a tényezőket, melyek befolyásolják a magyar államkötvények árfolyamait. Arra a kérdésre keresem a választ, hogy a válság során mely felárak mozgatták a hosszú lejáratú állampapírok hozamait. Egy Magyarországhoz hasonló, kis, nyitott, nettó...

The study provides a brief summary of the theoretical and empirical considerations related to the possible determinants of firm growth. With a special focus on small and medium-sized firms, we investigate the role of the availability of internal and external finance. After examining the key...