The formula for the effective tariff rate is , where is the effective rate of protection, is the nominal tariff rate on the final product, is the ratio of the value of the imported input to the value of the final product, and is the nominal tariff rate on the imported input. Suppose the tariff rate on the final product is 5 percent. If no imported inputs are used in the domestic production of the final product, the effective tariff rate is:
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