Walmart is indicative of a city desperate for a quick source of tax revenue. It's a lot easier to tax one Walmart than 10 different mom and pops. The consumers will feel richer but the profits will go to outsiders rather than the mom and pops. Yes Walmart is more efficient but then so is a concentration camp.
The solution is for E2e1el to help create an alternative monetary system for his city to keep wealth circulating locally. The easiest would be a debit card backed by gold and silver. If this card were available only to locals it would fix the economy and make Walmart a laughable proposition.
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