Journal of Risk and Uncertainty Vol. 24, Issue 3, Pages 195-212 2002 ÌÇÐÄvlog¹ÙÍø Authors See citation below for complete author information. Richard Zeckhauser Frank Plumpton Ramsey Professor of Political Economy Citation Zeckhauser, Richard, and Christian Gollier. "Horizon Length and Portfolio Risk." Journal of Risk and Uncertainty 24.3 (2002): 195-212.