Suppose Boeing and Airbus are both considering expanding their plant capacity as a strategic move but can’t observe their opponent’s move until their own move has been determined. The following are time-discounted values of all future profit streams in billions of dollars. Which of the following strategies are Nash equilibria? Airbus
Expand Don't
Boeing Expand 0.10, 0,10 1.60, 1.80
Don't 0.40, 1.70 1.20, 1.20

a. (Expand, Expand)
b. (Expand, Don 't)
c. (Don 't, Expand)
d. (Don 't, Don 't)
e. (b) and (c)
f. None are Nash equilibria.

Suppose a firm faces a fixed price of output, 푝푝= 1200. the firm hires workers from a union at a daily wage, 푤푤, to produce output according to the production function 푞푞= 2퐸퐸12. there are 225 workers in the union. any union worker who does not work for this firm is guaranteed to find nonunion employment at a wage of $96 per day. a.what is the firm’s labor demand function? b.if the firm is allowed to choose 푤푤, but then the union decides how many workers to provide (up to 225) at that wage, what wage will the firm set? how many workers will the union provide? what is the firm’s output and profit? what is the total income of the 225 union workers? c.now suppose that the union sets the wage, but the firm decides how many workers to hire at that wage (up to 225). what wage will the union set to maximize the total income of all 225 workers? how many workers will the firm hire? what is the firm’s output and profit? what is the total income of the 225 union workers? [hint: to maximize total income of union, take the first order condition with respect to w and set equal to 0.]

Reliability and validity reliability and validity are two important considerations that must be made with any type of data collection. reliability refers to the ability to consistently produce a given result. in the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways. unfortunately, being consistent in measurement does not necessarily mean that you have measured something correctly. to illustrate this concept, consider a kitchen scale that would be used to measure the weight of cereal that you eat in the morning. if the scale is not properly calibrated, it may consistently under- or overestimate the amount of cereal that’s being measured. while the scale is highly reliable in producing consistent results (e.g., the same amount of cereal poured onto the scale produces the same reading each time), those results are incorrect. this is where validity comes into play. validity refers to the extent to which a given instrument or tool accurately measures what it’s supposed to measure. while any valid measure is by necessity reliable, the reverse is not necessarily true. researchers strive to use instruments that are both highly reliable and valid.

Frugala is when sylvestor puts $2,000 into 10-year state bonds and $3,000 into 5-year aaa-rated bonds in steady hand hardware, inc. he buys the four state bonds at a 5 percent interest rate and the three steady hand bonds at a 6.5 percent rate. sylvestor also buys $1,500 worth of blue chip stocks, and $800 worth of stock in a promising new sportswear company that reinvests its earnings in new growth. 1. (a) what is the maturity for each of the bond groups sylvestor buys? (b) the coupon rate? (c) the par value?