Microeconomics · 免费预览
比较优势的来源
气候、资源、技能、技术和规模都会造成比较优势背后的生产率差异，而这些因素变化时，这种格局也会不断变化。
1. Differences create the gains
Differences create the gains
2. Reading sources off a table
Reading sources off a table
3. Comparative advantage is not forever
Comparative advantage is not forever
4. Scale can manufacture a difference
Scale can manufacture a difference
5. Matching the source
A cold northern country with expensive engineering labor exports aluminum ingots, a hot coastal country with cheap land exports cut flowers, and a country with a century of aircraft-making exports jets. Which assignment of sources is correct?
6. When the source moves
The valley grows 8 tons of grapes or 4 tons of wheat per field, the plain grows 2 tons of grapes or 6 tons, and they trade grapes for wheat. A new irrigation system raises only the plain's wheat yield from 6 to 9 tons. What happens to the plains grape opportunity cost and the trade pattern?
7. The new opportunity cost
A highland farm produces 3 tons of coffee or 15 tons of maize per plot, and a riverside farm produces 5 tons of coffee or 10 tons of maize. Compute the highland farm's opportunity cost of one ton of coffee in tons of maize and write the number.
8. Which is not a source
Which of the following is NOT a genuine source of comparative advantage between countries?
9. Advantage that erodes
A country's textile exports boom for a decade and its wages rise sharply relative to its trading partners. What does the theory predict?
10. The valley's wheat cost
The valley grows 8 tons of grapes or 4 tons of wheat per field, while the plain grows 2 tons of grapes or 2 tons of wheat. Compute the valley's opportunity cost of one ton of wheat in tons of grapes, and write the number.