In the space of 12 months, talent has gone from an acknowledged difficulty to the defining challenge of UK insurance. Talent attraction and retention have surged from seventh place last year to become the top business challenge for UK insurers in 2026, according to Gallagher Bassett's The Carrier Perspective: 2026 Claims Insights report, with 72% of UK respondents reporting greater difficulty in finding qualified candidates and 48% highlighting acute shortages in claims management and adjusting. Nearly a quarter of UK insurers have identified it as their single top concern - ahead of premium affordability, regulation, and everything else.
The timing of this crystallisation is instructive. The junior hiring decline that underpins the talent shortage has been building since 2022, accelerating through 2023 and 2024 alongside two parallel developments: the rapid deployment of generative AI tools and the permanent normalisation of hybrid working arrangements. Most commentary in the industry has emphasised AI as the structural cause. A major new working paper published in May 2026 by researchers at the University of Warwick, the London School of Economics, and Oxford's Ellison Institute of Technology argues that this attribution may be precisely backwards.
The paper - The Broken Ladder: AI, Remote Work, and Early-Career Hiring, by Peter John Lambert and Yannick Schindler - draws on 243 million new hire records and 407 million job postings across the US, UK, Canada, and Australia between 2017 and 2025. The UK is one of the four countries studied. When the effects of AI exposure and WFH exposure are measured separately, both appear to predict falling junior hiring. When measured together, the WFH effect holds and the AI effect collapses. The UK event-study data shows junior hiring falling roughly 10 percentage points below the 2019 baseline by 2025 - more steeply than any of the other three countries.
Junior hiring decline, 2017–2025
Junior share of new hires has fallen sharply across all four countries
Percentage-point change from 2019 baseline — United States, United Kingdom, Canada, Australia
Dashed lines mark COVID-19 onset (Q1 2020) and ChatGPT release (November 2022). Series are quarterly, seasonally adjusted, reweighted to hold occupation mix constant at the 2019 US distribution. Source: Lambert & Schindler (2026), The Broken Ladder; Revelio Labs.
The UK insurance market faces a set of structural pressures that make the junior pipeline particularly fragile. A talent shortage is looming for UK brokers as young recruitment falters, with analysis showing that more than one quarter of UK insurance staff are already over 50, according to RSM UK's analysis of the sector's demographic challenge,, and the London Market Group reporting that the over-50s and under-30s now each account for roughly the same share of the talent pool — signalling a dangerously shallow bench of emerging leaders.
The Chartered Insurance Institute's New Generation Underwriting group has published research into the market's talent shortage crisis, with CII president Ian Callaghan encouraging those in a position to do so to be proactive, forward-thinking, and innovative in their talent attraction strategies. The report identified barriers to entry and noted the longstanding impression of insurance as a steady rather than exciting career - but the structural issue runs deeper than perception. Graduate vacancies across the sector fell 18% in 2025 even as the industry publicly called for more entrants.
The London market is particularly exposed. A significant proportion of its most specialised professionals - property risk engineers, complex liability underwriters, marine specialists — are at or approaching retirement age. The institutional knowledge embedded in those individuals was built over decades of in-person apprenticeship: observation, mentoring, exposure to edge cases and catastrophe events that cannot be replicated in any classroom or training programme.
The Lambert-Schindler paper is specific about the mechanism by which WFH suppresses junior hiring. As supervision costs rise and on-the-job learning rates fall, the rational firm tilts its hiring toward workers who have already built their capabilities under prior, more proximate conditions. In the context of the London market - where underwriting, broking, and claims expertise are among the most specialised in the world - this tilt is especially costly. The expertise that experienced London market professionals carry cannot be easily codified, digitised, or transmitted remotely. It accumulates through years of co-location: in the Lloyd's underwriting room, in broker meetings, in the informal exchanges on which complex risk placement has always depended.
Gallagher Bassett's Sarah Penny noted that hybrid work models have become a baseline expectation for attracting talent, helping organisations tap into a wider geographical talent pool. That is accurate and important. But the same arrangements that attract experienced candidates by offering location flexibility undermine the development conditions that make hiring junior candidates worthwhile. This tension — offer flexibility to attract experience, lose proximity needed to develop juniors — is the core of the broken ladder dynamic.
The paper's finding that the UK shows the steepest junior hiring decline of the four countries studied is consistent with the London market's particular combination of high WFH adoption in knowledge-intensive financial services roles and a historically strong apprenticeship model for specialist expertise. When that apprenticeship model is disrupted by hybrid arrangements, the harm is proportionately greater than in markets where expertise is less concentrated and knowledge transfer less dependent on co-location.
That extended ramp-up time is itself a product of hybrid working. Junior claims handlers learning their craft in a distributed team receive less incidental feedback, observe fewer interactions between senior colleagues and complex situations, and develop professional judgement more slowly. The consequence - which the Lambert-Schindler paper's model predicts directly — is that firms raise their experience threshold for new hires, because junior candidates under hybrid conditions represent a longer and less certain investment. Graduate vacancies fall. The pipeline thins.
The Lambert-Schindler paper is explicit that its findings are cause for optimism precisely because WFH, unlike AI substitution, is a problem that organisations can address. Several practical steps follow directly from the research and from the UK insurance sector's own documented experience.
Hybrid policies should differentiate explicitly between career stages. There is a persuasive case - supported by both the academic evidence and by UK insurance practitioners' own experience - for expecting predominantly in-person attendance from staff in their first two years of a complex technical role. This is an investment in the junior professional's development, not an arbitrary constraint.
Mentoring and structured development programmes need to be treated as operational commitments, not goodwill gestures. The CII, the MGAA, and individual firms have all invested in mentoring initiatives, but the investment needs to be proportionate to what is being lost. A junior underwriter learning from a retiring specialist who works from home three days a week is receiving, at best, a partial version of the development that full co-location would provide.
Finally, UK insurance employers should audit whether their junior hiring decline is tracking AI deployment or hybrid adoption. The answer, for most firms, is likely to be more clarifying than expected — and more actionable. The ladder is broken. It can be fixed.
Peter John Lambert is at the University of Warwick and the London School of Economics. Yannick Schindler is at the Ellison Institute of Technology, Oxford. The Broken Ladder: AI, Remote Work, and Early-Career Hiring was circulated in May 2026. Insurance-specific data sourced from Gallagher Bassett Carrier Perspective 2026, CII New Generation Underwriting, London Market Group, RSM UK, and cited Insurance Business UK reporting.