Supply and demand chart showing that Google's oligopoly on advertising reduces the quantity of advertising available from different firms causing advertising prices to rise.

Oligopolies and Monopolies

The Trump Administration is following the playbook of Reaganomics. As part of its Reaganomics program, the Reagan Administration cut back sharply on the regulation of everything from monopoly and oligopoly
Chart showing supply and demand lines crossing.

Macroeconomics of the OPEC Cartel

All the recent talk of an OPEC deal to push up the price of oil is nonsense. Here is a hypothetical supply and demand chart of oil. In this hypothetical