Hypothesis Generation
spacering-net/codeg
Structured hypothesis formulation from observations. An agent skill from spacering-net/codeg.
A skill your agent uses when a The Economic Journal (EJ) manuscript needs an explicit economic model or mechanism — either a theory paper's model, or the framework that gives a reduced-form…
Install Ecj Theory Model
$ npx skills add brycewang-stanford/Awesome-Journal-Skills --skill ecj-theory-model -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install brycewang-stanford/Awesome-Journal-Skills ecj-theory-model --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/brycewang-stanford/Awesome-Journal-Skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/The-Economic-Journal-Skills/skills/ecj-theory-model .claude/skills/ecj-theory-model && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "ecj-theory-model" agent skill from https://github.com/brycewang-stanford/Awesome-Journal-Skills/tree/main/The-Economic-Journal-Skills/skills/ecj-theory-model into .claude/skills/ecj-theory-model/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ecj-theory-model", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/brycewang-stanford/Awesome-Journal-Skills/tree/main/The-Economic-Journal-Skills/skills/ecj-theory-modelType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add brycewang-stanford/Awesome-Journal-Skills --skill ecj-theory-model -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install brycewang-stanford/Awesome-Journal-Skills ecj-theory-model --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/brycewang-stanford/Awesome-Journal-Skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/The-Economic-Journal-Skills/skills/ecj-theory-model .agents/skills/ecj-theory-model && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "ecj-theory-model" agent skill from https://github.com/brycewang-stanford/Awesome-Journal-Skills/tree/main/The-Economic-Journal-Skills/skills/ecj-theory-model into .agents/skills/ecj-theory-model/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ecj-theory-model", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add brycewang-stanford/Awesome-Journal-Skills --skill ecj-theory-model -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install brycewang-stanford/Awesome-Journal-Skills ecj-theory-model --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/brycewang-stanford/Awesome-Journal-Skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/The-Economic-Journal-Skills/skills/ecj-theory-model .cursor/skills/ecj-theory-model && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "ecj-theory-model" agent skill from https://github.com/brycewang-stanford/Awesome-Journal-Skills/tree/main/The-Economic-Journal-Skills/skills/ecj-theory-model into .cursor/skills/ecj-theory-model/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ecj-theory-model", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/brycewang-stanford/Awesome-Journal-Skills.git --path The-Economic-Journal-Skills/skills/ecj-theory-model--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add brycewang-stanford/Awesome-Journal-Skills --skill ecj-theory-model -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install brycewang-stanford/Awesome-Journal-Skills ecj-theory-model --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/brycewang-stanford/Awesome-Journal-Skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/The-Economic-Journal-Skills/skills/ecj-theory-model .gemini/skills/ecj-theory-model && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "ecj-theory-model" agent skill from https://github.com/brycewang-stanford/Awesome-Journal-Skills/tree/main/The-Economic-Journal-Skills/skills/ecj-theory-model into .gemini/skills/ecj-theory-model/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ecj-theory-model", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install brycewang-stanford/Awesome-Journal-Skills ecj-theory-modelInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add brycewang-stanford/Awesome-Journal-Skills --skill ecj-theory-model -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/brycewang-stanford/Awesome-Journal-Skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/The-Economic-Journal-Skills/skills/ecj-theory-model .github/skills/ecj-theory-model && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "ecj-theory-model" agent skill from https://github.com/brycewang-stanford/Awesome-Journal-Skills/tree/main/The-Economic-Journal-Skills/skills/ecj-theory-model into .github/skills/ecj-theory-model/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ecj-theory-model", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add brycewang-stanford/Awesome-Journal-Skills --skill ecj-theory-model -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install brycewang-stanford/Awesome-Journal-Skills ecj-theory-model --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/brycewang-stanford/Awesome-Journal-Skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/The-Economic-Journal-Skills/skills/ecj-theory-model .opencode/skills/ecj-theory-model && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "ecj-theory-model" agent skill from https://github.com/brycewang-stanford/Awesome-Journal-Skills/tree/main/The-Economic-Journal-Skills/skills/ecj-theory-model into .opencode/skills/ecj-theory-model/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ecj-theory-model", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
ecj-theory-model- GitHub stars
- 1.2k
- Token cost
- ~1.3k tokens
- SKILL.md length
- 623 words
- Files
- 1
- Skills in repo
- 2,387
- Repo updated
- First seen
- Licence
- MIT
At a glance
A skill your agent uses when a The Economic Journal (EJ) manuscript needs an explicit economic model or mechanism — either a theory paper's model, or the framework that gives a reduced-form…
- A The Economic Journal (EJ) manuscript needs an explicit economic model
- SKILL.md covers When to trigger, Why this matters at EJ, Building / disciplining the… and Consistency checks a referee…, plus 3 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Mechanism — either a theory papers model
What it does
Ecj Theory Model is an agent skill from brycewang-stanford/Awesome-Journal-Skills. Use when a The Economic Journal (EJ) manuscript needs an explicit economic model or mechanism — either a theory paper's model, or the framework that gives a reduced-form empirical result its economic meaning. Builds and disciplines the economic argument; it does not run estimation (see ecj-identification).
