Assignment:
The first principle of economics discussed is that people face trade-offs. Use a production possibilities frontier to illustrate society's trade-off between two "goods" - a clean environment and the quantity of industrial output. What do you suppose determines the shape and position of the frontier? Explain what happens to the frontier if engineers develop a new way of producing electricity that emits fewer pollutants.
Answer the question above in 3 to 5 paragraphs.