It recommends building an international consensus on the differential pricing of patented pharmaceuticals, meaning that poor countries would have access to expensive drugs at the cost of manufacture, rather than paying the far higher rates charged in rich countries.

ECONOMIST: Patently troublesome

The differential at this scale is nominal, meaning that Google is doing a good job at closing the app download gap.

FORBES: Is Google the New 'Think Different?'

The tax differential between low-tax and high-tax states is widening, meaning that a relocation from high-tax California or Ohio, to no-income tax Texas or Tennessee, is all the more financially profitable both in terms of lower tax bills and more job opportunities.

FORBES: Capital Goes Where It's Welcome