Open US HANK models — code, data, reach

Best complete candidate: Bayer–Born–Lütticke provides the clearest combination of a US-calibrated model, public data, estimation machinery, replication targets and an explicit GPL-3.0 licence — on the published record; none of it has been executed here. Two qualifications belong with the verdict rather than under it. The replication repository is frozen: the authors' own copy was last pushed in October 2022, against a paper published in 2024, and their maintained line has since moved to a general toolbox (BASEtoolbox.jl) rather than this model. And Sequence-Space Jacobian is the only candidate whose repository is still actively pushed — it is the strongest Python foundation, though not itself a fully estimated institutional US model.

Nothing in this table was run. Every coverage claim is read off the paper and the repository's own documentation, so this is a survey of what is published, not a comparison of what the models do.

Citation counts use canonical OpenAlex records; stars and last-push dates use the GitHub API. Both are a snapshot, retrieved 12 August 2026 and reproducible with `reports/fetch_hank_counts.py`; they move continuously, so read them as orders of magnitude rather than as figures.
Model / resource	Year	Citations	Stars	Code and data	Coverage
Bayer–Born–Lütticke Shocks, Frictions, and Inequality in US Business Cycles	2024	46	70 (fork: 4)	Both available Julia · GPL-3.0 last push Oct 2022	US business cycles; income and wealth inequality; one-/two-asset households; portfolio choice; fiscal and monetary shocks; Bayesian estimation. Aggregate quarterly data approximately 1954Q3–2019Q4.
FRBNY Estimating HANK Central-bank estimation and forecast evaluation	2023	10	5	Code + BBL data Julia · no licence declared last push Jun 2024	Recursive Bayesian estimation and pseudo-out-of-sample forecasts; output, consumption, investment, wages, hours, inflation, policy/shadow rates and inequality; comparison with Smets–Wouters.
Kaplan–Moll–Violante Monetary Policy According to HANK	2018	1,377	N/A	Both available Fortran · ICPSR; licence unclear	US monetary transmission; liquid and illiquid assets; hand-to-mouth households; earnings risk; wealth and MPC distributions; aggregate consumption responses. Scientific replication rather than forecasting.
Sequence-Space Jacobian One- and two-asset HANK examples	2021	248	353	Python framework + example inputs MIT; no full US dataset last push Feb 2025	Steady states, Jacobians, likelihoods, impulse responses and perfect-foresight transitions. Broad modelling framework, not a specific official US empirical model.
Fed Board HANK Comes of Age Monetary policy with heterogeneous overlapping generations	2024/25	0*	N/A	Downloadable materials No maintained official GitHub repo; licence unclear	US life cycle: age, labour supply, wealth, retirement, MPCs, monetary transmission, asset repricing, consumption and welfare by age.

* OpenAlex reports zero citations on the revised DOI record; citations to earlier versions may be split or delayed. “N/A” means no official GitHub repository — not zero popularity. BBL stars are the authors' own repository; the parenthesised figure is the FRBNY-DSGE fork of it.

Open US HANK models: code, data, reach.

Five models, on the published record.

Where each row comes from.