@inbook{NBERc4436,
 Crossref = "NBERmcca82-1",
 title = "Multiperiod Securities and the Efficient Allocation of Risk: A Comment on the Black-Scholes Option Pricing Model",
 author = "David M. Kreps",
 BookTitle = "The Economics of Information and Uncertainty",
 Publisher = "University of Chicago Press",
 pages = "203-232",
 year = "1982",
 URL = "http://www.nber.org/chapters/c4436",
}
@book{NBERmcca82-1,
 title = "The Economics of Information and Uncertainty",
 author = "John McCall",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "University of Chicago Press",
 year = "1982",
 URL = "http://www.nber.org/books/mcca82-1",
}