Where Liberals/Keynesians Go Wrong! Correlation does not mean causation!

Economics is really the study of human action and one thing that we do know is that individuals act!  We don't know why they act but we know they act as a means to pursue an end!  Liberals/Keynesian really go off the rails when they use studies and models to justify government action because of confusing correlation with causation! Economics is not a hard science and human behavior can't be modeled like Keynesian economists like to think!