Actual and Warranted Relations Between Asset Prices
Efficient markets models assert that the price of each asset is equal to the optimal forecast of its ex-post or fundamental value. These models do not imply, however, that the covariance between two asset prices is given by the covariance between the ex-post values they respectively forecast: these two covariances can even have opposite signs. However, it is possible to place bounds on the covariance between asset prices given the covariance matrix of ex-post values. We present such bounds for both covariances and correlations and show how such bounds can be tightened using information beyond the covariance matrix of ex-post values. The methods are used to examine whether the historical correlation between the U.S. and U.K. stock markets 1919-1989 is warranted. The bounds on the warranted covariance are very wide and include the actual correlation.
|Date of creation:||Feb 1991|
|Publication status:||Published in Oxford Economic Papers (1993), 45: 387-402|
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- King, Mervyn A & Wadhwani, Sushil, 1990. "Transmission of Volatility between Stock Markets," Review of Financial Studies, Society for Financial Studies, vol. 3(1), pages 5-33.
- Shiller, Robert J. & Beltratti, Andrea E., 1992.
"Stock prices and bond yields : Can their comovements be explained in terms of present value models?,"
Journal of Monetary Economics,
Elsevier, vol. 30(1), pages 25-46, October.
- Robert J. Shiller & Andrea E. Beltratti, 1990. "Stock Prices and Bond Yields: Can Their Comovements Be Explained in Terms of Present Value Models?," NBER Working Papers 3464, National Bureau of Economic Research, Inc.
- Robert J. Shiller & Andrea E. Beltratti, 1990. "Stock Prices and Bond Yields: Can Their Co-Movements Be Explained in Terms of Present Value Models?," Cowles Foundation Discussion Papers 953, Cowles Foundation for Research in Economics, Yale University.
- Robert J. Shiller, 1989.
"Comovements in Stock Prices and Comovements in Dividends,"
Journal of Finance,
American Finance Association, vol. 44(3), pages 719-730, July.
- Shiller, Robert J, 1989. " Comovements in Stock Prices and Comovements in Dividends," Journal of Finance, American Finance Association, vol. 44(3), pages 719-729, July.
- Robert J. Shiller, 1989. "Comovements in Stock Prices and Comovements in Dividends," NBER Working Papers 2846, National Bureau of Economic Research, Inc.
- Robert S. Pindyck & Julio J. Rotemberg, 1990. "Do Stock Prices Move Together Too Much?," NBER Working Papers 3324, National Bureau of Economic Research, Inc.
- King, Mervyn & Sentana, Enrique & Wadhwani, Sushil, 1994. "Volatility and Links between National Stock Markets," Econometrica, Econometric Society, vol. 62(4), pages 901-933, July.
- Mervyn King & Enrique Sentana & Sushil Wadhwani, 1990. "Volatiltiy and Links Between National Stock Markets," NBER Working Papers 3357, National Bureau of Economic Research, Inc.
- Pindyck, Robert S & Rotemberg, Julio J, 1990. "The Excess Co-movement of Commodity Prices," Economic Journal, Royal Economic Society, vol. 100(403), pages 1173-1189, December.
- Pindyck, Robert S. & Rotemberg, Julio., 1987. "The excess co-movement of commodity prices," Working papers 1969-87., Massachusetts Institute of Technology (MIT), Sloan School of Management.
- Robert S. Pindyck & Julio J. Rotemberg, 1988. "The Excess Co-Movement of Commodity Prices," NBER Working Papers 2671, National Bureau of Economic Research, Inc.
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