Bond prices change from day to day and over time can change dramatically. Why do some bonds sell at a premium over par value and others sell at a

Bond prices change from day to day and over time can change dramatically.

Why do some bonds sell at a premium over par value and others sell at a discount to par value?

Make a list of the most significant things that might affect bond value. Which of the items on the list are most important (rank them) and explain why?