Niklas Zennstrom

If you want to be an entrepreneur, it's not a job, it's a lifestyle. It defines you. Forget about vacations, about going home at 6 pm - last thing at night you'll send emails, first thing in the morning you'll read emails, and you'll wake up in the middle of the night. But it's hugely rewarding as you're fulfilling something for yourself.

When ministers in this government talk about investing in education and skills, about making the planning system work; about employment law reform and delivering transport and power generation and broadband communication infrastructure, we are talking about raising Britain's productivity.