[jessetemp]

Sorry to ruin your ruining, but if you read past the abstract and look at the data, you'll see it tends to correlate with whether a democrat or republican is in office. Immigration policy is also mentioned in the discussion.

> Given these findings, a corollary question is what attracts foreign graduate students to the US and leads them to stay. Prior research points to immigration policy—a subject of perennial public interest—having a large effect on stay rates