The collection in numbers
Statistics.
Summary statistics over the 297 graphed papers.
Machine-extracted graphs, provisional until verified.
Graphs (N = 297)
| Mean | SD | Min | Max | |
|---|---|---|---|---|
| Claims | 34.1 | 11.6 | 9 | 71 |
| Derivations | 19.3 | 6.9 | 3 | 42 |
| Headline claims | 5.3 | 2.2 | 1 | 14 |
| Major results | 10.7 | 4.4 | 2 | 27 |
| Supporting | 15.4 | 7.4 | 4 | 36 |
| Context | 2.7 | 2.5 | 0 | 19 |
| Depth | 7.0 | 2.1 | 3 | 15 |
Node types per paper
| Mean | SD | Min | Max | |
|---|---|---|---|---|
| Assumptions | 5.8 | 3.2 | 0 | 19 |
| Definitions and primitives | 5.7 | 3.4 | 0 | 16 |
| Equilibrium concepts | 1.1 | 1.1 | 0 | 6 |
| Propositions | 4.3 | 2.7 | 0 | 14 |
| Lemmas and corollaries | 3.7 | 3.9 | 0 | 22 |
| Formal conditions | 1.4 | 2.0 | 0 | 12 |
| Comparative statics | 1.3 | 1.7 | 0 | 10 |
| Welfare results | 0.8 | 1.2 | 0 | 6 |
| Mechanism and substantive claims | 6.1 | 2.9 | 1 | 21 |
| External inputs | 0.9 | 1.5 | 0 | 9 |
| Other | 3.0 | 2.3 | 0 | 16 |
Claims by prominence and placement (N = 294 papers with source text)
| Role | N | In abstract | In introduction |
|---|---|---|---|
| headline | 1552 | 33% | 95% |
| major | 3137 | 13% | 85% |
| supporting | 4531 | 9% | 81% |
| auxiliary | 452 | 6% | 72% |
| contextual | 354 | 59% | 95% |
N counts claims, pooled over 294 papers (3 omitted: no local PDF or no text layer). Word-coverage matching, threshold 0.5. Machine-extracted graphs, provisional.