The primary objective of the Doing Business North America report is to provide a measure of the ease of doing business for cities in North America. At least one city per state or province was scored. The District of Columbia was included as well. For states with much larger populations than average, more cities (up to four of the largest in the state or province) were included. The Ease of Doing Business Score is derived from a summation of the scores awarded in each of the six categories measured by this report. The Ease of Doing Business Score focuses on the regulatory burdens a small- to medium-sized business would face from the birth of the business to the death of the business in cities across North America. The following explains the process of arriving at the final score.