To break up or dismantle cartels and restore competition in an industry or market.
From 'de-' (remove) + 'cartel' + '-ize' (to make or cause). This verb form emerged in the 1940s-1950s during post-WWII economic reforms and modern antitrust policy.
The European Union's obsession with decartelizing industries explains why you can't buy the same pharmaceuticals or software in Europe and America at the same prices—different decartelization policies created separate markets.
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