It's an interesting situation because we can pretty much rule out alternatives, such as the student having plagiarized from Gino (2014 v 2016) or both having plagiarized from a 3rd source. This is because there is history of communication between student and Anna that result, step by step, ...

.. in section that appears later in the book by Ariely & Gino. Here the full piece, containing numerous instances. www.science.org/content/arti...

Embattled Harvard honesty professor accused of plagiarism

Academic chapter and two books authored by Francesca Gino appear to copy from sources including student theses, blogs, and news reports