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 …

A recent literature shows how an increase in volatility reduces leverage. However, in order to explain pro …-cyclical leverage it assumes that bad news increases volatility, that is, it assumes an inverse relationship between first and second … volatility. We show that, in a model with endogenous leverage and heterogeneous beliefs, agents have the incentive to invest …

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 …

structure determines aggregate volatility. We show that the maximal aggregate volatility is attained in a noise free information … the common component, as in Lucas (1972). The upper bound on aggregate volatility is linearly increasing in the variance …

A recent literature shows how an increase in volatility reduces leverage. However, in order to explain pro …-cyclical leverage it assumes that bad news increases volatility, that is, it assumes an inverse relationship between first and second … volatility. We show that, in a model with endogenous leverage and heterogeneous beliefs, agents have the incentive to invest …

asset to the riskless rate of interest. Finally, our Binomial Leverage-Volatility theorem provides a precise link between … leverage and volatility. …

, and how it depends on volatility. We describe the dynamic feedback properties of leverage, volatility, and asset prices … cycle in which asset prices display clustered volatility and fat tails even though all the shocks are essentially Gaussian. …

volatility for a given distribution of the payoff states. We show that the maximal aggregate volatility is attained in a noise …

private information influences aggregate volatility. The maximal aggregate volatility is attained in a noise free information …, as in Lucas [14]. For any given variance of aggregate shocks, the upper bound on aggregate volatility is linearly …