Economic arguments favoring increased immigration restrictions suggest that immigrants undermine the culture, institutions, and productivity of destination countries. But is this actually true? Nowrasteh and Powell systematically analyze cross-country evidence of potential negative effects caused by immigration relating to economic freedom, corruption, culture, and terrorism. They analyze case studies of mass immigration to the United States, Israel, and Jordan. Their evidence does not support the idea that immigration destroys the institutions responsible for prosperity in the modern world....