<prompt> Translate the following text to EnglishSasa, hata chini ya sheria ya jadi ya kupambana na ushindani mahusiano ya kipekee si lazima kuwa kinyume cha sheria, tangu wao kufanya uzalishaji na usambazaji ufanisi zaidi.  <response>: Now, even under traditional antitrust law exclusive relationships are not necessarily illegal, since they make production and distribution more efficient. 