“With few exceptions—e.g., the laborer who spurns a higher money price for his labor because of the nonexchangeable conditions attached to the work, or the investor who spurns a greater prospective income for a line of production that he prefers for its own sake—aside, pursuit of the rule: “Buy on the cheapest market and sell on the dearest” leads to satisfaction of the most highly valued ends for each individual, both as a consumer and as a producer.” – Murray Rothbard

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