"The industry is certainly a challenging one to make a business-model rationale for," said Claudine Singer, a research director and senior analyst at Jupiter Research, an Internet consulting company based in New York.
"You've got to have a strong value proposition that provides a clear rationale for pricing," said George Morrow, executive vice president for worldwide sales and marketing at Amgen.
"I feel we are losing completely the scientific rationale for action," said Rajendra K. Pachauri, director of the Intergovernmental Panel on Climate Change, the global body of scientists and statisticians that provides the technical underpinning of the United Nations talks.
"That is my rationale for hope," says MacPherson.
Its handling of non-Sunnis varies — for instance, it's been said that Christians in some areas have been allowed to continue living while paying a tax — but the doctrine of accusing others of apostasy (those who do so are traditionally referred to as Takfiris) underpins the Islamic State's rationale for violence, said Fadel.
Campaigners have taken issue with the government rationale for the project, saying the beetle's presence does not pose any threat to the forest's ecosystem.
My mother seized the opportunity to offer another rationale for wearing braids, saying Draupadi wore her hair loose only when she was her most vengeful.
While it remains unclear what effect the deal would have on gasoline prices, a senior executive involved in the deal provided a rationale for the acquisition, saying, "In the long term, the key to low prices is lower costs".
The spokesman laid down a possible rationale for an assault, saying that the rebels had used the shrine and the cemetery to stockpile arms and ammunition, and were fighting from behind tombs and headstones.
