Template-Type: ReDIF-Paper 1.0 Author-Name: Chen, J. Author-Name-Last: Chen Author-Name-First: Jinghui Author-Name: Kobayashi, M. Author-Name-Last: Kobayashi Author-Name-First: Masahito Author-Name: McAleer, M.J. Author-Name-Last: McAleer Author-Name-First: Michael Author-Person: pmc90 Title: Testing for a Common Volatility Process and Information Spillovers in Bivariate Financial Time Series Models Abstract: The paper considers the problem as to whether financial returns have a common volatility process in the framework of stochastic volatility models that were suggested by Harvey et al. (1994). We propose a stochastic volatility version of the ARCH test proposed by Engle and Susmel (1993), who investigated whether international equity markets have a common volatility process. The paper also checks the hypothesis of frictionless cross-market hedging, which implies perfectly correlated volatility changes, as suggested by Fleming et al. (1998). The paper uses the technique of Chesher (1984) in differentiating an integral that contains a degenerate density function in deriving the Lagrange Multiplier test statistic. Length: 35 Creation-Date: 2016-02-29 File-URL: https://repub.eur.nl/pub/79925/EI2016-16.pdf File-Format: application/pdf Series: RePEc:ems:eureir Number: EI2016-16 Classification-JEL: C12, C58, G01, G11 Keywords: Volatility comovement, Cross-market hedging, Spillovers, Contagion Handle: RePEc:ems:eureir:79925