One of the most common trade barriers is a tariff. Tariff is a tax imposed by the government on imported goods and services. Imposing tariffs on imported goods and services raise their prices.
Imposing tariff on imported goods can either be done to raise government revenue or to protect indigenous companies.
In order to bring a lawsuit, you must be able to show how you are connected to/harmed by the person or company you are suing. This is known as standing.
Households receive income from firms. They also receive money from the government (transfers) and must pay money to the government (taxes). Households spend some of their disposable income and save the rest.