Katherine Eriksson is an economic historian who received her Ph.D. in Economics from UCLA in 2013. One strand of her research has focused on the immigrants during what is known as the "age of mass migration" in the US between 1850 and 1930. Looking at this time period, a time with no restrictions on who was allowed to come, she is able to answer "who came?" and "how did migrants assimilate in the US?". By studying the performance of past immigrants, we can learn something about immigration today. A second strand of research concerns the origins of black-white disparities in education, health, and incarceration, looking at the first half of the twentieth century U.S.