Depends, if its foreign ventures, your costs will definitely increase. Many corporations and business pay foreign workers a lot cheaper, but if a business was to act ethically, the costs of paying the workers will definitely increase and decrease your profits.
I think there are a variety of options to discuss this topic. I found some interesting disadvantages and case studies on this site that might help you:
I have used this site a few times and it always helps me get started on my papers.
you could be too biased and therefore not willing to give each proposal a go?
i have no idea what i'm saying :L sorry