However, the analyses, conclusions, opinions and statements expressed herein are those of the authors and not necessarily those of the College of Nurses of Ontario. [...] An estimated 40% of IENs who apply to the College of Nurses of Ontario fail to complete the registration process and do not enter the workforce. [...] Migration: Canadian and Provincial Contexts Trends in Migration to Canada In the first two decades of the twentieth century, over 80% of the population growth in Canada resulted from immigration. [...] Stock represents the number of migrants present in the workforce at any given time, while flow describes the movement of migrants in and out of the workforce. [...] The importance of immigration will rise owing to the retirement of the “baby decreased demand boomers” in the next decade and the improbability of replacing staff with graduates from for nurses.