The capitalists—in supplying present goods for future goods—are constrained by the aggregated time-preference schedules just as sellers of any other present goods are constrained by the aggregated demand schedules of the consumers. The capitalists are not exploiters but intermediaries, bridging present and future demand with money—because, by definition, money is the best technology for this function.revisit

“In the aggregate, the interaction of the time preferences and hence the supply-demand schedules of individuals on the time market determine the pure rate of interest on the market.”

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