How does the tenth amendment benefit you today?
you will have the right to a jury trial if accused of a crime.
it allows state governments to provide free education.
you have the right to ignore parent and teacher rules.
it allows state governments to ignore citizen rights.

when a country suffers, for example, a drought period, the market product is affected for a low offer, in this case, potatoes; the government has to tax to the households, which have to give more money for the potatoes which they consume, that situation make them consume substitute goods even through loans, it could increase the financial market movement and the inflationary phenomena, the business has to increase salaries in order to the employees could buy a more expensive food (potatoes) and in order to inflation tha business had to buy expensive supplies in the factor market, while the rest of the world have to gain more money to consume the same amount of potatoes.

it refers to race, i am pretty sure this was a popular term in nazi germany or something.