Immigrants contribute disproportionately to entrepreneurship in many countries, accounting for a quarter of new … employer businesses in the US. We review recent research on the measurement of immigrant entrepreneurship, the traits of …

small business sector's health. Previously this was difficult due to a lack of appropriate data. This paper fills this … QuickBooks Online Payroll subscriber data (QBO Payroll sample) from 333,000 businesses in the US, 66,000 in Canada, and 25,000 in … the UK. After comparing the QBO Payroll sample data to the official statistics, we remove the seasonal components and use …