Marginal analysis is contrasted in the text with choices that are:

1. Most real decisions adjust a quantity rather than adopting or abandoning something entirely. 2. Instead, most choices involve marginal analysis. 3. That means examining the benefits and costs of choosing a little more or a little less of a good. 4. Treating every choice as total acceptance or total rejection misdescribes how people decide. 5. Who makes the decision is a separate question from how it is framed. _Source: OpenStax Principles of Microeconomics for AP(R) Courses 2e (CC BY 4.0), Ch 2 'Choice in a World of Scarcity', sections 2.1-2.3_