how one country’s (such as USA, EU, China) tax policies (of any kind) affect macroeconomic variables such as employment, inflation, growth rates, trade, etc. of “other countries” (such as developing or less developed countries)’

Topic: how one country’s (such as USA, EU, China) tax policies (of any kind) affect “macroeconomic variables such as employment, inflation, growth rates, trade, etc. of OTHER COUNTRIES” (such as developing or less developed countries)”