That’s textbook plagiarism.
Its lazy man’s thinking and you have to be careful when you write to make it clear when someone else wrote something and when its yours.
I don’t have a Ph.D and I knew the rules when I wrote my graduate school thesis. Credit all primary and secondary sources.
When in doubt, always give appropriate credit. No one likes a thief.
We’re guilty of lapses from time to time but repeated plagiarism is a character defect. Crowley shouldn’t have a role in the Trump White House.
No it isn't. Please tell me which idea she "stole" and passed off as her original idea. Ideas in economics that derive from Keynes that she attributes to Keynes? Something Reuters said that she said Reuters said?
Sorry, plagiarism is passing off someone else's original ideas as yours.
There are all kinds of examples where I might learn of a fact or an idea from a secondary source that actually comes from a primary source. The ideas are not the property of the secondary source. E.g. In Washington's farewell address he stated:"...." or "Einstein's theory of relativity presumes: "..."
Now, suppose I wrote "the sun rose in the East at 5:53 AM on June 3, 1917 in Lubbock Texas" which I read in a history book and did not site the history book" but the history book sites the Lubbock Morning Herald of June 3, 1917 reporting that fact. Am I guilty of plagiarism? Well, no. Not only is it not an original idea, it is not even idea. It's a fact, and if you want to attribute the fact to some observer paid to observe these facts, well observer is employed by the Naval Observatory, maintained at public expense, and therefore the information is already owned, freely, by the American public.