For a stock to be in equilibrium, what two conditions must hold? If a stock is not in equilibrium, explain how financial markets adjust to bring it into equilibrium.

For a stock to be in equilibrium, what two conditions must hold?
If a stock is not in equilibrium, explain how financial markets adjust
to bring it into equilibrium.

What are the key benefits of adding foreign stocks to a portfolio?
When a U.S. investor purchases foreign stocks, what two things is
he or she hoping will happen?