If the spot rate term sturcture is flat, what is true of the discount function(ie the set of discount factors) as function of maturity?
A. Flat
B. Increasing with maturity
C. Decresing with maturity
D. Insufficient information: we need the yield(YTM) to answer
Discount factor ~ 1/(1+sโ)แต where T is time to maturity, sโ - spot rate, hence it is always decreasing function for almost any shape of the spot curve
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