Unsurprisingly, the companies that received the most positive coverage had performed well before the stories were published: their share prices had, on average, outperformed the index by 42.7% once adjusted for sector and size.

ECONOMIST: Buttonwood

This law states that if you have the same good in two different locations, and their prices once adjusted for currency exchange rates are different, the market will tend to pull the prices back towards parity.

FORBES: Mitt Romney Is Tough On China, Weak On Reality

So once you adjusted for the lack of reading and mathematics, the pay gap would disappear.

FORBES: Is Gender Pay Gap A Myth?