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Master's Dissertation
DOI
https://doi.org/10.11606/D.12.2000.tde-10052023-151351
Document
Author
Full name
Bernardo de Vasconcellos Guimarães
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2000
Supervisor
Committee
Silva, Marcos Eugenio da (President)
Bonomo, Marco Antonio Cesar
Santos, Jose Carlos de Souza
Title in Portuguese
A possibilidade de saltos discretos no câmbio implícita nos prémios das opções (jan/97 a jan/99)
Keywords in Portuguese
Câmbio (Economia)
Derivativos
Opções financeiras
Abstract in Portuguese
Nesta dissertação, são estimados os parâmetros - implícitos nos prémios das opções - de um modelo de precificação que considera a possibilidade de saltos discretos no câmbio (o modelo de Merton), no período entre janeiro/97 e janeiro/99. Os resultados obtidos são interpretados como probabilidades e magnitudes esperadas de uma desvalorização do Real. Então, argumenta-se em favor dessas estimativas como medidas de credibilidade no regime de bandas que vigorou de março/95 a janeiro/99. Além disso, apresentam-se evidências para se afirmar que o modelo mais utilizado pelo mercado para precificar derivativos no período mimetizava a possibilidade de saltos discretos. Por fim, busca-se mostrar que o modelo de Merton teria tido melhor desempenho que os métodos comumente usados enquanto ferramenta para traduzir informações em preços.
Title in English
The possibility of discrete jumps in the exchange rate implicit in option premiums (Jan/97 to Jan/99)
Keywords in English
Derivatives
Financial Options
Foreign Exchange (Economics)
Abstract in English
This dissertation estimates the parameters of a pricing model which considers the possibility of discrete jumps in the Brazilian exchange rate (Merton's model), from January 1997 to January 1999. The obtained results are seen as probabilities and expected magnitudes of the Real devaluation. Then, such estimates are defended as good measures of credibility of the exchange rate policy, that prevailed from March 1995 to January 1999. It is also shown that the widespread pricing model in the period simulates the possibility of discrete jumps. Finally, it is argued that Merton's model would have performed better than the commonly used pricing tool as a device to translate information into derivative prices.
 
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Publishing Date
2023-05-10
 
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