Khan Academy has a set of courses on macroeconomics. Wealth Plus


When the twin towers were built, they were excessive (in terms of the need for office space in the 70s). In the down turn, they were considered “pure speculation”. In The 80s though, demand caught up with supply and they were absolutely necessary to meet the growth. This does not mean that every excess of a growth period is necessary, but every excess during periods of ebullience is not waste(Lamade 2022).

Questions questions

What is the difference between micro and macro economics? What are the fundamental tenets of classic economic theory? What are the areas of economic knowledge/learning most applicable outside of this domain?

Aggregation Problem

The difficulty of representing many individual components. Tyler Cowen talks about a specific aggregation problem of a policy that harms one person but helps another, is this policy good or bad as a whole?(Cowen 2018)


Cowen, Tyler. 2018. Stubborn Attachments: A Vision for a Society of Free, Prosperous, and Responsible Individuals. San Francisco, CA: Stripe Press.
Lamade, Ted. 2022. “The End of Blitzscaling.”