With ABC stock selling for $49, a client sells one ABC 50 Nov call option in his cash account with your firm. One week later, ABC is now at $51 per share and his spouse sells two ABC 50 Nov calls in her account. In early November, ABC is selling for $62 per share and the spouse is assigned an exercise notice on one of the calls. The client calls and asks you, Why was the exercise notice assigned to my spouse and not me?

Suppose life expectancy in years (l) is a function of two inputs, health expenditures (h) and nutrition expenditures (n) in hundreds of dollars per year. the production function is upper l equals ch superscript 0.40 baseline upper n superscript 0.60l=ch0.40n0.60. beginning with c = 1, a health input of $400400 per year (hequals=44) and a nutrition input of $400400 per year (nequals=44), show that the marginal product of health expenditures and the marginal product of nutrition expenditures are both decreasing. the marginal product of health expenditures when h goes from 44 to 55 is nothing, and the marginal product of health when h goes from 66 to 77 is nothing. (round your answers to three decimal places.)