Most of the world's innovations and new ideas come from the seven most innovative countries. Weakening the institutions of these countries, even slightly, through ill-timed migration policies, would harm the entire world. Studies in the US, UK and Germany show that the propensity to save of second-generation migrants can be predicted by the savings rate in their country of origin. A high propensity to save is a signal of foresight, of good planning, traits crucial to a modern economy. Studies indicate that the places to which Europeans moved after 1492 (referred to as Neo-Europeans, e.g. North America, Australia, New Zealand) became economically similar to the places they left. A similar phenomenon was observed in the case of Chinese migration to Southeast Asia. This observation, known as Deep Roots literature, shows that culture is transplanted and persists, changing productivity in the destinations. Institutions are not "carved in stone" and are constantly subject to discussion and change. Migrants are not only workers, but also "people" (and often voters) who influence the political and institutional system. The question "why do institutions differ so much from country to country?" finds its answer in the culture that migrants carry. Migrants and their descendants are not politically passive. Attitudes about generalized trust (whether strangers can be trusted) also migrate. For example, people of Mexican descent in the US seem to import the lower level of trust that exists in Mexico. Generalized trust is important because it facilitates many economic transactions. It is important to remember that if migrants come from less productive countries, there is no guarantee that they will automatically assimilate to the higher productivity of the host country. Full assimilation is often a myth. In short, historical and contemporary migration inevitably shapes the wealth of nations by changing institutional, cultural and political structures. An interview with Garett Jones on his book "The Culture Transplant," which analyzes the economic impact of immigrant culture on host countries. Jones argues that cultural migration has a significant and long-lasting impact on economic institutions and levels of prosperity in new places of residence, often making those economies resemble the ones the migrants left (the so-called "Deep Roots" literature).