It's markedly more difficult and expensive for even highly skilled individuals to obtain Swiss residency, speaking from personal experience. Unlike the rest of Western Europe where you can claim to be a Dr. Engineer on asylum and become a citizen a few years down the line so that you can threaten Christmas markets and take shits in churches without repercussion in future. Maintaining a low target population helps in the vetting process and ensures companies prioritize skill needs over lowering costs. The drawback here being it becomes more appealing for companies to export jobs abroad, at the citizens' expense.

Another country which has a similar strict immigration regime - Singapore. And for a direct opposite, there's the Gulf countries, which let everyone and their dog in, so that they can be part of the slaving class for the locals.