全球关税：起源、演进历程及对财政的贡献

Tax Origin and Characteristics - Tariffs originated as a form of transit tax, primarily for controlling the movement of goods and maintaining border security[2] - Historically, tariffs were not significant in fiscal systems until the rise of international trade in the 16th century[2] Evolution of Tariff Functions - The function of tariffs has evolved from revenue collection to industry protection and economic regulation, influenced by economic development and prevailing economic ideologies[3] - Five distinct phases of tariff evolution are identified, with the latest phase (2018-present) marked by a resurgence of protectionism under the Trump administration[4][24] Global Economic Dependence on Tariffs - Countries are categorized based on their reliance on tariff revenue: low dependence (below 3%), medium dependence (3%-5%), and high dependence (above 5%)[5][25] - Developed economies like the US, Japan, and the UK have low tariff revenue reliance, with figures such as 1.2% for the US and 0.5% for Japan in 2022[5][28] Medium Dependence Economies - Countries like India and Vietnam show medium dependence on tariffs, with tariff revenue constituting 4.1% and 3.1% of national fiscal income respectively in 2022[6][31] High Dependence Economies - The Philippines exemplifies high dependence on tariffs, with 18.1% of its national fiscal income derived from tariffs in 2022, significantly higher than other nations[6][33] Risks and Considerations - Potential risks include unexpected changes in global trade policies and shifts in international economic and political landscapes[7]