2. Are there any true communist economies today? Which economies call themselves communist, and
what are they actually, if not communist?

net worth is the difference between what you own and what you have. if you exceed your liabilities you have a positive net worth. if your liabilities are greater than your assets you have a negative net worth. its a snapshot of your financial situation. if you calculate your net worth you will see the end result of everything you've earned and spent as of now. net worth statements and all you asked of can you determine where you are, how to get where you want to be, if your spending   to much. honestly it can tell you a lot of things. i can go on, but you can paint the picture from here.

explanation:

answer when little or no data is available;

answer (b); /// a method of measuring the opinions of a large group of people by selecting a subset of the larger group, asking them a set of questions and then generalizing those responses;