Global inequality widens as some nations with certain cultural traits prosper and others with other traits don't.

The second condition is that a small initial inequality must, over time, widen into a larger inequality.

Twenty-six percent of Indians still live in poverty, and data suggest inequality is widening even as the poverty rate falls.

Despite the boom, inequality has widened.

What is puzzling is why these inequalities have widened over the years.

Clegg: "This inequality of wealth then cascades down the generations, potentially widening the opportunity gap."

As money worship mounted, job security disappeared and inequalities widened, pundits spoke of a new Gilded Age.

But even among people with identical education levels, inequality is widening as the economy favors certain abilities.

After a point, as inequality widened, the bonds that kept our society together would snap.

If enhancements are available only to the better-off nations and individuals of the world, existing social and economic inequalities may widen into chasms.