Answer:
Trade protectionism
Explanation:
I believe this is the answer, but could be wrong.
Trade protectionism is a policy that protects domestic industries from unfair competition from foreign ones. The four primary tools are tariffs, subsidies, quotas, and currency manipulation.
Protectionism is a politically motivated defensive measure. In the short run, it works. But it is very destructive in the long term. It makes the country and its industries less competitive in international trade.