- Government expenditure policy, a key component of fiscal policy, needs to be flexible and adaptable to changing economic conditions. - In times of economic slowdown or recession, the government needs to increase expenditure (expansionary policy) to stimulate demand. - In times of economic boom or high inflation, the government may need to decrease expenditure (contractionary policy) to cool down the economy. - Elasticity or flexibility allows the government to adjust its spending levels and priorities in response to these varying needs, making the policy effective in achieving macroeconomic stability and growth objectives. - Rigid or constant expenditure would imply an inability to respond effectively to the dynamic nature of the economy.