Final answer:
Policy makers influence trade through import/export taxes and tariffs, international trade agreements, currency exchange rates, and subsidies for domestic industries.
Step-by-step explanation:
Policy makers affect trade in several ways:
- By setting import/export taxes and tariffs, which can raise the cost of foreign goods and protect domestic industries.
- By regulating international trade agreements, which can either increase trade by reducing barriers or restrict it by implementing protective measures for domestic industries.
- By influencing currency exchange rates, which can make exports cheaper or imports more expensive, thus affecting trade balances.
- By promoting domestic industries through subsidies, which can lower the production costs for these industries and make them more competitive internationally.