When people move from poor countries to America, they quickly adapt in at least one way - their consumption habits.

Charities are now working to give people in poor countries access to the Internet. But shouldn't we spend that money on providing health clinics and safe water? Aren't these things more relevant? I have no intention of downplaying the importance of the Internet, but its impact has been exaggerated.

I don't see why OPEC countries should continue to cut production just to keep the price of oil high. This will not affect the industrial countries alone, it will also hit poor countries in Africa, Asia and Latin America. Who will look after them?

If you neglect those who are currently poor and stable, you may create more poor and unstable people. There has been a tremendous concentration of donor interest in countries that are seen as particularly fragile - but it becomes harder to mobilise money for sub-Saharan, plain poor countries.

Poor countries are poor because they are wasting their resources.

Rich countries have been sending aid to poor countries for the last 60 years. And, by and large, this has failed.

During the Cold War, the U.S. instituted a policy of sending money to governments in poor countries to buy their political loyalty. While studies show that sending aid to foreign governments creates allegiance, it does not lead to economic progress.

It became clear I wanted to be a development economist. I mean, I said I wanted to work on the economics of poor countries. And I'd actually say that I don't think that was so much about narrowing the gap as about increasing their incomes, which means economic growth, which is really my prime interest.

There's no point in treating a currency like a commodity, devaluing it artificially and causing a lot of poverty among poor countries.

Hydroelectric dams remain the way many poor countries gain access to reliable electricity, and both solar and wind might be worthwhile in some circumstances. But there is nothing in either their history or their physical attributes that suggests solar and wind in particular could or should be the centerpiece of efforts to deal with climate change.