A _________ value is named after the miner's bird used to detect poisonous air in a mine and warn miners in time for them to escape

Michael Porter suggested four basic competitive positioning strategies that companies can follow, three winning strategies and one losing one. Name and describe these four different strategies

What will be an ideal response?

Assume S = $56.00, ? = 0.45, r = 0.05, div = 0.0, on a $55 strike call and 45 days until expiration. Given delta = 0.6253, gamma = 0.0735, and theta = -0.0253, what is the approximate change in call price over 1 day, all else being the same?

A) $0.00 B) $0.01 C) $0.02 D) $0.03