[Bartweiss]

> applies to few real life markets

It applies to almost all real-life markets. It's so standard that we don't even notice it happening, and focus on the exceptions. There is no level of economics you can reach where "competition drives down prices" stops being taken seriously; Nobel-winning left-wing economists like Stiglitz and Krugman accept that as true and relevant. So does Marx(!), who focuses on how lower costs are achieved at the expense of workers rather than capital holders.

Restaurants run at effectively zero margin. Lawn chairs and pencils and window blinds sell for essentially the cost of manufacturing and distribution. Even complex services like VOIP calling have moved from high profitable industries to "essentially free". Markets aren't inherently noble any more than they're inherently evil, but a major part of their value is that price-fixing hardly ever works.

Without appreciating that, we lose sight of just how strange healthcare (and college, and housing) are. When prices stay far above costs despite what presents itself as competition, there's something significant happening that deserves more attention.

[ptah]

In almost all markets competition produces pressure towards consolidation and monopolization. You need strong regulation to keep things competitive