<prompt> Translate the following text to EnglishKama ilivyoelezwa hapo juu, kaskadi ni hali ya baada ya hatua ya uthibitisho ambapo wanafunzi wa wachache waliokataa kuingia katika vyuo vikuu vya ngazi ya juu wanahudhuria vyuo vikuu vidogo.  <response>: An article examines cascading, the post-affirmative action phenomenon in which minority students denied access to top-tier universities attend lesser ones. 