Consider two barter economies: duos and varietas. duos produces two different goods, whereas varietas produces 80 different goods. both countries have the same number of people. in which barter economy is it more likely that the means of payment and the units of account would be efficient? how many relative prices are there in duos compared with varietas? which economy would benefit more from adopting money?

What is the opportunity cost (in civilian output) of a defense buildup that raises military spending from 4.0 to 4.3 percent of an $18 trillion economy? instructions: enter your response rounded to the nearest whole number?

Six years ago, an 80-kw diesel electric set cost $160,000. the cost index for this class of equipment six years ago was 187 and is now 194. the cost-capacity factor is 0.6. the plant engineering staff is considering a 120-kw unit of the same general design to power a small isolated plant. assume we want to add a precompressor, which (when isolated and estimated separately) currently costs $13291. determine the total cost of the 120-kw unit. (hint: skip $ and comma symbols)

Xinhong company is considering replacing one of its manufacturing machines. the machine has a book value of $39,000 and a remaining useful life of 5 years, at which time its salvage value will be zero. it has a current market value of $49,000. variable manufacturing costs are $33,300 per year for this machine. information on two alternative replacement machines follows. alternative a alternative b cost $ 115,000 $ 117,000 variable manufacturing costs per year 22,900 10,100 1. calculate the total change in net income if alternative a and b is adopted. 2. should xinhong keep or replace its manufacturing machine