For centuries, economic thinkers, from Adam Smith to John Maynard Keynes, have tried to identify the elusive formula that makes some countries more prosperous and successful than others. My curiosity about this topic spurred me, as a young professor of economics in the late 1970s, to research new ways of measuring national competitiveness.

It was a hallmark of Nelson Mandela's leadership that being open to change made him appear not weaker, but even stronger.

I am a great enthusiast and early adopter of technology, but sometimes I wonder whether the inexorable integration of technology in our lives could diminish some of our quintessential human capacities, such as compassion and cooperation.

Of all the many leaders I have met in the course of my life, none made a deeper impression on me than Nelson Mandela. His courage, compassion, humility and wisdom were without parallel on the world stage, and he himself was an enduring source of inspiration.

I have a really deep belief that we create technologies to empower ourselves. We've invented a lot of technology that just makes us all faster and better, and I'm generally a big fan of this. I just want to make sure that this technology stays subservient to people. People are the number one entity there is on this planet.

The great thing about having digital comics is that it is like having a comic-book shop on your digital device. It has turned comics from a destination buy to an impulse buy.

I view Bitcoin as the more democratic version of money and value transfer because no one controls it... I expect the Internet to be around longer than any nation-state, so a nation-state-backed currency is actually less safe than an Internet currency in my mind.

I started homeschooling when I was 13. I wasn't really doing the social media thing yet; I didn't have any fans, but I knew that public school wasn't the place for me. It was draining my creativity, and so both my parents supported me in being homeschooled, and they really gave me a chance to focus on getting good at guitar.