---
name: ajs-theory-building
description: Use when building the theoretical argument of an American Journal of Sociology (AJS) manuscript into a portable, discipline-level contribution. AJS prizes theoretical ambition above a bare finding — explicit concepts, mechanisms, and scope conditions, in the idiom of the work (quantitative, comparative-historical, ethnographic, or formal). Structures the argument; it does not run analyses.
---

# Theory & Argument Building (ajs-theory-building)

AJS is, historically and today, the discipline's most **theory-forward** flagship — it was founded
(1895) to "build up a fund of social theory," and it still rewards a portable idea over a bare result.
A finding is not an AJS contribution until it is attached to an **argument sociologists can carry to
other problems.** This skill turns evidence into theory.

## When to trigger

- The empirics are strong but the "so what / why does the field care" is thin
- A reader said the paper is "atheoretical," "ad hoc," "merely descriptive," or "just a finding"
- You need explicit concepts, mechanisms, and scope conditions
- Comparative-historical or ethnographic work whose theory is implicit and needs surfacing

## Build the argument (by mode of work)

### Quantitative / variable-based
1. **Concept** — define constructs precisely; distinguish from neighbors; justify measurement choices.
2. **Mechanism** — the social process linking cause to effect: who does what, why, under what
   structural conditions.
3. **Observable implications** — what we should and should *not* see if the mechanism operates; these
   become the tests in `ajs-research-design`.
4. **Scope conditions** — populations, periods, and settings where the argument holds.

### Comparative-historical
- State the **theoretical puzzle** the comparison is built to solve before the cases.
- Make the **causal narrative** explicit — sequence, conjuncture, and path-dependence as theory, not
  just chronology.
- Specify what the cases are cases *of* — the general class the argument addresses.

### Ethnographic / interpretive
- Make the **conceptual stakes** explicit: what the case lets the field *see* or *rethink*.
- Build from observed practice to a **portable mechanism or concept**, not a thick description alone.
- Engage the strongest rival reading of the same material.

### Formal / analytical
- State the **substantive sociological puzzle** before the setup; keep assumptions transparent.
- Translate results into **comparative statics** a reader can recognize empirically.

## The "portability" test (AJS-specific)

Ask: *Could a sociologist in another area import this concept or mechanism to their own problem?* If
yes, you have a discipline-level contribution. If it works only for your exact case, generalize the
logic or reframe (back to `ajs-topic-selection`).

## Anti-patterns

- "Hypothesizing after results are known" (HARKing) — state theory before tests
- Thick description or a regression table presented *as* the contribution, with theory left implicit
- Mechanisms named but never made observable
- Universal claims with no scope conditions
- Burying the theoretical move under the empirics — the contribution must be stated plainly and early

## Output format

```
【Core claim】one sentence
【Concepts】key constructs, precisely defined
【Mechanism】the social process / causal narrative
【Observable implications】testable or recognizable consequences → research-design
【Scope conditions】where it holds / fails
【Portability】who else in sociology can use this argument
【Next】ajs-research-design
```

## Supplementary resources

- [`../../resources/external_tools.md`](../../resources/external_tools.md) — analysis tooling across traditions
- [`../../resources/official-source-map.md`](../../resources/official-source-map.md) — AJS's theory-forward scope and "original sociological research" expectation