Question

Historically, the most important trade barriers have been tariffs and _______.

a. minimum wage laws.
c. taxes on exports.
b. quotas.
d. subsidies

Answer 1

Historically, the most important trade barriers have been tariffs and _______.

Quotas

Answer 2

The correct answer is b. quotas. This is the a limit of quantity of a product coming into a country that a goverment imposes in order to protect domestic producers. However, quota causes an important profit lost because the goverment does not earn a tax revenue, so it is less frequently used than the tariffs.