Earlier quoted context omitted.
> If that was really true it would create a huge arbitrage opportunity for people to make billions of dollars by building their businesses out in cheaper areas. If the desirable employees, and the capitalists who want to actively oversee their investments weren't already in the more expensive areas, or if there weren't costs to both associated with regular travel or relocation (which taken together negates the short…
> If the desirable employees, and the capitalists who want to actively oversee their investments weren't already in the more expensive areas Most of those people were out in cheaper areas 40 years ago, when suburbia was still ascendant. So "they just happen to already be there" doesn't explain what we observe today. > or if there weren't costs to both associated with regular travel That is just restating why walkable…
Yes, they did; not so much in terms of density, but the suburbs that had substsntial local quality jobs rather than being bedroom communities for more distant urban areas (or other other suburbs) did become substantially more expensive (as is expected, because convenient location to work is something people value), and, conversely, when jobs have moved away (including in the return to cities) they've gotten less expensive.
There's also the fact that major cities tend to be located in places which are geographically conducive to physically supporting largee numbers of people and large volumes of material trade, and even if an industry doesn't itself need or produce lots of physical goods directly, it often supports or is supported by others that do, and, in any case, the ability to support people effects the economics of moving jobs.