Andrew Barnes

Pioneer of the 4 Day Week revolution.


Thinkers50 Radar Class of 2024.


The 4 Day Week was shortlisted for the 2021 Business Book Awards.


Listed as Forbes’ inaugural Future of Work 50, 2022.


Considered the architect of the global 4 Day Week movement, Andrew champions the benefits for companies and employees in reducing the traditional five-day working week to four. He first conducted an experiment in his own business, New Zealand trust firm Perpetual Guardian, by asking his employees to design a working week that would allow them to meet their current productivity requirements and retain the same salary – but with a 20 per cent cut in hours. The results were dramatic: people were happier, healthier, more focused and productive at work, and more engaged in their personal lives. Andrew argues that the four-day work week can solve many of the problems in today’s world of work, including work-life balance, optimal productivity, carbon emissions, worker benefits, and inequalities such as the gender pay gap and lack of diversity in business and governance. 


Founder of Perpetual Guardian, New Zealand’s largest corporate trustee company, Andrew made international headlines in 2018 with his four-day working week experiment. Co-founder (with his partner, Charlotte Lockhart) of 4 Day Week Global, he went on to spearhead the largest ever global trials, which took place in over 250 companies across the UK, US, Canada, South Africa, Ireland, Australia, and New Zealand, in combination with a global research programme involving academics from Boston College, Oxford, and Cambridge. Andrew has served as an advisor to governments that are effecting change to their way their populations will work now and in the future. He sits on the advisory boards of both the US and Ireland 4 Day Week campaigns and on the board of the newly created Wellbeing Research Centre at Oxford University. Andrew is also a founding member of the World Wellbeing Movement.


The 4-Day Week: How the Flexible Work Revolution Can Increase Productivity, Profitability and Well-Being, and Create a Sustainable Future (with Stephanie Jones, Hachette, 2020). The Four-Day Week (TEDx Talks Auckland, January 2019); Is a 4-day week the future? (live-streamed at Selwyn College, Cambridge, February 2023); The 4 day week South Africa 2023 trial results; The 4 day week Australia/New Zealand 2023 trial results; The 4 day week 2023 UK trial results; The 4 day week USA/Ireland trial results; The 4 day week long-term results.

NATIONALITY: New Zealander

Media picks


Andrew’s ground-breaking trials of the 4 day week have had a global impact on the future of work.”

Stuart Crainer & Des Dearlove, Thinkers50

Subscribe to our newsletter to keep up to date with the latest and greatest ideas in business, management, and thought leadership.

*mandatory field

Thinkers50 will use the information you provide on this form to be in touch with you and to provide news, updates, and marketing. Please confirm that you agree to have us contact you by clicking below:

You can change your mind at any time by clicking the unsubscribe link in the footer of any email you receive from us, or by contacting us at . We will treat your information with respect. For more information about our privacy practices please visit our website. By clicking below, you agree that we may process your information in accordance with these terms.

We use Mailchimp as our marketing platform. By clicking below to subscribe, you acknowledge that your information will be transferred to Mailchimp for processing. Learn more about Mailchimp's privacy practices here.

Privacy Policy Update

Thinkers50 Limited has updated its Privacy Policy on 28 March 2024 with several amendments and additions to the previous version, to fully incorporate to the text information required by current applicable date protection regulation. Processing of the personal data of Thinkers50’s customers, potential customers and other stakeholders has not been changed essentially, but the texts have been clarified and amended to give more detailed information of the processing activities.

Thinkers50 Awards Gala 2023

Join us in celebration of the best in business and management thinking.