Supply Side Economics FAILED! Here is the data. It was just a bad idea.

The biggest political theory of the last 30 years is supply side economics. It was the basis of the policies of all Republican presidents from Ronald Reagan onward. The idea is that if the rich are given more money, they will use it to invest in business and thus create jobs. According to the theory, if you give money to the poor, they will just spend it. The rich, on the other hand, will help businesses to grow and this will help the poor.

The idea is nonsense as anyone who has ever run an actual business should be able to explain. Businesses expand when they see a lot of demand for their products.

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