Potable water is in short supply in many countries. To address this need, two mutually exclusive water purification systems are being considered for implementation in China. Doing nothing is not an option. Assume the repeatability of cash flows for alternative 1. a. Use the PW method to determine which system should be selected when MARRequals7% per year. b. Which system should be selected when MARRequals12% per year?

Suppose either computers or televisions can be assembled with the following labor inputs: units produced 1 2 3 4 5 6 7 8 9 10 total labor used 3 7 12 18 25 33 42 54 70 90 (a) draw the production possibilities curve for an economy with 54 units of labor. label it p54. (b) what is the opportunity cost of the eighth computer? (c) suppose immigration brings in 36 more workers. redraw the production possibilities curve to reflect this added labor. label the new curve p90.

Amy is buying a new blouse for a party. what kind of good is the blouse?

Sri lanka is one of the major tea producing nations in the world. a substantial portion of the country's annual tea production gets exported to various countries, including the united arab emirates, russia, and other countries in the middle east. given the success in these countries, sri lanka decided to foray into the asian market. research evidence indicated that people in myanmar are major consumers of tea and that there is a high demand for tea in that country. this convinced industry experts in sri lanka that exporting to myanmar was a good idea. even though sri lankan tea was priced competitively, sales in myanmar turned out to be far lower than expected. which of the following, if true, could explain this outcome? a. myanmar exported a substantial amount of its annual tea production that year. b. the tea exported from sri lanka is of the highest quality. c. the myanmar government hiked the minimum wage for labor. d. people in myanmar are willing to pay more for their domestic tea brands than for foreign brands. e. sri lankan tea exports to other asian countries like india and china have also not been very successful.