Human and institutional behaviour can be modeled as if they think or analyze

Human and institutional behaviour can be modeled as if they think or analyze at the “margin”, or as if they use “Marginal Analysis”.

a) Identify an event that you have observed in the news, history, or your life that might be explained with Marginal Analysis

Your answer needs to provide at least two paragraphs.
The first paragraph discusses your observation.
The second paragraph explains how you use Marginal Analysis.
Please make sure to list the benefits and costs.

Answer all the questions in well developed paragraphs. The paragraphs should be at least five or six sentences long, and they should clearly include a topic sentence.