Practice AP Microeconomics free-response questions with rubric-based scoring. The FRQ section is 33% of your AP Micro score and has the same structure as AP Macro: 1 long (10 pts) and 2 short (5 pts each).
What AP Micro FRQs Test
The long FRQ typically centers on one market structure: most commonly the perfectly competitive firm-and-industry two-panel diagram, or a monopoly graph. For each graph, rubric points are earned separately for: the demand/MR curves, the cost curves (MC, ATC, AVC), the profit-maximizing quantity (where MR=MC), the price (read off the demand curve above that quantity), and the profit or loss rectangle. Short FRQs often test elasticity, tax incidence, externalities, or factor markets.
The MR=MC Rule in FRQs
Every profit-maximizing quantity answer must reference the MR=MC rule explicitly — not just state a number. "The firm produces where MR = MC, which is Q = 3" earns full credit. "Q = 3" alone earns partial credit at best. For government policy questions, identify the socially optimal output (where MSC = MSB or P = MC) and calculate deadweight loss as the triangle between that quantity and the actual quantity produced.
AP Micro Practice Questions · AP Micro Study Guide · How to Get a 5 on AP Micro
What AP Economics FRQ graders reward
Econ free response is graph-driven: on most questions a correctly drawn, fully labeled graph is the answer. Graders reward correct axes and curve labels, showing shifts with directional arrows, and a written chain of reasoning from cause to effect (e.g., "rates fall → investment rises → AD shifts right → price level and real GDP rise"). Each link in that chain is often its own point.
The mistakes that cost the most points
- Unlabeled or partially labeled graphs — every axis and curve needs a label.
- Showing a shift without explaining the mechanism — the reasoning chain earns the points.
- Skipping a step in the cause→effect chain.
- Mixing up nominal vs real, or short-run vs long-run.
AimFive grades your free-response answers point-by-point on the official rubric with published accuracy data — write one and see exactly which points you earned. Start practicing free.
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