When Simple Semiconductors was operating at the minimum efficient scale of 10,000–12,000 units per month, the firm's cost per unit was $45. However, when the output level was increased beyond 12,000 units, the cost per unit increased to $47. This increase was attributed to the wear-and-tear of the machinery, and complexities of managing and coordinating. What is this phenomenon known as? a) minimum efficient scale
b) diseconomies of scale
c) experience curve effect
d) learning-curve effect

Acompany that makes shopping carts for supermarkets and other stores recently purchased some new equipment that reduces the labor content of the jobs needed to produce the shopping carts. prior to buying the new equipment, the company used 6 workers, who produced an average of 79 carts per hour. workers receive $16 per hour, and machine coast was $49 per hour. with the new equipment, it was possible to transfer one of the workers to another department, and equipment cost increased by $11 per hour while output increased by four carts per hour. a) compute the multifactor productivity (mfp) (labor plus equipment) under the prior to buying the new equipment. the mfp (carts/$) = (round to 4 decimal places). b) compute the productivity changes between the prior to and after buying the new equipment. the productivity growth = % (round to 2 decimal places)

Connors academy reported inventory in the 2017 year-end balance sheet, using the fifo method, as $154,000. in 2018, the company decided to change its inventory method to lifo. if the company had used the lifo method in 2017, the company estimates that ending inventory would have been in the range $130,000-$135,000. what adjustment would connors make for this change in inventory method?

Stocks a, b, and c are similar in some respects: each has an expected return of 10% and a standard deviation of 25%. stocks a and b have returns that are independent of one another; i.e., their correlation coefficient, r, equals zero. stocks a and c have returns that are negatively correlated with one another; i.e., r is less than 0. portfolio ab is a portfolio with half of its money invested in stock a and half in stock b. portfolio ac is a portfolio with half of its money invested in stock a and half invested in stock c. which of the following statements is correct? a. portfolio ab has a standard deviation that is greater than 25%.b. portfolio ac has an expected return that is less than 10%.c. portfolio ac has a standard deviation that is less than 25%.d. portfolio ab has a standard deviation that is equal to 25%.e. portfolio ac has an expected return that is greater than 25%.