Lenny D. answered 04/09/19
Global Macroeconomic Expert
Think of the production possibilties frontier. It is concave with respect to the origin. Draw one with Government goods on the X-axis and other goods on the Y-axis. Choose a point in the middle and lable it "a." Call that the optimal point. If you move down the PPF to some point b. Government good production increases at the expense of other goods. That is resources need to be taken way from the production of other goods to expand the production of government goods.