Can migrations have a positive impact on the people and/or land receiving the immigrants?
While a simplistic question, I will attempt to give an unsimplistic answer. Of course the land receiving immigrants can benefit from their arrival. What does it mean to "benefit" the people/land? America has gotten a great influx of cheap labor from Mexico. This has allowed many Central Valley and other farmers and construction companies to get cheap labor and make a bigger profit. So it is definitely benefiting them, but what about the locals who used to pick the food, it does not benefit them. In the long run, most immigrants offer much needed diversity and a new perspective on issues facing any society. So yes, the people and land that receive migrating peoples can benefit from their arrival. That being said, most of the benefits they receive can be looked at as bad things as well. Cheaper labor accelerates industry... Good for the companies and maybe the economy as a whole, but what about those forced out of work? Immigrants provide new perspectives and may even rise to the top of a professional field. This breaks down xenophobia and offers new insight into certain topics. However, in the moment it often increases xenophobia and the new ideas can be shunned. There are many examples of this that I could go into, but I will leave by just answering the question: migrations can have a positive impact on the people/land receiving the immigrants.