Because perfectly competitive firms produce the level of output where the marginal social benefit of their output is in balance with the of their output they are allocatively efficient.

Seattle bank’s start-up division establishes new branch banks. each branch opens with three tellers. total teller cost per branch is $96,000 per year. the three tellers combined can process up to 90,000 customer transactions per year. if a branch does not attain a volume of at least 60,000 transactions during its first year of operations, it is closed. if the demand for services exceeds 90,000 transactions, an additional teller is hired and the branch is transferred from the start-up division to regular operations. required what is the relevant range of activity for new branch banks

Ursus, inc., is considering a project that would have a five-year life and would require a $1,650,000 investment in equipment. at the end of five years, the project would terminate and the equipment would have no salvage value. the project would provide net operating income each year as follows (ignore income taxes.):

Opportunity cost is calculated by which of the following? a. adding the value of all lost opportunities. b. subtracting all costs from the total benefit. c. calculating the cost of time, energy, and sacrifice. d. finding the value of the best option that is not chosen.