This study is designed to model and forecast Nigeria's stock market using the AllShare Index (ASI) as a proxy. By … studyanalyzes the stock market volatility in three distinct regimes (accumulation or distri-bution - regime 1; big-move - regime 2 …

volatility of Borsa Istanbul 100 Index (BIST-100). Sample data cover the period from January 2008 to December 2017. The main … nonlinear volatility models (symmetric and asymmetric Generalized AutoRegressive Conditional Heteroskedasticity [GARCH …]-type models) were used to model and estimate BIST-100 volatility in response to political news. The findings of the paper …

The objective of this article is to investigate the volatility asymmetry, volatility-volume relationship by considering …-GARCH models to examine the volatility pattern in the stock market. Second, both contemporaneous and lagged trading volumes are … augmented in the volatility model to empirically verify the validity of Mixture of Distribution Hypothesis (MDH) and Sequential …

This paper examines the effect of foreign exchange news announcements on the volatility of stock returns in Nigeria … market volatility in Nigeria under symmetric conditional variance. However, there was strong evidence of asymmetric effect … volatility equations. The empirical results revealed a positive and significant effect of exchange news announcements on stock …

framework is a bivariate volatility model, where volatility spillovers of either positive or negative sign are allowed for. Our … countries. Regarding the volatility spillovers, such spillovers from bond returns to those of stocks are stronger than the other … results show that by considering time-varying return and volatility spillovers when calculating the risk-minimising portfolio …

We examine the performance of volatility models that incorporate features such as long (short) memory, regime …-t). Second, we perform a comprehensive panel forecasting analysis of the MSM models as well as other competing volatility models …-share equity indices, bond indices and real estate security indices at the country level. Furthermore, we investigate …

-of-the-week effects in returns and volatility using the Nigerian stock exchange (NSE-30). The Gaussian, Student-t, and the Generalized … are sensitive to error distribution. Our finding also shows that evidence of good or bad news in volatility does not only …

In this paper, we use factor-augmented HAR-type models to predict the daily integrated volatility of asset returns. Our … approach is based on a proposed two-step dimension reduction procedure designed to extract latent common volatility factors …, we apply either LASSO or elastic net shrinkage on estimates of integrated volatility of all constituents in the dataset …

breaks) in the volatility of financial time series. Comparative study of three techniques: ICSS, NPCPM and Cheng's algorithm … breaks in volatility, while Cheng's technique works well only when a single break occurs. …