The basic difference in the economic effects of a tariff compared with a quota is that tariff is more likely to generate revenue for the government. Both of tariff and quota are forms of governmental regulation for protecting the international trade with other countries. Tariff is undertaken by government to protect the international trade by maintaining the tax rate of the trade. Quota is undertaken by government by maintaining the quantity of the items in the trade. These regulations impact importers or exporters in a country.