The "Great Rethink" framing makes a useful question vague. The useful version is sharper: which policy reforms have been tested at scale, in jurisdictions whose labor markets look at least partly like ours, and produced effects large enough to be worth the political cost of importing them? When you ask that question, the field of plausibly transferable reforms narrows quickly to about half a dozen. Most of the rest is either too embedded in a different welfare-state architecture to translate (Scandinavian universalism) or too recent to evaluate (most U.S. state experiments). Naming which reforms are in the first bucket is the actual work.
Paid family leave, predictable scheduling laws, pay transparency, sectoral bargaining, the four-day week, and portable benefits are the six reforms with both serious evaluation data behind them and at least one credible U.S. proof-of-concept. Each is at a different stage of evidence, and they should not be lumped together as a single "progressive policy package."
The reforms with real evidence behind them
Paid family leave is the clearest case. California's Paid Family Leave program, in effect since 2004, has been evaluated repeatedly — by Maya Rossin-Slater (Stanford), Christopher Ruhm (UVA), and others — with findings that include increased leave-taking by both mothers and fathers, modest improvements in maternal mental health, modest improvements in long-run child outcomes, and no measurable employer harm. New York, New Jersey, Rhode Island, Washington, Massachusetts, Connecticut, Colorado, and Oregon have all since followed with state programs. The OECD Family Database shows the U.S. remains the only OECD country without statutory paid maternity leave at the federal level. The evidence base for a national program is at this point as strong as workforce policy evidence gets.
Pay transparency has moved fast. New York City's pay-range disclosure law took effect in 2022; California, Colorado, Washington State, and Illinois followed. The EU Pay Transparency Directive, adopted in 2023 with member-state implementation deadlines through 2026, is the most comprehensive global experiment. Early evidence — work by Zoë Cullen (Harvard) and Bobak Pakzad-Hurson (Brown) — finds that pay transparency reduces within-firm pay dispersion and modestly reduces the gender pay gap, with a small but real productivity cost from "wage compression" effects. It is not a free intervention, but the effects are real.
Predictable scheduling laws (Oregon since 2018, Seattle since 2017, San Francisco since 2015, NYC since 2017, Chicago since 2020) require advance notice of shifts, predictability pay for late changes, and access-to-hours for existing employees before new hires. The University of California San Francisco's Shift Project has been the primary evaluator. Their findings: real reductions in worker schedule volatility, modest improvements in sleep, mental health, and family conflict measures, and no measurable employer-level harm. The implementation cost is also modest.
The reforms with promising but thinner evidence
The four-day workweek has had the most-publicized recent trial. The 4 Day Week Global / Cambridge / Boston College pilot of 61 UK companies (2022) published results showing 1.4% average revenue growth over the trial, 57% drop in voluntary attrition, and 56 of 61 companies continuing the policy after the trial. Smaller pilots in Iceland (public sector), Portugal, Belgium, Japan (Microsoft pilot), and a number of U.S. private-sector employers have produced broadly consistent results. The catch is that the trials are observational — there is no randomized comparison group — and most participants were knowledge-work firms with discretion to cut meetings. Generalizing to manufacturing or healthcare requires more evidence than currently exists.
Sectoral bargaining — where wages and conditions are negotiated industry-wide rather than firm-by-firm — is the European model with the most credible large-scale evidence. The OECD's Negotiating Our Way Up (2019) and follow-on work documents that countries with coordinated sectoral bargaining have lower wage inequality and comparable employment outcomes to enterprise-bargaining systems. The U.S. proof of concept is California's 2023 Fast Food Council under AB 1228, which set a $20/hour wage floor for the sector. Early effects are still being studied; UC Berkeley's Labor Center has the most rigorous evaluation underway.
Portable benefits — benefits that follow the worker rather than the employer — are the most American-friendly of the gig-economy reforms because they preserve the contractor classification many platform workers prefer. Washington State's January 2025 portable benefits framework is the most comprehensive U.S. proof of concept. The NWLB Gig Economy Settlement → pillar covers this terrain in detail, including the comparison with California's PAGA route, the UK's Uber BV v. Aslam (2021) ruling, and the EU Platform Work Directive of 2024.
What the U.S. is not ready for, and what that costs
Some of the reforms in the progressive policy menu are unlikely to clear U.S. political constraints in the next decade. Universal childcare at the OECD median price (the OECD Family Database puts U.S. childcare costs at roughly twice the OECD average as a share of household income) is the largest single missing intervention. Federally guaranteed paid sick leave for the lowest-wage workers, who disproportionately lack it, is the second. Universal healthcare detached from employment is the third — and is probably the most consequential structural barrier to labor-market flexibility in the U.S., though it rarely gets framed that way.
The implicit cost of these gaps is measurable. Claudia Goldin's research on the gender wage gap concludes that the persistence of the gap is almost entirely a "greedy work" problem — that childcare and caregiving distribution depress women's earnings in ways that more flexible employer policies and serious childcare investment could address. The U.S. has chosen to leave most of that gap intact. It is a policy choice, not a market outcome.
What honest reform looks like
An honest progressive work policy agenda for the U.S. in 2026 would (1) finish the federal-level paid family leave conversation, (2) extend pay transparency and predictable scheduling to states that have not yet adopted them, (3) build portable benefits frameworks for the platform economy in the model Washington State has piloted, (4) treat childcare as workforce infrastructure rather than family policy, and (5) test sectoral bargaining in additional industries beyond fast food. None of those require inventing new policy. All require the political will to scale interventions that have already been tested.
The "Great Rethink" should be a great copy-paste from the evidence base. The reason it has not happened is not because the evidence is missing.
Most "progressive work policy" in 2026 is not progressive in any ideological sense. It is just the evidence base, finally being implemented — fifteen to twenty years after the studies that proved it works.
Updated May 21, 2026. This piece was substantively rewritten as part of NWLB's 2026 editorial refresh.
