Across
- 7. dramatically changed the nature
- 8. curve, sometimes also called the frontier, to illustrate all possible combinations of output.
- 9. industries.
Down
- 1. began in the 1960s.
- 2. or alternative_____choices that are given up in favor of the choice we select.
- 3. to the “gifts of
- 4. the___value of the next best alternative given up.
- 5. or natural resources not created by people.
- 6. personal computer, cell phone, and music