purpose of this paper is to analyze these two indexes in order to capture the volatility inherent in ENSO. The empirical … results show that both the ARMA(1,1)-GARCH(1,1) and ARMA(3,2)-GJR(1,1) models are suitable for modelling ENSO volatility …

This paper analyzes the relationship between the volatility of corporate bond returns and standard financial and … volatility that distinguishes the short-term dynamics from the long-run component of volatility. Both the in-sample and out …

Within the context of volatility timing and portfolio selection this paper considers how best to estimate a volatility … model. Two issues are dealt with, namely the frequency of data used to construct volatility estimates, and the loss function … used to estimate the parameters of a volatility model. We find support for the use of intraday data for estimating …

We analyze the puzzling behavior of the volatility of individual stock returns over the past few decades. The … literature has provided many different explanations to the trend in volatility and this paper tests the viability of the … volatility over time lend themselves to explanations about the difference in volatility levels between firms in the cross …

liquidity shock, separating information maximum likelihood estimation of the integrated volatility and covariance with micro … illustrations, EVT and tail-risk modelling, with evidence from market indices and volatility series, the economics of data using … simple model free volatility in a high frequency world, arbitrage-free implied volatility surfaces for options on single …

correlations and volatility spillovers between crude oil and stock index returns, pricing exotic options using the Wang transform …, the rise and fall of S&P500 variance futures, predicting volatility using Markov switching multifractal model: evidence …, forecasting volatility via stock return, range, trading volume and spillover effects: the case of Brazil, estimating and …

This paper analyzes two indexes in order to capture the volatility inherent in El Niños Southern Oscillations (ENSO … suitable for modelling ENSO volatility accurately, and that 1998 is a turning point, which indicates that the ENSO strength has …

mean and volatility. The endogenous structural breakpoint unit root test, ARDL model, and alternative volatility models … price while the volatility of global fertilizer prices and crude oil price from March to December 2008 are higher than in …