Piss-Poor Study Finds No Effect of Immigration on Employment (Scroll down.)
it does suggest that a "study," no matter how infantile its design, can gain national exposure...if it sounds the right theme...The paper is something you might expect from a precocious high-schooler who doesn't have the necessary background in statistics to design a more robust study.
This post contains more intellectual activity than do the fifteen or so immigration enthusiast blogs I have seen commenting on the study combined. Not one seemed concerned with the wage level issue. This outrages some of those posting comments - as for example the first comment here.