As Levinson undertook his research at Princeton he felt that he had little prospects of gaining a university job, partly because of the high unemployment, but also because anti-Semitism in the United States at this time meant that Jewish mathematicians found it much harder than others to get posts.
Bilang Levinson undertook kanyang mga pananaliksik sa Princeton siya nadama na niya maliit na mga prospects ng pagiging isang unibersidad ng trabaho, bahagya dahil sa mataas na kawalan ng trabaho, ngunit din dahil anti-Semitism sa Pilipinas sa oras na ito sinadya na Jewish mathematicians natagpuan ito maraming mahirap kaysa sa iba upang makakuha ng mga post.