Scarcity is the fundamental starting point of all economics, and its most important implication is the notion that everything has an opportunity cost. In the capital market, the opportunity cost of capital is forgone consumption, and the opportunity cost of consumption is forgone capital investment. The interest rate is the price that regulates thi

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TAKING INTEREST There is one bit of advice given to us by the ancient heathen Greeks, and by the Jews in the Old Testament, and by the great Christian teachers of the Middle Ages, which the modern economic system has completely disobeyed. All these people told us not to lend money at interest; and lending money at interest—what we call investment—i

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