§ 5. Effects of discriminating Duties.
We have hitherto inquired into the effects of taxes on commodities, on the assumption that they are levied impartially on every mode in which the commodity can be produced or brought to market. Another class of considerations is opened, if we suppose that this impartiality is not maintained, and that the tax is imposed, not on the commodity, but on some particular mode of obtaining it.
Suppose that a commodity is capable of being made by two different processes—as a manufactured commodity may be produced either by hand or by steam-power—sugar may be made either from the sugar-cane or from beet-root, cattle fattened either on hay and green crops or on oil-cake and the refuse of breweries. It is the interest of the community that, of the two methods, producers should adopt that which produces the best article at the lowest price. This being also the interest of the producers, unless protected against competition, and shielded from the penalties of indolence, the process most advantageous to the community is that which, if not interfered with by Government, they ultimately find it to their advantage to adopt. Suppose, however, that a tax is laid on one of the processes, and no tax at all, or one of smaller amount, on the other. If the taxed process is the one which the producers would not have adopted, the measure is simply nugatory. But if the tax falls, as it is of course intended to do, upon the one which they would have adopted, it creates an artificial motive for preferring the untaxed process, though the inferior of the two. If, therefore, it has any effect at all, it causes the commodity to be produced of worse quality, or at a greater expense of labor; it causes so much of the labor of the community to be wasted, and the capital employed in supporting and remunerating [pg 571] that labor to be expended as uselessly as if