Why is there an almost universal dogma that govern-ments can play significantly positive roles in economic activity, that they can fine-tune economic activity and prevent excesses and cushion downturns? It's a colossal conceit, and one that does immeasurable harm. Economies are not like engines that can be mechanically manipulated to run better. To hear all the chatter about tax rebates, for example, you'd think they were the equivalent of recharging your car's dead battery.
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