Contribution Framing (jet-contribution-framing)
When to trigger
- Writing the abstract and introduction of a JET theory paper
- A desk editor must see the theoretical contribution within the first page
- You need to make sure the claim does not exceed the proof
What JET rewards
JET accepts a paper because it is a rigorous, original theoretical contribution. Framing must put
the theorem first and make its significance legible to the matching editor and two expert
referees. A JET introduction is not a story arc around data — it is a precise statement of what is now
known that was not before.
The framing template
- The question, theoretically posed. What property of mechanisms / equilibria / preferences /
markets is at stake?
- The result, stated as a theorem. One sentence the abstract can carry: "We characterize / prove
that / show existence of ...". Because abstract references must be written in full, cite at most
one or two anchor results there.
- Why it matters. Which prior result it weakens an assumption of, generalizes, or overturns — the
delta from jet-literature-positioning.
- What it does not claim. Name the scope (finite types, specific domain) so referees do not read
in a stronger claim than the proof supports.
- Subfield signal. State the area (mechanism design, decision theory, matching, …) so routing
reaches the right editor.
Right-sizing the claim
- Distinguish characterization vs. existence vs. comparative statics — claim only the one(s)
you proved.
- Avoid "general" / "robust" / "essentially" unless the theorem literally says so.
- If a result holds only under an extra condition, say it in the abstract, not a footnote.
Referee-proof contribution sentence
Before finalizing, rewrite the main contribution in this syntax:
Under [assumptions], we prove [result type] for [environment], which [weakens/generalizes/constructs]
[closest theorem] by [precise delta].
Every bracket should map to a theorem statement or a cited frontier result. If a bracket is rhetorical
rather than formal, the framing is ahead of the proof.
Result-type framing matrix
Different JET result types demand different lead verbs and carry different overclaiming risks:
| Result type |
Lead verb in abstract |
What the intro must promise |
Typical framing risk |
| Characterization |
"We characterize ..." |
the full set of mechanisms/preferences/equilibria satisfying the property |
writing "if and only if" when only sufficiency is proved |
| Existence |
"We prove existence of ..." |
the conditions plus the route (fixed point, constructive, lattice) |
implying uniqueness or computability the proof never delivers |
| Uniqueness / comparative statics |
"We show the equilibrium is unique / monotone in ..." |
the order structure doing the work |
asserting comparative statics outside the proved parameter region |
| Impossibility |
"No mechanism satisfying A1–A3 can ..." |
the exact axiom set, with tightness examples per axiom |
letting readers infer a stronger informal reading than the axioms support |
| Counterexample paper |
"We construct an example showing ..." |
why the example overturns a folk presumption |
underselling — a decisive counterexample is a JET contribution in its own right |
Worked vignette: framing a mechanism-design result
Hypothetical paper: with two maxmin bidders holding a finite set of priors, the revenue-maximizing
auction is a posted price. The framing pass:
- Question, theoretically posed: how does bidder ambiguity reshape optimal selling?
- Theorem sentence: "Under Assumptions 1–3 (maxmin bidders, finite prior set, independent
values), we characterize the seller-optimal mechanism and show it is a posted price."
- Why it matters: it overturns the exclusion-at-the-margin logic of the Bayesian optimal auction
once the common-prior assumption is dropped.
- Scope guardrail: two bidders, finite prior sets; does NOT claim the result for
smooth-ambiguity preferences — say so in the abstract.
- Subfield signal: mechanism design and decision theory under ambiguity — name both, since
JET routes by editor field.
Calibration: how accepted JET introductions tend to run
- Introductions commonly run a few pages: the motivating economic question opens, an informal
statement of the main theorem appears early, then positioning and a roadmap. Patterns vary by
subfield — calibrate against recent JET issues in your area, and confirm against the journal's
current author guidelines for any formal length rules.
- The abstract stays formal and short; the introduction carries the intuition.
