Consider a European call and a European put with the same strike price and time to maturity. Show that they change in value by the same amount when the volatility increases from a level ₁ to a new level 2 within a short period of time. (Hint: Use put-call parity.)

International Financial Management
14th Edition
ISBN:9780357130698
Author:Madura
Publisher:Madura
Chapter5: Currency Derivatives
Section: Chapter Questions
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Consider a European call and a European put with the same strike price and time to
maturity. Show that they change in value by the same amount when the volatility
increases from a level ₁ to a new level 2 within a short period of time. (Hint: Use
put-call parity.)
Transcribed Image Text:Consider a European call and a European put with the same strike price and time to maturity. Show that they change in value by the same amount when the volatility increases from a level ₁ to a new level 2 within a short period of time. (Hint: Use put-call parity.)
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