Almost everyone follows this principle if they are collaborating on some common project.10 If someone fixing a broken water pipe says, “Hand me the wrench,” his co-worker will not, generally speaking, say, “And what do I get for it?”—even if they are working for Exxon-Mobil, Burger King, or Goldman Sachs. The reason is simple efficiency (ironically enough, considering the conventional wisdom that “communism just doesn’t work”): if you really care about getting something done, the most efficient way to go about it is obviously to allocate tasks by ability and give people whatever they need to
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