The first two lessons cover the marginal perspective, which focuses on whether a company should produce the next unit of output. We examine the underlying issues in three related formats: tables of data, charts of that data, and formulas.
The relationship between marginal ("how profitable is the next unit?") and cumulative ("how much total profit have I made so far?") perspectives is critical.
The third lesson covers supply and demand, which we examine with charts and formulas.