Originally Posted by N1234

There are two aspects to globalization - at least the way I understand it.

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Aggregate "Satisfaction" - PBS also tries to achieve a global optimum in terms of line satisfaction. Not sure that is the offical term but that's probably the best way to describe it.

Let's assume a simple example with only two lines.

Line 1 (senior) has only pairings from layer 1.
Line 2 (junior) has only pairings left from layers 6 and 7

Let's assume that you switch out one or two pairings from line 1 and and instead of assigning layer 1 pairings assign two layer 4 pairings. And let's furrher assume that this will give enough flexibility to get Line 2 to come up wioth a solution of say layer 2, 3 and 4 pairings instaed of 6 and 7 only.

Then this solution would be preferred by PBS becaus the aggregate satisfaction for lines 1 and 2 is considered higher.

Basically, senior line gets scr ... a little bit but junior line benefits disproportioanlly more than senior got scr ...

The issue is that there is nothing you can really do about it w/o dis-abling "globalization"