When you trade one service for another it is called bartering.
There are several names for it, depending on where it's implemented. In the US, it's known as the draft. Generally, a mandatory military service requirement is known as conscription, and different governments may call it by various names (e.g., National Service).
Tornadoes are often called twisters.
The New Deal
A name is for someone to call you something. Would you want someone to call you something or say,"Hey........um.....you person over there!"
Tough call - Chuck Norris and John Rambo never fought one another.
What do economists call elasticity?
Some may call this "drawing names."
mixed economies
Economists call the things that firms sell which cannot be touched or seen goods and services.
Economists call the things that firms sell which cannot be touched or seen goods and services.
Economists call the things that firms sell which cannot be touched or seen goods and services.
Cheese
the business cycle
Goods
Economists call opportunity cost the next best alternative that has been given up. This is the cost of forgoing something and picking an alternative like using college fees to start a business.
market failer
Intangibles