d1 in Black-Scholes Model

Liming

New Member
Dear David,

Can you kindly help me with the following questions?

1) How can we interpret d1 in Black-Scholes Model and Merton model? According to Hull in his book, d1 is such that SoN(d1)exp(rT) equals to St when St > k, I don't quite catch what he means.

2) As to the main difference between Black-Scholes Model and Merton model, is it the fact that a dividend yield q and expected stock return is recognized in Merton model but not in Black-Scholes model?

Thank you very much!

Cheers!
Liming

02/11/2009
 
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