1. What is the invisible hand principle? Does it indicate that self-interested behavior within markets will result in actions that are beneficial to others? What conditions are necessary for the...

1. What is the invisible hand principle? Does it indicate that self-interested behavior within markets will result in actions that are beneficial to others? What conditions are necessary for the invisible hand to work well? Why are these conditions important?

2. What is the difference between substitutes and complements? Indicate two goods that are substitutes for each other. Indicate two goods that are complements.