As soon as you enter the work force, you must earn, save, and invest wisely the money you receive - or suffer the consequences if you don't. Making the right decisions will be easier once you understand how the economic really works. For instance, did you know that all material wealth comes from just three activities: farming, manufacturing, and harvesting whatever was not planted? Get the wisdom you need to save and keep more money and - if you're a government worker, politician or concerned citizen seeking to influence elected leaders - take steps to improve the national economy.