What is the quantity theory of money? Is the theory valid? Did monetary policy contribute to the economic crisis of 2008? Why or why not? How did monetary policy makers respond to this crisis? Has...

What is the quantity theory of money? Is the theory valid?

Did monetary policy contribute to the economic crisis of 2008? Why or why not? How did monetary policy makers respond to this crisis? Has their response created an environment for future stability and growth? Explain.