Raising tax threshold incentivizes labor supply via supply-side measures

Steps:

• Identify the policy: Government raises the income threshold for paying tax, reducing effective tax on low earners.
• Link to goal: This makes work more financially rewarding, boosting labor participation and productivity.
• Classify as supply-side policy: Targets long-run aggregate supply by removing disincentives to work.
• Exclude monetary policy: No change in money supply or interest rates; focus is on tax structure.

Why A is correct:

• Supply-side policy definition includes tax adjustments to enhance work incentives, while monetary policy supports by stabilizing demand, forming a combined approach for economic encouragement.

Why the others are wrong:

• B: Includes fiscal policy, but the action is specifically supply-side, not broad spending/taxation changes.
• C: Monetary policy only involves central bank tools like interest rates, unrelated to tax thresholds.
• D: Omits supply-side element, focusing only on government spending/tax and money supply without incentive focus.

Final answer: A