In which of the following cases is the assumption most reasonable? a. To address the benefits of trade, an economist assumes that there are two people and two goods. b. To estimate the speed at which a beach ball falls, a physicist assumes that it falls in a vacuum. c. To address the impact of taxes on income distribution, an economist assumes that everyone earns the same income. d. To address the impact of money growth on inflation, an economist assumes that money is strictly coins.

Maldonia has a comparative advantage in the production of , while lamponia has a comparative advantage in the production of . suppose that maldonia and lamponia specialize in the production of the goods in which each has a comparative advantage. after specialization, the two countries can produce a total of million pounds of lemons and million pounds of coffee.

Accublade castings inc. casts blades for turbine engines. within the casting department, alloy is first melted in a crucible, then poured into molds to produce the castings. on may 1, there were 230 pounds of alloy in process, which were 60% complete as to conversion. the work in process balance for these 230 pounds was $32,844, determined as follows: exercises during may, the casting department was charged $350,000 for 2,500 pounds of alloy and $19,840 for direct labor. factory overhead is applied to the department at a rate of 150% of direct labor. the department transferred out 2,530 pounds of finished castings to the machining department. the may 31 inventory in process was 44% complete as to conversion. prepare the following may journal entries for the casting department: the materials charged to production the conversion costs charged to production the completed production transferred to the machining department determine the work in process"casting department may 31 balance.

Parks corporation is considering an investment proposal in which a working capital investment of $10,000 would be required. the investment would provide cash inflows of $2,000 per year for six years. the working capital would be released for use elsewhere when the project is completed. if the company's discount rate is 10%, the investment's net present value is closest to (ignore income taxes) ?