Items that save you money by allowing you to pay a relatively low price for a good or service include . marginal benefits and marginal costs
coupons and comparative shopping
opportunity costs and trade-offs

The smoot-hawley act is the tariff act of 1930. it increased 900 import tariffs by an average of 40% to 48%. most economists blame it for worsening the great depression. it also contributed to the start of world war ii.

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