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Read through the most famous quotes by topic #scarce
And understand that scarce spectrum is used today for example for cell phone operators, they have to pay for the airwaves they use, for their services. ↗
In comparing therefore the value of the same commodity, at different periods of time, the consideration of the comparative skill and intensity of labour, required for that particular commodity, needs scarcely to be attended to, as it operates equally at both periods. ↗