What determines the shape of the zero curve? Why is it sometimes downward sloping sometimes upward sloping and sometimes blogpartly upward sloping and sometimes partly downward sloping?

Lot of theories have been proposed but the simplest one is the expectation theory which conjectures that long-term interest rates should reflect the expected future short-term interest rates. More precisely, it argues that the forward interest rates corresponding to a certain future period is equal to the expected future zero interest rate for that period.  Continue reading

Advertisements