Roland and Quan are both on the staff of a car dealership. Roland is always asking colleagues to cover his shifts, but he never returns the favor. Quan often covers shifts for colleagues even though he rarely takes time off himself. Which statement best describes the difference between Roland and Quan?
A. Quan adheres to the company ethics policy, and Roland does not.
B. Quan relies on corporate values, and Roland relies on personal values.
C. Quan is an effective communicator, and Roland is not.
D. Quan is a giver, and Roland is a taker.
E. Quan trusts his colleagues, and Roland does not.

What is the relationship between credit and debt?

Suppose that a major city’s main thoroughfare, which is also an interstate highway, will be completely closed to traffic for two years, from january 2014 to december 2015, for reconstruction at a cost of $535 million. if the construction company were to keep the highway open for traffic during construction, the highway reconstruction project would take much longer and be more expensive. suppose that construction would take four years if the highway were kept open, at a total cost of $800 million. the state department of transportation had to make its decision in 2014, one year before the start of construction (so that the first payment was one year away). so the department of transportation had the following choices: (i) close the highway during construction, at an annual cost of $267.5 million per year for two years. (ii) keep the highway open during construction, at an annual cost of $200 million per year for four years. now suppose the interest rate is 80%. calculate the present value of the costs incurred under each plan.

When the benefit of one particular use of a resource is greater than the opportunity cost, then that resource is which of the following? a. not scarce b. being used efficiently c. a normal good d. non-excludable