(A) Gross Domestic Product (GDP) is your answer.
The GDP takes all the profit a country earns through export, and subtracts it from the imports that the country takes in (To see if there is a profit). It is then divided by the amount of people that lives inside the country, so that they can find the GDP per capita (How much each person is given if all the money is split evenly.) For example, the GDP per capita for the US is almost $60,000.
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The demand for it is what makes it valuable
While Congress has the explicit authority under the Elections Clause to regulate the times, places, and manner of congressional elections, with respect to presidential elections, Article II, Section 1, Clause 4 simply provides that the “Congress may determine the Time of chusing the Electors, and the Day
Julius wanted to be the ruler of greece until he died but the council didn't want him for a ruler forever so they assassinated him in clear day and Pompeii was a Greece city that lived next to an active volcano,