Anti-patterns
- An empirical-style narrative intro that buries the theorem
- Overclaiming generality the proof does not reach
- An abstract with a sweeping claim and a much narrower theorem in §3
- Selling motivation while leaving the actual statement vague
Output format
【One-line theorem】<abstract sentence>
【Why it matters】weakens/generalizes/overturns <closest result>
【Scope guardrail】holds under <conditions>; does NOT claim <X>
【Subfield】<routing area>
【Next】jet-writing-style (polish) / jet-submission
Source: brycewang-stanford/Awesome-Journal-Skills → Journal-of-Economic-Theory-Skills/skills/jet-contribution-framing/SKILL.md
1---2name: jet-contribution-framing3description: Use when framing the contribution of a Journal of Economic Theory (JET) paper so its theoretical advance is unmistakable — lead with the theorem, state why the result matters for the relevant theory, and right-size the claim to exactly what the proof delivers. For JET's theory-first bar; it does not overclaim.4---567# Contribution Framing (jet-contribution-framing)89## When to trigger1011- Writing the abstract and introduction of a JET theory paper12- A desk editor must see the theoretical contribution within the first page13- You need to make sure the claim does not exceed the proof1415## What JET rewards1617JET accepts a paper because it is a **rigorous, original theoretical contribution**. Framing must put18the **theorem first** and make its significance legible to the matching editor and two expert19referees. A JET introduction is not a story arc around data — it is a precise statement of *what is now20known that was not before*.2122## The framing template23241. **The question, theoretically posed.** What property of mechanisms / equilibria / preferences /25 markets is at stake?262. **The result, stated as a theorem.** One sentence the abstract can carry: "We characterize / prove27 that / show existence of ...". Because **abstract references must be written in full**, cite at most28 one or two anchor results there.293. **Why it matters.** Which prior result it weakens an assumption of, generalizes, or overturns — the30 delta from jet-literature-positioning.314. **What it does *not* claim.** Name the scope (finite types, specific domain) so referees do not read32 in a stronger claim than the proof supports.335. **Subfield signal.** State the area (mechanism design, decision theory, matching, …) so routing34 reaches the right editor.3536## Right-sizing the claim3738- Distinguish **characterization** vs. **existence** vs. **comparative statics** — claim only the one(s)39 you proved.40- Avoid "general" / "robust" / "essentially" unless the theorem literally says so.41- If a result holds only under an extra condition, say it in the abstract, not a footnote.4243## Referee-proof contribution sentence4445Before finalizing, rewrite the main contribution in this syntax:4647```text48Under [assumptions], we prove [result type] for [environment], which [weakens/generalizes/constructs]49[closest theorem] by [precise delta].50```5152Every bracket should map to a theorem statement or a cited frontier result. If a bracket is rhetorical53rather than formal, the framing is ahead of the proof.5455## Result-type framing matrix5657Different JET result types demand different lead verbs and carry different overclaiming risks:5859| Result type | Lead verb in abstract | What the intro must promise | Typical framing risk |60|---|---|---|---|61| Characterization | "We characterize ..." | the full set of mechanisms/preferences/equilibria satisfying the property | writing "if and only if" when only sufficiency is proved |62| Existence | "We prove existence of ..." | the conditions plus the route (fixed point, constructive, lattice) | implying uniqueness or computability the proof never delivers |63| Uniqueness / comparative statics | "We show the equilibrium is unique / monotone in ..." | the order structure doing the work | asserting comparative statics outside the proved parameter region |64| Impossibility | "No mechanism satisfying A1–A3 can ..." | the exact axiom set, with tightness examples per axiom | letting readers infer a stronger informal reading than the axioms support |65| Counterexample paper | "We construct an example showing ..." | why the example overturns a folk presumption | underselling — a decisive counterexample is a JET contribution in its own right |6667## Worked vignette: framing a mechanism-design result6869Hypothetical paper: with two maxmin bidders holding a finite set of priors, the revenue-maximizing70auction is a posted price. The framing pass:7172- **Question, theoretically posed:** how does bidder ambiguity reshape optimal selling?73- **Theorem sentence:** "Under Assumptions 1–3 (maxmin bidders, finite prior set, independent74 values), we characterize the seller-optimal mechanism and show it is a posted price."75- **Why it matters:** it overturns the exclusion-at-the-margin logic of the Bayesian optimal auction76 once the common-prior assumption is dropped.77- **Scope guardrail:** two bidders, finite prior sets; does NOT claim the result for78 smooth-ambiguity preferences — say so in the abstract.79- **Subfield signal:** mechanism design *and* decision theory under ambiguity — name both, since80 JET routes by editor field.8182## Calibration: how accepted JET introductions tend to run8384- Introductions commonly run a few pages: the motivating economic question opens, an informal85 statement of the main theorem appears early, then positioning and a roadmap. Patterns vary by86 subfield — calibrate against recent JET issues in your area, and confirm against the journal's87 current author guidelines for any formal length rules.88- The abstract stays formal and short; the introduction carries the intuition.8990## Anti-patterns9192- An empirical-style narrative intro that buries the theorem93- Overclaiming generality the proof does not reach94- An abstract with a sweeping claim and a much narrower theorem in §395- Selling motivation while leaving the actual statement vague9697## Output format9899```100【One-line theorem】<abstract sentence>101【Why it matters】weakens/generalizes/overturns <closest result>102【Scope guardrail】holds under <conditions>; does NOT claim <X>103【Subfield】<routing area>104【Next】jet-writing-style (polish) / jet-submission105```106107---108109**Source:** [`brycewang-stanford/Awesome-Journal-Skills`](https://github.com/brycewang-stanford/Awesome-Journal-Skills) → `Journal-of-Economic-Theory-Skills/skills/jet-contribution-framing/SKILL.md`
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