This seems counterproductive for a mustachian because:
(a) we don't buy many consumer products that comprise a huge part of the economy such as luxury SUVs, McMansions, cable, fast food, soda, boats, name-brand toilet paper, tobacco, lawncare, etc. Not to mention business or government services, IT infrastructure....etc.
(b) We tend to buy low-margin things like fruits and veggies, tools, bikes, no-brand clothing, and energy. However, the economy probably has a higher % of high-margin transactions, such as Starbucks lattes, fashion/decor, and $3 cell phone games.
c) investments in who we buy from are not really hedges for what we spend. The hospital chain, insurance company, brokerage, utility, etc. do not care if you are a stockholder - the price is the same. Your shares in Anthem do not affect your health insurance premiums. More to the point, their shares don't necessarily go up if the price increases. Healthcare prices, for example, are driven by rising costs, not so much rising premiums.