---
name: jeg-contribution-framing
description: Use when articulating the marginal contribution of a manuscript to the Journal of Economic Growth (JEG) — sharpening what the paper adds to economic-growth knowledge, calibrated to a specialist Springer Nature theory-and-empirics outlet. Turns "a paper about X" into "the first result that Y."
---

# Contribution Framing (jeg-contribution-framing)

## When to trigger

- The introduction explains what you did but not why it matters for growth
- You cannot state the contribution in one sentence without hedging
- A co-author asks "what's the one thing a reader remembers?"

## The JEG contribution bar

JEG is a specialist outlet, so the contribution must be a genuine advance **in understanding growth or dynamic-macro dynamics**, not a technique demonstration or a within-field estimate that mentions growth. The journal values both:

- **Theoretical contributions** — a new mechanism, a more general result, a unification of mechanisms, a resolution of a tension in existing growth models, or a tractable model that delivers a sharp, testable growth prediction.
- **Empirical contributions** — credible evidence on a growth-relevant causal channel, a new long-run or cross-country dataset that resolves a measurement gap, or a test that discriminates between competing growth theories.

## Frame the contribution

1. **One-sentence claim.** "We show that [growth mechanism / determinant] [does what], which [overturns / generalizes / first-quantifies] [the standard account]."
2. **Type-tag it.** New mechanism? More general theorem? New identification? New data? Quantitative magnitude? Be specific; JEG referees discount vague "we contribute to the literature."
3. **Bound it honestly.** State the scope of the claim — which economies, which period, which assumptions. Specialist referees punish overreach harder than modest scope.
4. **Connect to the growth debate.** Say which live question the result moves (sources of cross-country income gaps, the demographic transition, the growth effect of institutions/human capital/trade/finance).

## Theory vs empirics calibration

- **Theory paper**: lead with the mechanism and its generality; the contribution is the *result and its reach*, not the algebra. Note what comparative statics or testable predictions it yields.
- **Empirical paper**: lead with the credibly identified magnitude and what it teaches about the mechanism; the contribution is the *answer to a growth question*, not the regression table.

## Anti-patterns

- "We are the first to study X in country Y" with no growth mechanism at stake.
- Claiming a general theorem while the result hinges on a knife-edge assumption.
- Selling a method (a new estimator, a new model class) as the contribution when JEG wants the *growth insight* it buys.
- Listing three weak contributions instead of one strong one.

## Worked vignette — sharpening a persistence claim

A draft says: "We study the long-run effects of medieval trade routes on regional development in Europe." Walked through the rules above (all numbers illustrative):

1. **One-sentence claim**: "We show that a one-standard-deviation increase in medieval market access predicts roughly 14 log points higher regional income per capita today, and that about two-thirds of this gap runs through pre-industrial human-capital accumulation rather than later agglomeration."
2. **Type-tag**: new identification (route-network instrument) + magnitude + mechanism decomposition — three tags that reinforce one claim, not three separate claims.
3. **Scope bound**: 1,100 European subnational regions; an effect local to regions near historical routes; explicitly *not* a statement about national growth rates.
4. **Debate moved**: whether deep-rooted market institutions or industrial-era agglomeration explain within-Europe income dispersion.

The bare reduced-form persistence coefficient would not have cleared the JEG bar; the mechanism share is what converts a long-run correlation into a growth contribution.

## Referee pushback on the claim — and the JEG fix

- "Persistence without mechanism" → add a decomposition or intermediate-period outcomes; a growth referee treats an unexplained long-run correlation as a stylized fact, not a contribution.
- "Magnitude not interpretable" → restate in steady-state income ratios, half-lives of convergence, or years-of-development equivalents — never leave the headline as a bare coefficient.
- "The 'first' is overstated" → bound novelty to the strand, sample, and identification, and cite the nearest prior estimate by name.
- "This is development economics, not growth" → re-anchor the claim to divergence, convergence, or transition dynamics; if that re-anchoring is impossible, the venue is wrong, not the framing.

## Output format

```
【One-sentence contribution】"We show that ..."
【Type】new mechanism / general result / new identification / new data / magnitude
【Scope bound】economies / period / assumptions
【Debate moved】which growth question
【Next skill】jeg-identification-strategy
```