The debate over hybrid working has mostly been argued in terms of employee preference — who wants it, who resists it, who mandates a return. New economic modelling published on September 24 reframes the question entirely: according to analysis by International Workplace Group (IWG) and Arup, hybrid working's biggest productivity prize may not be happier staff at all, but staff who simply stay.
The modelling estimates that improved employee retention associated with more flexible working practices could be worth $204.7 billion to the US economy and £10.8 billion to the UK over five years. Retention, the researchers say, represents the largest potential source of productivity gains they identified — bigger than any direct output effect of where people sit.
Why keeping people is a productivity strategy
The argument runs deeper than saving on recruitment fees. When employees stay, organizations retain experience, accumulated knowledge and established productive capacity that would otherwise walk out of the door. IWG and Arup estimate that reducing the disruption caused by the loss of organizational knowledge alone could contribute $65.5 billion in productivity gains in the US and £5.7 billion in the UK over the five-year period.
Anyone who has watched a team lose its most experienced member knows the cost is not just the months spent hiring a replacement. It is the stalled projects, the repeated mistakes, the client relationships that need rebuilding, the informal know-how that never made it into a handover document. The modelling attempts to put a number on that familiar experience — and the number is large.
The analysis breaks the retention dividend into further components. Improved talent attraction — the ability to recruit from a wider geographic and demographic pool when location matters less — could contribute a further $98.3 billion in the US and £6.5 billion in the UK. Efficiencies in recruitment and onboarding are estimated at $9.4 billion and £600 million respectively. Together, the figures present flexibility not as a perk but as an economic input with measurable returns.
Flexibility is now a hiring battleground
Separate research cited by IWG suggests flexibility has become a decisive factor in the competition for talent. Some 81% of chief human resources officers surveyed said hybrid working was important for retaining top talent, while 86% identified flexible working as the benefit most sought by prospective employees.
The competition is sharpest for scarce skills. The company reports that hybrid working has become the most commonly cited strategy among employers competing for technology workers: 37% of business leaders surveyed identified hybrid or flexible working as a means of attracting tech talent, compared with 35% who cited competitive pay. When flexibility outranks salary as a talent magnet, it stops being a concession and becomes strategy.
For workers weighing job offers across the US, UK, Canada, Australia and Western Europe, the implication is practical: flexible arrangements are increasingly negotiable, and increasingly normal to ask for. For employers, the corollary is that rigid mandates carry a price that may not show up in any single quarter's figures — it shows up in attrition.
The office's purpose is changing
The IWG/Arup findings land alongside a broader shift in why people go into offices at all. A September report from Stagwell's Harris Poll for Logitech, surveying 1,700 workplace decision-makers across 11 markets including the US, UK, Canada, France, Germany, Singapore and the UAE, found the primary drivers for office attendance are being reordered.
Meetings remain the top stated reason for going in (46% today) but are expected to fall to 35% in the future. Connecting with colleagues rises from 39% today to a projected 42%, while showing up because of a policy requirement drops from 29% to 23%. Training (27% to 31%) and using specialized spaces such as labs and 3D printing (23% to 33%) both climb. The office of the near future, in other words, is less a place for scheduled meetings and more a place for human connection, learning and equipment you cannot fit at home.
The same Harris Poll research highlights a mundane but costly productivity drain: office technology problems. Nearly three-quarters of respondents experience them sometimes and 30% very often, with an estimated 16 minutes of productivity lost each time they occur. And only 27% of organizations treat the "workplace experience" as a core business strategy — suggesting most employers are under-investing in the very environment they are asking people to return to.
What employers should take from this
Read together, the two September reports point in the same direction. The productivity case for hybrid working no longer rests on contested studies of output per hour at home versus in the office. It rests on something more durable and easier to measure: whether good people stay, whether replacements can be found, and whether the office earns its commute.
That reframes the decisions facing leaders. A hybrid policy designed around retention looks different from one designed around surveillance or symbolism. It means flexibility with genuine autonomy rather than rigid two-day mandates, investment in the office as a place worth visiting — reliable technology, spaces built for collaboration and learning — and attention to the onboarding and knowledge-sharing practices that determine how much institutional memory survives each departure.
It also reframes the cost conversation. Return-to-office mandates are often defended as productivity measures, but if the IWG/Arup modelling is even broadly right, the attrition they trigger may cost multiples of whatever collaboration gains they deliver. Productivity, in this framing, is not about where work happens on a Tuesday. It is about whether the people doing the work are still there in two years.
As with any economic modelling, the headline figures should be read as estimates rather than promises — they depend on assumptions about adoption rates and the value of retained knowledge that reasonable people can dispute. But the underlying mechanism is hard to argue with: experienced people who stay are more productive than the vacancies they would leave behind. In the autumn of 2026, that may be the most solid productivity insight the hybrid debate has produced.
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