From anderson and dahlin, ch1 question 1: suppose a computer system and all of its applications are completely bug free. suppose further that everyone in the world is completely honest and trustworthy. in other words, we do not need to consider fault isolation.

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.

David consumes two things: gasoline (g) and bread (b). david's utility function is u(g, b) = 10g^0.25 b^0.75. use the lagrange technique to solve for david's optimal choices of gasoline and bread as a function of the price of gasoline, p_g, the price of bread, p_b, and his income m. with recent decrease in the price of gasoline (maybe due to external shock such as shale gas production) does david increase his consumption of gasoline? for david, how does partial differential g/partial differential p_g depend on his income m? that is, how does david's change in gasoline consumption due to an increase in the price of gasoline depend on his income level? to answer these questions, find the cross-partial derivative, |partial differential^2 g/partial differential m partial differential p_g.

Which of the following statements is (are) true? i. free entry to a perfectly competitive industry results in the industry's firms earning zero economic profit in the long run, except for the most efficient producers, who may earn economic rent. ii. in a perfectly competitive market, long-run equilibrium is characterized by lmc < p < latc. iii. if a competitive industry is in long-run equilibrium, a decrease in demand causes firms to earn negative profit because the market price will fall below average total cost.