 Market Risk and Volatility in the Brazilian Stock MarketJournal of Applied Economics, 2003, vol. 6, 385-403 Abstract: We estimate in this paper the market risk implied by the prices of different options traded in the Brazilian stock market. The fundamental theory to handle this problem is the one implied by the Arrow-Debreu contingent claim concept. Using that theory, we are able to construct the term structure of market risk, and to obtain a surface that provides slices for a particular “volatility smile.” The methodology that we use follows the one proposed by Shimko (1993), which is able to calculate a non-lognormal probability density function (PDF) consistent with the volatility observed in a relatively small sample of option prices. This methodology goes beyond the one proposed originally by Black and Scholes (1973), since it does not require log-normality of the PDF nor that volatility remains constant. Keywords: Arrow-Debreu contingent claim; options; Black-Scholes; market risk; volatility; Brazilian stock market : (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:cem:jaecon:v:6:y:2003:n:2:p:385-403 Access Statistics for this article Journal of Applied Economics is currently edited by Germán Coloma and Mariana Conte Grand and Jorge M. Streb More articles in Journal of Applied Economics from Universidad del CEMA Contact information at EDIRC. |
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