The peer review process can create conflicts of interest because the choice of who reviews a potentially publishable project may show:

Cultured peer review (also known as refereeing) is the method of controlling an author's studious work, analysis, or opinions to the analysis of others who are specialists in the related area, before a document explaining this activity is printed in a magazine, convention procedures or as a book.

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the installment plan of the 1920s, an arrangement that allowed people to buy what they wanted with a small down payment and pay off the rest in monthly installments, provided americans a way to own what they did not have the money to buy.