Its SKILL.md is about 1.3k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Research & Science. The repository describes itself as: Journal-specific Claude Code/Codex skill packs covering mainstream journals — AER, QJE, Nature, Cell, 管理世界, 经济研究 & 200+ more — your fast track to getting published. ｜ 覆盖主流期刊的… The licence is MIT.
When your agent uses it
- A The Economic Journal (EJ) manuscript needs an explicit economic model
- Mechanism — either a theory papers model
- The framework that gives a reduced-form empirical result its economic meaning
Example prompts
- “/ecj-theory-model”
What it can do on your machine
Read from SKILL.md and the folder at commit 932eb23. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Ecj Theory Model loads about 1.3k tokens when it runs. Until then it costs about 81 tokens; SKILL.md has 623 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from brycewang-stanford/Awesome-Journal-Skills at commit 932eb23, republished under its MIT licence (© brycewang-stanford). 623 words, ~1,320 tokens.
Download SKILL.mdSave it as
.claude/skills/ecj-theory-model/SKILL.md (or your agent's skills folder).- name
- ecj-theory-model
- description
- Use when a The Economic Journal (EJ) manuscript needs an explicit economic model or mechanism — either a theory paper's model, or the framework that gives a reduced-form empirical result its economic meaning. Builds and disciplines the economic argument; it does not run estimation (see ecj-identification).
Theory & Mechanism Model (ecj-theory-model)
When to trigger
- A reduced-form result has no model or stated mechanism behind it ("what is the economics?")
- A structural/theory paper's model exists but its assumptions or comparative statics are not disciplined
- The empirical specification is not derived from, or connected to, any economic framework
- A referee will ask which economic force drives the result and you cannot point to one
Why this matters at EJ
EJ publishes the full breadth of economics — theory and applied — and both are read for whether the economic argument is sound and of broad interest. A clean empirical effect with no mechanism is a half-paper here: EJ wants to know why, not only whether, because the "why" is what travels across fields and gives the result general relevance. The model need not be elaborate; a one- or two-equation framework that delivers a sharp, testable comparative static, explained so a generalist follows it, is often stronger than a baroque one. EJ's exposition premium applies to theory too — the economic intuition is stated in words before the algebra. If the contribution is purely methodological/econometric with no substantive economics, weigh The Econometrics Journal (also RES) instead of EJ.
Two modes:
- Theory-led paper: the model is the contribution; empirics (if any) illustrate or test it.
- Empirics-led paper: a compact model or explicit mechanism organizes the empirics, generates the prediction being tested, and gives the estimate its interpretation.
Building / disciplining the model
Minimal-model discipline (for empirics-led papers)
- Write the smallest model whose comparative static is the empirical prediction. Tie one model object to one estimated coefficient.
- State agents, their objective, the constraint, and what they optimize over. The economic logic — substitution, incentives, market clearing — should be visible to a non-specialist.
- Derive the sign/shape prediction the data will test, and say what evidence would refute it.
- Check the partial-equilibrium result against general equilibrium: does the effect survive when prices/quantities adjust elsewhere? If not, say so and bound it.
Full-model rigor (for theory-led / structural papers)
- Assumptions: each one earns its place; flag which are substantive vs. technical convenience.
- Existence/uniqueness of equilibrium where relevant; comparative statics stated as propositions.
- Welfare analysis: who gains, who loses, and the efficiency benchmark.
- Map structural parameters to identifying variation before estimation (hand off to
ecj-identification). - Robustness of qualitative conclusions to the key assumptions; counterfactuals.
Show full SKILL.md (241 more words)Show less
Consistency checks a referee runs
- Do agents in the model behave optimally given prices and incentives?
- Does the market clear, and does the result survive equilibrium adjustment?
- Are there unmodeled selection or entry/exit margins that would overturn the conclusion?
- Is the comparative static the paper tests actually a prediction of the model, or assumed?
- Does the welfare claim follow from the model, or is it asserted?
- Could a generalist economist follow the economic intuition without the appendix?
Checklist
- An explicit model or written-down mechanism exists
- One testable comparative static is derived and mapped to an estimated object
- Optimization, incentives, and market clearing are visible in the logic
- The economic intuition is stated in words before the algebra (EJ exposition bar)
- General-equilibrium / selection feedback considered (or bounded if assumed away)
- Assumptions labeled substantive vs. technical
- Welfare / efficiency implications follow from the model, not asserted
- The model is the smallest one that delivers the result (no gratuitous generality)
Anti-patterns
- An empirical result with no model and no mechanism — "we find an effect" with no economic story
- A model whose comparative statics are never connected to the data
- Partial-equilibrium conclusions that ignore obvious GE feedback a referee will raise
- A needlessly elaborate model that obscures rather than sharpens the economic point
- Algebra with no verbal economic interpretation — fails EJ's exposition bar
- Assumptions chosen for tractability that secretly drive the headline result
- Welfare statements that do not follow from the stated objective function
Output format
【Mode】theory-led / empirics-led
【Core mechanism】the economic force in one sentence
【Model primitives】agents / objective / constraint
【Testable prediction】comparative static + the estimated object it maps to
【Intuition-before-algebra】stated in words? [y/n]
【GE / selection check】survives equilibrium adjustment? [y/n + note]
【Welfare】who gains/loses; efficiency benchmark
【Next】ecj-identification (to test it) or ecj-robustness© brycewang-stanford, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in The-Economic-Journal-Skills/skills/ecj-theory-model of brycewang-stanford/Awesome-Journal-Skills.
