Political objective of the tax.. use tax for political purposes, as is the case in trade wars between developed countries

This means that the tax became directly linked schemes overall economic and social development, imposing tariffs on some countries products and reduced other products, is the use of tax for political purposes, as is the case in trade wars between developed countries (Japan, the United States of America, for example) are also used tax in the fight against certain social layer to layer land owners.
Also, some groups Kalmjahidin reduction or exemption from the tax is used to tax for political purposes.