Step 1: Identify Government Economic Roles. - Resource Allocation: Managing the distribution of resources between private and public sector goods. - Income/Wealth Distribution: Adjusting income and wealth levels via taxation and subsidies. - Economic Stabilization: Government actions to ensure price, output, and employment stability. - Fiscal Operations: The government's overall involvement in taxation and spending. Step 2: Connect to the Prompt. The prompt's reference to "expand or reduce demand" directly aligns with stabilization policies, which employ fiscal and monetary tools to manage aggregate demand. Final Answer: \[\boxed{\text{Stabilization Function}}\]