Explain why a yield curve can be negatively sloped. Would interest rates be abnormally high or low? What would be the overall expectation of the direction of future short- term interest rates? What is...

Explain why a yield curve can be negatively sloped. Would interest rates be abnormally high or low? What would be the overall expectation of the direction of future short- term interest rates?

What is the rationale behind the effi cient markets hypothesis?