1/2 To underscore the anti-immigration bias (i.e. studies focusing on oppositional attitudes) in the social science literature, 'anti-immigration' turns up 42,500 Google Scholar results. 'Pro-immigration', in contrast, turns up just 6,040 results.
2/2 Google Ngrams appears to show a similar ratio 
3/3 As I've previously argued, this is puzzling insofar as pro-immigration attitudes are fairly exceptional globally (and thus one would think they'd attract much greater scholarly attention). One possibility, which I consider likely, is that social-scientists tend to..
4/4 ..to be pro-immigration themselves and thus view resistance to immigration as the real 'mystery' to be solved. Consequently, we know far less about the factors underpinning pro-immigration orientations (though I'm hoping to break some ground in my dissertation).
As an addendum..
