Original collectionUnder development

Under development — library extension. This report is part of the expanded-library work, not the original collection. Source preparation, methods and results are subject to revision.

Provisional eligibility assessment — under development. PDF audit reopened this assessment; no new comparison is admitted. Table 2 Panel B follows the same inventors in 1996 and 2007, comparing baseline Rochester residents with other cities. This is a separate binary-shock DiD from the main continuous-cluster IV analysis. Selected Table 2 data remain unavailable in the recorded package. This working assessment is not fully vetted and may change. See the report below for its recorded replication or assessment status. Provisional eligibility log

The Effect of High-Tech Clusters on the Productivity of Top Inventors

Enrico Moretti (2021). American Economic Review.

Under development — community extension. This is a provisional source-design assessment, not a new successful replication or a final eligibility ruling.

Extension index · Provisional eligibility log · Assessment JSON · QMD · Reproduction code

Source design and template applicability

The main cluster-productivity application combines continuous cluster-density exposure and IV. Secondary Rochester/Kodak binary-shock specifications do not replace that mixed design under the current rule; their analysis data are also unavailable.

No DiD estimates, uncertainty intervals or homogeneity-test decision were computed in this tranche. No point is added to the calibration plots. This is not a zero effect or a failed statistical test.

Recorded treatment-column measurement

Preparation blocked.

The cluster-size exposure is generated by the COMETS/APAT patent/inventor pipeline; data_3.dta and data_patent_level_3.dta are absent.

These are the existing data-measured counts, not counts inferred from design labels. A binary instrument, group indicator or interaction component need not be the treatment of interest; the source-design assessment above takes precedence for template applicability.

Replication status

This tranche: unsupported design; source code/documentation inspected, no estimator run.

Supplied library: rebuild_required; verification: public data absent; preparation: runs_with_shim. These are the library’s labels, not new verification claims. Missing data and unsupported designs are separate issues.

Evidence and provenance

The following files in the supplied library were inspected. Their SHA-256 digests are recorded in the downloadable assessment JSON. Source archives and microdata are not redistributed.

• AER/Moretti_AER_2021_140662/R/01_replicate_empirical_results.R (265 lines)
• AER/Moretti_AER_2021_140662/aeraej-71.md (194 lines)