What is federalism? taking the issue of a minimum drinking age 21 should this area be regulated by the federal government the state government or both

Federalism is a political system where two or more governments have authority and control over the same area.

Explanation: It has been a topic of debate since US gained its independence whether federal government should have more power in order to make the country’s laws universal or the States should be allowed more power so that they can experiment with different policies, which may be useful for both the federal government and the state government

In some states the legal age of drinking is 18, whereas in other areas it is 21. Therefore, it is believed that unless there are no different policies for each states, how will they know which policy works the best. If a single policy is prevalent in all the states then there is no chance of comparison.

very positive impact on our industries in the west, sine they promoted settlement and increased the ways in which goods could be transported to market.  

less available tax revenue

this basically means that when they get money from taxes wirth having a lower gdp they get less then what others have with a higher gdp