What is the difference between micro and macro economics? Please give an example of a microeconomic phenomenon and an example of a macroeconomic one.

2.Please explain a recent article that you find on internet that is relevant for this section. Provide the link, and a summary of the article and discuss, why you found the article interesting

3.Provide an example of a sunk cost. How does this differ from a marginal cost? And please explain a time you did (or should have) used marginal analysis to solve a problem.