Carson Company currently has a mortgage on its office building through a savings institution. It is attempting to determine whether it should convert its mortgage from a floating rate to a fixed rate. Recall that the yield curve is currently upward sloping. Also recall that Carson is concerned about a possible slowing of the economy because of potential Fed actions to reduce inflation. The fixed rate that it would pay if it refinances is higher than the prevailing short-term rate but lower than the rate it would pay from issuing bonds. What macroeconomic factors could affect interest rates and therefore affect the mortgage refinancing decision? Which type of mortgage risk is the most difficult to overcome, in your opinion? Why?