Assertion: stock option's impact | /r/HasProperty | derived using the black-scholes model
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text: The Impact of Different Option Plans on Compensation Option values are derived using the Black-Scholes model and reflect the characteristics of a typical but hypothetical Fortune 500 company; the annual standard deviation of the stock price is assumed to be 32%, the risk-free rate of return is 6%, the dividend rate is 3%, and the maturity period is ten years.