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improved ex-post volatility measurements but has also inspired research into their potential value as an informa-tion source … for longer horizon volatility forecasts. In this paper we explore the forecasting value of these high fre-quency series in … conjunction with a variety of volatility models for returns on the Standard & Poor's 100 stock index. We consider two so …
Persistent link: https://www.econbiz.de/10011326944
The paper outlines and tests, by means of Monte-Carlo simulations, a simple strategy of using existing non-parametric tests for jumps at the daily frequency to identify jumps at higher sampling frequencies. The suggested strategy allow for identification of the number of jumps and jump times...
Persistent link: https://www.econbiz.de/10013124973
underlying stock (asset) is subject to discontinuous market regime type of shifts in its mean or volatility whose risk can be …
Persistent link: https://www.econbiz.de/10013130931
This paper investigates persistence in high-frequency, intraday data (and also daily and monthly ones) in the case of the EuroStoxx 50 futures over the period from 2002 to 2018 (720 million trade records) using R/S analysis and the Hurst exponent as a measure of persistence. The results indicate...
Persistent link: https://www.econbiz.de/10014242794
volatility over the benchmark rational expectations case and exactly matches the standard deviation of consumption. Finally, the … model generates time varying volatility consistent with the data on quarterly equity returns …
Persistent link: https://www.econbiz.de/10013054127
This paper estimates a bivariate HEAVY system including daily and intra-daily volatility equations and its macro …-augmented asymmetric power extension. It focuses on economic factors that exacerbate stock market volatility and represent major threats to … commodity markets on stock market realized volatility. Specifically, Economic Policy Uncertainty is shown to be one of the main …
Persistent link: https://www.econbiz.de/10012158736
This article analyzed the presence of long memory in volatility in 5 Asian equity indices namely SENSEX, CNIA, NIKKEI …-sample forecast accuracy. The results confirmed the presence of long memory in both the return and volatility series for all the five … markets under study. Among the group, CNIA and STI showed most persistence in both the return and conditional volatility. In …
Persistent link: https://www.econbiz.de/10013003892
Differences in the behaviour of asset prices depending on data frequency have not been thoroughly investigated in the literature despite their possible importance. In particular, high-frequency data might contain more information about financial assets because they are updated more rapidly in...
Persistent link: https://www.econbiz.de/10015394356
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
Long memory (long-term dependence) of volatility counts as one of the ubiquitous stylized facts of financial data …
Persistent link: https://www.econbiz.de/10003932609