Almost six in 10 managers in transport and logistics have not yet booked any summer holiday, according to the Chartered Management Institute.

Of the most popular reasons given for staying in the office all summer, 15% said that an excessive workload is to blame.

Against a backdrop of financial uncertainty and job insecurity, 38% also said they would rather exchange their holiday entitlement for cash.

To encourage managers to recognise the importance of taking a break, the CMI has launched its Out of Office campaign today and declared an amnesty until July 12, during which British managers are being urged to book some well deserved time off.