According to the Keynesian model, if the economy had unemployment and the Fed wished to move the economy to full employment, which of the following combinations of policies should it pursue? increase the reserve requirement, decrease the discount rate, and sell government. securities Increase the reserve requirement, increase the discount rate, and sell government securities decrease the reserve requirement, decrease the discount rate, and sell government securities decrease the reserve requirement, decrease the discount rate, and buy government securities reduce government spending and increases taxes.