Regional disparties and prejudicial government policies

There are certain criteria that the Canadian Immigration Department follows when considering applicants. Specifically, besides skill and capital (in the form of investments), familial relations or political reasons among others are also taken into account. That being said, if cases are judged on an individual basis, there may be certain factors within an immigrant's application that will be valued more favorably by the Canadian government. In that case, our focus becomes one that deals with prevalent trends in immigrant admission. However, there could indeed be a link between immigration admission and immigration settlement. One idea I had was what if "prejudices" (if there are any) in the admission process led to sentiments within immigrants that caused them to leave? Within this causal relationship then, the time an immigrant stays within Canada could perhaps be attributed to their perceived level of treatment within the admission process. Just a thought.