An executive in a computer software firm works with his office door closed. at the same time every hour heopens the door to see what his employees are doing. the employees have learned to work especially hard duringthe five minutes before and while the door is open. their work pattern is typical of responses that are reinforcedon a schedule.
a. fixed-interval
b. fixed-ratio
c. variable-ratio
d. variable-interval

What does the phrase limited liability mean in a corporate context?

Diversified semiconductors sells perishable electronic components. some must be shipped and stored in reusable protective containers. customers pay a deposit for each container received. the deposit is equal to the container’s cost. they receive a refund when the container is returned. during 2018, deposits collected on containers shipped were $856,000. deposits are forfeited if containers are not returned within 18 months. containers held by customers at january 1, 2018, represented deposits of $587,000. in 2018, $811,000 was refunded and deposits forfeited were $41,000. required: 1. prepare the appropriate journal entries for the deposits received and returned during 2018. 2. determine the liability for refundable deposits to be reported on the december 31, 2018, balance sheet.

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.]