Asymmetric Volatility Spillovers between Stock Market and Real Activity: Evidence from UK and US

By estimating bivariate EGARCH (2, 1) models, we find significant short run dynamic relations between stock market and real activity for the UK and the US over the period 1970-2002. There is evidence of significant reciprocal volatility spillovers between the two sectors within a country, implying stronger interdependencies in UK rather than in US. Volatility spillovers, transmitted via the balance sheet channel, are found to be asymmetric only in the case of UK. Namely, a negative shock in the stock market increases volatility in the real economy more than a positive shock.