Tables & Figures (jpam-tables-figures)
JPAM exhibits serve a mixed audience — economists, political scientists, public-management scholars, and
practitioners — so they must be self-contained and decision-legible: a policymaker should grasp the
main result, its uncertainty, and who it affects without reading the methods section. Lead with the
exhibit that shows the policy effect and its credibility, not a wall of coefficients.
When to trigger
- Designing the main results table/figure and the design-validity exhibits
- A reviewer found tables unreadable, or the key result hard to locate
- Presenting cost-benefit or distributional results visually
- Preparing exhibits for the (double-blind) submission
What the exhibit set should contain
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The headline effect, clearly. A main results table or a coefficient/effect figure in policy-
relevant units, with confidence intervals — not just significance stars.
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Design-validity exhibits. The evidence that the identification holds: an event-study /
pre-trends plot for DiD, an RD plot with binned means and the fitted discontinuity, a balance
table for an RCT, a synthetic-control fit plot. These often persuade reviewers more than the point
estimate.
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Heterogeneity / mechanism. A figure showing effects by the theory-driven subgroups.
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Cost-benefit / distributional. Where central, an exhibit that shows the benefit-cost result and
its sensitivity, or the distribution of gains and costs across groups.
Craft standards
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Self-contained captions: define the sample, the estimator, the units, the inference (what the
error bars/SEs are and the clustering), and the time window — readable without the text.
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Confidence intervals over stars in figures; report SEs and the clustering level in tables.
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Policy-relevant units on axes and in cells (dollars, percentage points, per-recipient).
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Accessible design: colorblind-safe palettes, legible in grayscale, vector output for print.
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Honest scaling: do not truncate axes to exaggerate an effect; show the zero line where relevant.
Execution bridge (StatsPAI / Stata MCP)
Generate exhibits from the fitted result, not by retyping numbers. Full map:
execution-with-mcp. JPAM is policy analysis — program evaluation is the core; DiD/IV/RDD and the policy-relevant magnitude are decisive.
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Tables:
etable (multi-model) or did_summary_to_latex straight from the result_id.
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Figures:
plot_from_result / enhanced_event_study_plot / event_study_table —
axis units and the SE/clustering note baked in.
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Every note names the estimator + clustering and states the magnitude in interpretable units.
See a full fitted-result → exhibit chain in the JF execution walkthrough.
Checklist
Anti-patterns
- A dense regression table with stars and no confidence intervals or units
- Hiding the parallel-trends / RD-validity evidence in an appendix the reviewer must hunt for
- Captions that require the methods section to interpret
- Truncated or rescaled axes that overstate the effect
- A cost-benefit conclusion in prose only, with no exhibit or sensitivity shown
- Exhibits whose numbers drift from the replication package
Calibration anchors (hedged)
- For a DiD or RD paper, the design-validity figure often does more persuasive work than the point
estimate — a clean pre-trends or RD plot pre-empts the cross-disciplinary referee's first objection.
- A mixed APPAM audience reads exhibits before prose; if the headline effect and its uncertainty are not
legible from the figure alone, the paper feels harder than it is.
- Confidence intervals communicate policy precision better than stars — a wide CI is itself information a
decision-maker needs.
Worked micro-example (illustrative)
For a staggered-adoption DiD, the strong exhibit set is: (1) an event-study figure with confidence
bands showing flat pre-trends and the post-policy effect; (2) a main table reporting the
heterogeneity-robust estimate in dollars with the clustering level named; (3) a subgroup figure for
the pre-specified populations; and (4) a benefit-cost panel with sensitivity bars. A reviewer can
verify the identification, read the magnitude, and see the policy bottom line without leaving the
figures. (Illustrative.)
Output format
【Headline exhibit】main effect + CI in policy units
【Design-validity exhibit】event-study / RD / balance / SC fit
【Heterogeneity / mechanism】subgroup figure
【Cost-benefit / distribution】exhibit + sensitivity (if central)
【Accessibility】colorblind-safe, grayscale, vector? [Y/N]
【Next】jpam-writing-style
Supplementary resources