Showing 1 - 10 of 2,872
Linear GARCH(1,1) and threshold GARCH(1,1) processes are established as regularly varying, meaning their heavy tails are Pareto like, under conditions that allow the innovations from the, respective, processes to be skewed. Skewness is considered a stylized fact for many financial returns...
Persistent link: https://www.econbiz.de/10011803123
Persistent link: https://www.econbiz.de/10013414184
This study provides analytical insight on modelling macroeconomic and oil price volatility in Nigeria. Mainly, the paper employed GARCH model and its variants (GARCH-M, EGARCH and TGARCH) with daily, monthly and quarterly data. The findings reveal that: all the macroeconomic variables considered...
Persistent link: https://www.econbiz.de/10011460195
In this selective review, we first provide some empirical examples that motivate the usefulness of semi-nonparametric techniques in modelling economic and financial time series. We describe popular classes of semi-nonparametric dynamic models and some temporal dependence properties. We then...
Persistent link: https://www.econbiz.de/10009230387
We examine the performance of volatility models that incorporate features such as long (short) memory, regime-switching and multifractality along with two competing distributional assumptions of the error component, i.e. Normal vs Student-t. Our precise contribution is twofold. First, we...
Persistent link: https://www.econbiz.de/10003864486
We study optimality properties in finite samples for time-varying volatility models driven by the score of the predictive likelihood function. Available optimality results for this class of models suffer from two drawbacks. First, they are only asymptotically valid when evaluated at the...
Persistent link: https://www.econbiz.de/10011772958
We study optimality properties in finite samples for time-varying volatility models driven by the score of the predictive likelihood function. Available optimality results for this class of models suffer from two drawbacks. First, they are only asymptotically valid when evaluated at the...
Persistent link: https://www.econbiz.de/10012942866
Using monthly data from seven mature and emerging markets and GARCH and EGARCH models, the study of Davis and Kutan (Applied Financial Economics, 13, 693-700, 2003) on inflation and output on stock returns and volatility is extended by including interest rate to compare the effect between three...
Persistent link: https://www.econbiz.de/10013143522
Examining the economies of the European Union from 2000 to 2023, we have found no strong evidence that the inflation rate has a negative impact on economic growth. In contrast, in line with conventional economic theory, higher interest rates are associated with lower economic growth. The results...
Persistent link: https://www.econbiz.de/10015210370
In this paper we show the validity of the adaptive LASSO procedure in estimating stationary ARDL(p,q) models with GARCH innovations. We show that, given a set of initial weights, the adaptive Lasso selects the relevant variables with probability converging to one. Afterwards, we show that the...
Persistent link: https://www.econbiz.de/10010505034