As CEOs or board members, women are still underrepresented, and that gap is actually growing.

Not only do we need more women in the technology sector, we also clearly need to refocus energy on improving gender equality in the global economy.

If you look around Booking.com, it's a very gender-balanced company.

I think companies need to take more ownership over the gender gap themselves because if everybody does that, then overall, it will improve.

I think that in a year I may retire. I cannot take my money with me when I die and I wish to enjoy it, with my family, while I live. I should prefer living in Germany to any other country, though I am an American, and am loyal to my country.

The bottom line is, don't be a lifer. Get in, get a business, get five years of what you can, and get out. What happens is they start listening to the promoters, 'You'll get the next main event.' And then, all of a sudden, you become a lifer. That's the kiss of death there. Get in shape, go in, get the money, get out, and have a wonderful life.

If we did go into a recession, something that's always possible for the U.S. or Europe, we could lower interest rates and expand the money supply without worrying about the price of gold.

Nowadays, you don't need to live in a fashion capital of the world, have lots of money, or be able to shop during certain hours. With online retail, it's possible to browse and shop for fashion anytime of the day, from pretty much anywhere.