The US advantage over the Soviets was probably because they practice communism in more practical way..., here are some hints...;
{( Taxation in the United States is a complex system which may involve payment to at least four different levels of government and many methods of taxation )...,...(United States taxation includes local government,possibly including one or more of municipal, township, district and country governments.It also includes regional entities such as school utility , and transit district as well as including state and federal government
)..,..( The National Bureau of Economic Research has concluded that the combined federal, state, and local government average marginal tax rate for most workers to be about 40% of income ) - " http://en.wikipedia.org/wiki/Taxation_in_the_United_States "...}, { ( Public Enterprise Centrally Planned Economy in which all property is owned by the State and all key economic decisions are made centrally by the State, e.g. the former Soviet Union. ) - http://en.wikipedia.org/wiki/Socialist_economics}