Asymmetry, realised volatility and stock return risk estimates

Stock Return Volatility and Capital Structure Decisions∗

We comprehensively examine the effects of stock return volatility on firms’ financial and investment decisions. Consistent with theories of investment with financing frictions, firms with high volatility actively reduce their leverage, cut investment, increase cash holding, cut non-cash current assets such as inventories and account receivables, and cut dividend. The effects of volatility are s...

Information Systems and Stock Return Volatility

Measuring Information Systems (IS) value has been constantly attracting much attention and debate within the IS research community. Since information systems effects are often difficult to quantify, traditional payoff evaluation methods often yield conflicting results. In this paper we suggest that some information systems can be evaluated on the basis of their effect on stock return volatility...

R&D, Patents and Stock Return Volatility

Investigating the Asymmetry in Volatility for the Iranian Stock Market

This paper investigates the asymmetry in volatility of returns for the Iranian stock market using the daily closing values of the Tehran exchange price index (TEPIX) covering the period from March 25, 2001 to July 25, 2012, with a total of 2743 observations. To this end, two sets of tests have been employed: the first set is based on the residuals derived from a symmetric GARCH (1,1) model. The...

Stock Return Volatility in Emerging Markets

This paper presents an empirical analysis of volatility and contagion across 19 emerging and developed stock markets in the 1990s. First, using an efficient estimate of unconditional stock return volatility we show that contemporaneous return and volatility correlation across stock markets have increased substantially in the 1990s. Second, using simple rolling regressions and goodness of fit me...