Learn With Elaine: Elephants and Avocados

The tragedy of the commons explains why avocados can be more important than elephants.

Learn With Elaine: Superhero Ownership

Even though it does not really exist, a Marvel superhero is intellectual property that a company like Disney can own.

Learn With Elaine: How Transparency Transformed Food Shopping

When the development of cellophane let us have self-service food shopping for meat and produce, it started a retailing revolution that economists call creative destruction.