I have come across the phrase "economy principle" somewhere I cannot recall, talking about why some combinations of papyrus fragments were made. What is this principle exactly?

**Update**

As I typed it, I was on my mobile and close to bedtime, so I couldn't look for my source. Right now, I opened the book "The newest Sappho" by Anton Bierl and André Lardinois, which I suspected to be the source, and found the following quotes:

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> Only the fragments overlapping with Sappho fragment 9 did not seem to fit physically or textually into this sequence. M.L. West posited on grounds of economy that it should be placed in the missing column between fragment 5 and the Brothers Song. (p. 40)
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> Whether πότνιαι or πόντιαι, it is significant that the placement (indepen- dently, on physical grounds of fiber-matching and the principle of economy) of this fragment at this point in the sequence—results in a continuation of the alphabetic sequence of poems by first letter of incipits in π- (p. 41)
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> […] and, while they could have come before the ο- sequence of incipits, reasons of economy suggest that they came together in the gap between the ο-π sequence of incipits and the final poem […] (p. 45, footnote)
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So that's where I found this principle mentioned.