I would use the power of procurement, I would say if you want to do business with the mayor of London, you must pay your staff a London Living Wage.

London has always been open to trade, people, ideas. We have to keep that. I want to compete not just with New York, Paris, Berlin... the ten fastest growing cities in the world are in China. How do we compete with them? We have to attract investment and we have to compete on skills.

Raising the congestion charge won't necessarily make a difference. Rather than increasing the amount you pay in congestion charge, we should be thinking about an ultra low emission zone. We should penalise those cars who are the biggest polluters and reward cars that don't, like electric cars.

My biggest concern is security and keeping Londoners safe.

What London wants is a champion, a fighter for London. It doesn't want a patsy of George Osborne or David Cameron.

The worst thing for worker's is their bosses business going out of business.

We need to make it safe to cycle across London. Why not pedestrianise parts of London like Oxford Street and Parliament Square? I intend to plant 200 million trees across London in my term as mayor.