.Determine whether the following statements are TRUE or FALSE. Briefly explain your answer.

(a) A cryptocurrency, e.g. Bitcoin, is a productive asset.

(b) The rate of returns of a bond is always the same as the yield to maturity of the bond.

(c) The nominal interest rate is always higher than the real interest rate.

(d) If the actual inflation rate is unexpectedly high, the realized real interest rate can be negative.