<prompt> Translate the following text to EnglishKwa upande wa Pareto optimality, inaonekana kwamba mabadiliko kutoka nafasi ya sasa inaweka hasara kubwa juu ya baadhi ya mailers, faida kubwa juu ya wengine, na faida ndogo ya wavu.  <response>: In terms of Pareto optimality, it appears that a change from the current position imposes large losses on some mailers, large gains on others, and relatively small net gains. 