As recognized since ancient times, the coexistence of very rich and very poor leads to two possibilities, neither a happy one. The rich can rule alone, disenfranchising or even enslaving the poor, or the poor can rise up and confiscate the wealth of the rich.
The call to rein in globalization reflects a belief that it has eliminated jobs in the West, sending them East and South. But the biggest threat to traditional jobs is not Chinese or Mexican; it is a robot.
Like many in academia and in the development industry, I am among globalization's greatest beneficiaries - those who are able to sell our services in markets that are larger and richer than our parents could have dreamed of.
Globalization and technical change are the guarantee of our future prosperity. And reversing on that will not only make things worse, but it will make things worse for a very large number of people around the world who have benefitted - people in China and India who have been dragged out of the most awful poverty.
China and India are the success stories; rapid growth in large countries is an engine that can make a colossal dent in world poverty.
The best moments are when, together with... you bring information, you bring data to bear in a way that helps illuminate something that you just don't really understand. Even if it doesn't completely clarify it, it just, you know, helps bring it together.
I have the great good fortune that one of my collaborators in work, Anne Case, is also my collaborator in life.
I didn't care for school much - it was very strict, corporal punishment in the form of the 'tawse' was common and unpredictable, and I was often afraid - but I believe that I did well enough; indeed, my mother always regretted that I had not stayed long enough to become the 'dux,' as the best pupil was called.
Trade, migration, and modern communications have given us networks of friends and associates in other countries. We owe them much, but the social contract with our fellow citizens at home brings unique rights and responsibilities that must sometimes take precedence, especially when they are as destitute as the world's poorest people.
I believe, as do most people, that we have an obligation to assist the truly destitute.
Despite broad public support, raising the minimum wage is always difficult owing to the disproportionate influence that wealthy firms and donors have in Congress.
In the high-income English-speaking world, the elderly get treated very well indeed.
The World Bank adjusts its poverty estimates for differences in prices across countries, but it ignores differences in needs.
European countries give much larger shares of aid for poverty relief than the U.S.
When citizens believe that the elite care more about those across the ocean than those across the train tracks, insurance has broken down, we divide into factions, and those who are left behind become angry and disillusioned with a politics that no longer serves them.
Foreign aid, especially when there is a lot of it, affects how institutions function and how they change.
Globalisation, for me, seems to be not first-order harm, and I find it very hard not to think about the billion people who have been dragged out of poverty as a result.
I don't think that globalisation is anywhere near the threat that robots are.
I'm very keen that we have this debate about the good parts of inequality and the bad parts of inequality. It's not a one-sided thing.
International cooperation is vital to keeping our globe safe, commerce flowing, and our planet habitable.