Meanwhile, SOEs were growing in emerging markets, challenging the idea that public companies are the biggest fishes in the sea.
Private-equity firms flourished in the West, challenging the idea that public companies are the best managed.
Now they are challenging the idea that the only job for outside investors is to write checks.
Such a move would be Mr. Kellogg's boldest stroke by far, challenging the idea of the urban arts complex.
Finally, Dr. Rommel said, the research is challenging the idea of homoiothermy, one of biology's most basic tenets.
He tells the Labour delegates that they deserve credit for challenging the idea that politics does not matter.
Nowadays, she sees herself as a pioneer, challenging the idea that women should be passive and subservient.
Challenging the idea of "normal" and also pointing out how similar the penis and clitoris are can be helpful.
Challenging the idea of peak oil, Bower suggests that the supply of new oil is restricted through complex manipulations by traders who benefit from artificial scarcities.
"We're challenging the idea that being wildly profitable and being ethical are mutually exclusive," Ms. Salim said of her company, C Suite Apparel.
Only in recent decades has evidence-based medicine emerged as an important movement in health care, challenging the idea that the doctor always knows best.
