Tariff structures refer to the way in which prices are set for services or goods, particularly in sectors like telecommunications, utilities, and international trade. These structures can include fixed rates, variable rates, or a combination of both, depending on usage levels or customer categories. Understanding tariff structures helps consumers and businesses make informed decisions about their consumption and costs. In international trade, tariffs are taxes imposed on imported goods, which can affect pricing and competitiveness. Different countries may have varying tariff structures based on trade agreements or economic policies. For example, the World Trade Organization plays a role in regulating these tariffs to promote fair trade practices among member nations.