Answers to Questions in Checkpoints

Checkpoint: What Is Economics About?

(1) microeconomics, (2) macroeconomics, (3) microeconomics, (4) macroeconomics, (5) macroeconomics, (6) microeconomics, (7) macroeconomics.

Checkpoint: Key Principles of Economics

McDonald’s is adding one more product (premium coffee) to its line. Thinking at the margin entails thinking about how you can improve an operation (or increase profits) by adding to your existing product line or reducing costs.

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