Open the folder on GitHubat commit 932eb23
Compare with similar skills
Ecj Theory Model next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Ecj Theory Model this skillbrycewang-stanford/Awesome-Journal-Skills | 1.2k | — | ~1.3k | Automated safety check: Pass | MIT | |
| Hypothesis Generationspacering-net/codeg | 3.9k | 14 repos | ~3.6k | Automated safety check: Notes | MIT | |
| GitHub Deep Researchbytedance/deer-flow | 84k | 4 repos | ~1.3k | Automated safety check: Pass | MIT | |
| Nature Paper CardYuan1z0825/nature-skills | 47k | 2 repos | ~2.1k | Automated safety check: Pass | Apache-2.0 | |
| Content Research Writerweapp-tailwindcss/weapp-tailwindcss | 1.9k | 25 repos | ~3.5k | Automated safety check: Pass | MIT | |
| Last30daysmvanhorn/last30days-skill | 64k | — | ~7.9k | Automated safety check: Notes | MIT |
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GitHub Deep Research
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Researches a GitHub repository over four rounds using the GitHub API and web search, then writes a structured markdown report with timeline, metrics and Mermaid diagrams.
Nature Paper Card
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Builds a structured deep-reading card for one scientific paper, covering methods, how experiments support claims, limitations and research ideas, with a script to prepare the source.
Content Research Writer
weapp-tailwindcss/weapp-tailwindcss
Assists in writing high-quality content by conducting research, adding citations, improving hooks, iterating on outlines, and providing real-time feedback on each section.
Last30days
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Research what people actually say about any topic in the last 30 days.
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Structured manuscript/grant review with checklist-based evaluation.
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Categories
Questions about Ecj Theory Model
What does Ecj Theory Model do?
A skill your agent uses when a The Economic Journal (EJ) manuscript needs an explicit economic model or mechanism — either a theory paper's model, or the framework that gives a reduced-form…. Ecj Theory Model is an agent skill from brycewang-stanford/Awesome-Journal-Skills. Use when a The Economic Journal (EJ) manuscript needs an explicit economic model or mechanism — either a theory paper's model, or the framework that gives a reduced-form empirical result its economic meaning.
When should I use Ecj Theory Model?
Ecj Theory Model fits situations like: A The Economic Journal (EJ) manuscript needs an explicit economic model; mechanism — either a theory papers model; the framework that gives a reduced-form empirical result its economic meaning.
How do I install Ecj Theory Model in Claude Code?
Run `npx skills add brycewang-stanford/Awesome-Journal-Skills --skill ecj-theory-model -a claude-code`. Or copy the skill folder (The-Economic-Journal-Skills/skills/ecj-theory-model in brycewang-stanford/Awesome-Journal-Skills) into .claude/skills/ecj-theory-model in your project. Claude Code loads it when a task matches its description.
How do I install Ecj Theory Model in Codex?
Run `npx skills add brycewang-stanford/Awesome-Journal-Skills --skill ecj-theory-model -a codex`. Or copy the skill folder (The-Economic-Journal-Skills/skills/ecj-theory-model in brycewang-stanford/Awesome-Journal-Skills) into .agents/skills/ecj-theory-model in your project. Codex loads it when a task matches its description.
Can I use Ecj Theory Model in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add brycewang-stanford/Awesome-Journal-Skills --skill ecj-theory-model -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/ecj-theory-model, .gemini/skills/ecj-theory-model, .github/skills/ecj-theory-model and .opencode/skills/ecj-theory-model in your project.
What does Ecj Theory Model need to run?
SKILL.md names no scripts, command-line tools or credentials: Ecj Theory Model is instructions for the agent only.
Does Ecj Theory Model access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Ecj Theory Model safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Ecj Theory Model use?
Ecj Theory Model is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Ecj Theory Model use?
About 1.3k tokens (SKILL.md is roughly 5.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Ecj Theory Model?
Skills that share tags, products or a category with Ecj Theory Model: Hypothesis Generation (spacering-net/codeg, 3.9k stars), GitHub Deep Research (bytedance/deer-flow, 84k stars), Nature Paper Card (Yuan1z0825/nature-skills, 47k stars) and Content Research Writer (weapp-tailwindcss/weapp-tailwindcss, 1.9k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Ecj Theory Model?
brycewang-stanford (a GitHub user) maintains it in brycewang-stanford/Awesome-Journal-Skills, which has 1,231 GitHub stars. The repository holds 2,387 skills in this directory. The repository was last updated on September 27, 2026.
Source: brycewang-stanford/Awesome-Journal-Skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.