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In the class of univariate conditional volatility models, the three most popular are the generalized autoregressive … mathematical regularity properties, including invertibility, to determine the likelihood function for estimation, and the … effects on conditional volatility of positive and negative effects of equal magnitude, and possibly also leverage, which is …
Persistent link: https://www.econbiz.de/10011688332
This paper introduces a new class of long memory model for volatility of stock returns, and applies the model on … return series for BRICS countries. In its estimation, the FIMACH model outperforms the FIGARCH and ARFIMA models …
Persistent link: https://www.econbiz.de/10013017294
It is well known that intraday volatilities and trading volumes exhibit strong seasonal features. These seasonalities are usually modeled using dummy variables or deterministic functions. Here, we propose a test for seasonal long memory with a known frequency. Using this test, we show that...
Persistent link: https://www.econbiz.de/10011673153
In this paper we use fractional integration techniques to examine the degree of integration of four US stock market indices, namely the Standard and Poor, Dow Jones, Nasdaq and NYSE, at a daily frequency from January 2005 till December 2009. We analyse the weekly structure of the series and...
Persistent link: https://www.econbiz.de/10008732289
In this paper we use fractional integration techniques to examine the degree of integration of four US stock market indices, namely the Standard and Poor, Dow Jones, Nasdaq and NYSE, at a daily frequency from January 2005 till December 2009. We analyse the weekly structure of the series and...
Persistent link: https://www.econbiz.de/10009272623
In this paper we use fractional integration techniques to examine the degree of integration of four US stock market indices, namely the Standard and Poor, Dow Jones, Nasdaq and NYSE, at a daily frequency from January 2005 till December 2009. We analyse the weekly structure of the series and...
Persistent link: https://www.econbiz.de/10013316133
In this paper we use fractional integration techniques to examine the degree of integration of four US stock market indices, namely the Standard and Poor, Dow Jones, Nasdaq and NYSE, at a daily frequency from January 2005 till December 2009. We analyse the weekly structure of the series and...
Persistent link: https://www.econbiz.de/10013135946
frequency volatilities and correlations ; Dynamic conditional correlation ; Spline-GARCH ; Idiosyncratic volatility ; Long …
Persistent link: https://www.econbiz.de/10003821063
model specifications, volatility effects and other robustness considerations continue to support our results. These results …
Persistent link: https://www.econbiz.de/10012919223
volatility. Our findings indicate that a negative relation between equity market returns and volatility prevails even after … having controlled for the time-varying determinants of conditional volatility within each regime. We also find an asymmetry … in the effect of price range on intra- and inter-regime return volatility. While price range has a stronger effect in the …
Persistent link: https://www.econbiz.de/10013034502