Market Structures and Market Failure

TL;DR

Understanding market structures helps you see how competition, or a lack thereof, shapes prices and availability. When markets don't operate efficiently, it's called market failure, often leading to undesirable economic outcomes. Identifying market failures is crucial for designing policies that improve overall well-being.

1. The Mental Model

Think of market structures as different kinds of arenas where buyers and sellers meet. Each arena has its own rules about how many players exist and how they compete. Sometimes these arenas