Duration analysis is an alternative to gap analysis for measuring interest rate risk. The percentage change in the market value equals $($duration of the bond$)($percentage$-$point change in the interest rate$).$ Bankers compute the weighted$-$average duration of their liabilities and subtract it from the weighted$-$average duration of their assets to get a duration gap, which can be used to guide the bank$$s risk management strategy. The duration of an asset or liability measures how sensitive its market value is to a change in the interest rate: the more sensitive$,$ the longer the duration. The longer the term of a bond, the larger the price change for a given change in the interest rate.