TY - JOUR AU - King,Mervyn A. AU - Wadhwani,Sushil TI - Transmission of Volatility Between Stock Markets JF - National Bureau of Economic Research Working Paper Series VL - No. 2910 PY - 1989 Y2 - March 1989 UR - http://www.nber.org/papers/w2910 L1 - http://www.nber.org/papers/w2910.pdf N1 - Author contact info: Mervyn A. King Governor Bank of England Threadneedle Street London EC2R 8AH UNITED KINGDOM Tel: 44-20-7601-4963 Fax: 44-20-7601-4953 E-Mail: mervyn.king@bankofengland.co.uk Sushil Wadhwani E-Mail: sushilw@waniasset.com AB - This paper investigates why, in October 1987, almost all stock markets fell together despite widely differing economic circumstances. The idea is that "contagion" between markets occurs as the result of attempts by rational agents to infer information from price changes in other markets. This provides a channel through which a "mistake" in one market can be transmitted to other markets. Hourly stock price data from New York, Tokyo and London during an eight month period around the crash offer support for the contagion model. In addition, the magnitude of the contagion coefficients are found to increase with volatility. ER -