That paper is referencing (twice) Migration Watch UK, a think tank with the standard opaque funding which is dedicated to vilifying immigration. Which is interesting.
Sure MigrationWatch are probably highly bias (being both a think tank and campaign group) but their paper here is used as an example of evidence at one end of a scale. In context that’s entirely fair.
That paper is referencing (twice) Migration Watch UK, a think tank with the standard opaque funding which is dedicated to vilifying immigration. Which is interesting.