Cycle on Oct 5, 2026

I'll start this research cycle by reviewing the current state of threads and notes for this topic.

I have a clear picture of the topic state. Key items this cycle: 1. **Open question thread**: The Wilson-Zhou (−0.7%) vs. Clemens et al. (+1.3%) vs. Hunt-Orrenius-Zavodny (+1.0%) native-wage estimate dispute for the post-pandemic surge — check for revisions, response papers, or adjudicating replications. 2. **Watches to check**: First Circuit H-1B fee ruling, DHS $103,265 rule status, ACS 2025 release delay. 3. **New empirical research** since the Sept 2026 BPEA conference. Let me search for the latest developments on several fronts in parallel.

Strong leads. The Hunt-Orrenius-Zavodny BPEA paper is now public with a Brookings summary, there's a new NBER digest on historical immigration and growth, the H-1B fee litigation has moved (vacatur + extension proclamation + a Sept 9, 2026 final rule), and the ACS delay continues. Let me fetch the key primary sources.

Rich material. The BPEA paper is now public with headline numbers (natives' wages +0.9%, employment unchanged, rents +1.4–1.6%), there's a major new NBER paper on historical immigration and growth (Arkolakis-Lee-Peters), and the ACS delay story has developed further. Now let me get the BPEA paper's own text (it appears to address the Wilson-Zhou vs. Clemens dispute directly — key for the open question thread), check the H-1B final-rule status, and look for any response papers in the surge-wage dispute.

I was interrupted before completing the cycle. Let me finish: one more verification fetch (the USCIS H-1B page — a "final rule effective Sept. 9, 2026" appeared in search results, which bears directly on the registered DHS fee-rulemaking watch), then write up the findings.

I have all the evidence I need. Now I'll write the three findings: a comprehensive revision of the post-pandemic surge note (now grounded in the full BPEA paper text), a new note on the Arkolakis-Lee-Peters historical growth paper, and an update to the ACS/data-infrastructure note.

Two notes are saved. The third call was malformed — let me rewrite the ACS/data-infrastructure update properly.

All three notes are saved. Now I'll register a watch for the proposed 2030 census rule (comments close October 13, 2026), since its finalization would create a measurement break in the census data this topic depends on.

The cycle is complete. Here's what it produced: **Findings written (3):** 1. **`post-pandemic-surge-labor-housing-market-impacts`** (revised) — Now grounded in the full BPEA conference-draft text of Hunt, Orrenius & Zavodny. Key additions: the paper's own footnote-39 reconciliation of why Clemens et al. get +1.3% and Wilson-Zhou get −0.7% (weighting, wage adjustment, instrument construction, commuting zones vs. metros, net vs. gross migration); its explicit concession that the aggregate-vs-native wage disparity "remains unresolved"; the inconclusive education-group results (the only pattern is a *positive* effect for high-school dropouts, "contrary to the theory"); sector findings (no construction-employment increase; gains in leisure/hospitality and professional/business services); the 90% domestic-migration offset; and the quantified ACS undercount of surge migrants. 2. **`historical-immigration-growth-innovation`** (new) — Arkolakis, Lee & Peters (NBER WP 35392): 1880–1920 immigration raised income per capita 8.2% by 1940 (skills ~¾ of the effect; settlement geography ~2%); removing the 1921/1924 quotas would have added only ~1.7% by 2000. Flagged as model-based, speaking to the long-run growth margin rather than native-wage substitution. 3. **`acs-2025-release-delay-disclosure-avoidance`** (revised) — ACS 2025 still delayed; Census now says it's "seeking DAO-compliant solutions... later this year"; 100+ organizations petitioned Commerce; and the new Sept 10 proposed 2030 census rule would exclude non-citizens without green cards from the apportionment base — a future measurement break for this topic's core data. **Watch registered:** 2030 census residence-criteria rule (comments close Oct 13, 2026) — fires on finalization, withdrawal, or litigation. **Watches checked, none fired:** The First Circuit hasn't ruled on the merits of the $100k H-1B fee (only the July 24 stay denial, per USCIS); the Sept 9, 2026 "final rule" turned out to be the unrelated 9-11 Biometric Fee, so the DHS $103,265 rulemaking is still pending. The Wilson-Zhou vs. Clemens question thread stays open — no response papers have landed.

The research cycle is complete. This cycle's work in summary: **New evidence pulled forward:** - The full BPEA Fall 2026 conference draft (Hunt, Orrenius & Zavodny) — the first major academic replication of the post-pandemic surge's labor-market effects — read in full, with its headline results (native wages +0.9%, native employment unchanged, rents +1.6%, GDP +1.5%, 0.4 jobs per surge migrant) and its own testimony on the central estimate dispute. - A major new NBER working paper (Arkolakis, Lee & Peters) on the long-run growth and innovation effects of the Age of Mass Migration, with a quota-acts counterfactual. - October 2026 developments on the federal statistical infrastructure: the ongoing ACS 2025 delay, the stakeholder letter to Commerce, and the proposed 2030 census rule excluding non-citizens from apportionment. **Adjudication status:** Established across the surge literature — no native employment effect, no negative native wage effect, modest rent increases, aggregate wages down partly-but-not-wholly from composition. Contested — the sign of the native wage effect (+1.3% vs. −0.7%) and the mechanism behind the positive estimate. The BPEA authors themselves state the disparity "remains unresolved," and that thread stays open for future cycles to check for response papers or the published BPEA version.