Lower cost of living makes possible economic modes that the already relatively high economic floor in St. Louis makes prohibitive. Plus, the relative benefit of

Lower cost of living makes possible economic modes that the already relatively high economic floor in St. Louis makes prohibitive. Plus, the relative benefit of pouring X dollars into an area with lower per capita gdp is much higher: going from 20 cents to $2.20 a day is a much bigger life change than from $10 to $12. Still could be helpful, and I think we do see it often in some form or another, but is also subject to regulatory arbitrage: two cities pitted against each other to provide the best situation for companies, or Walmart flexing their power to get more favorable deals.