It is evident from the examination of these cases that the proponents of a tariff policy are well supported by Constitutional authority and logic depending on the time and necessity of the situation. Economically also there are many instances in which a reduction in or denial of tariff policy would be to the detriment of our country. The only point worth taking in summary of this complex problem is the fact that a mere permissive use of a tariff doesn't necessarily mean that the country's best interests are always served by a too rigid application of such measures. The reciprocal trade agreements of the last decade or so are proof of this.
Note, A Tariff Primer, 2 Clev.-Marshall L. Rev. 166 (1953)