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Computational complexity and information asymmetry in financial products

Author(s): Arora, S; Barak, B; Brunnermeier, M; Ge, R

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Abstract: Traditional economics argues that financial derivatives, like CDOs and CDSs, ameliorate the negative costs imposed by asymmetric information. This is because securitization via derivatives allows the informed party to find buyers for less information-sensitive part of the cash flow stream of an asset (e.g., a mortgage) and retain the remainder. In this paper we show that this viewpoint may need to be revised once computational complexity is brought into the picture. Using methods from theoretical computer science this paper shows that derivatives can actually amplify the costs of asymmetric information instead of reducing them. Note that computational complexity is only a small departure from full rationality since even highly sophisticated investors are boundedly rational due to a lack of requisite computational resources.
Publication Date: 2011
Citation: Arora, S, Barak, B, Brunnermeier, M, Ge, R. (2011). Computational complexity and information asymmetry in financial products. Communications of the ACM, 54 (101 - 107. doi:10.1145/1941487.1941511
DOI: doi:10.1145/1941487.1941511
Type of Material: Journal Article
Journal/Proceeding Title: Communications of the ACM
Version: Author's manuscript



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