An example of a natural experiment occurred in Helena, Montana during the six-month period from June 2002 to December 2002 when a smoking ban was in effect in all public spaces in Helena including bars and restaurants.
A master's degree in finance can be earned in one to two years or less after completing a bachelor's program. Doctorate programs with a focus on finance take approximately four to six years to complete and require at least a bachelor's degree--though a master's degree is a more common requirement.
Finance considers the relationship of money to time and risk. One of the main subsets of finance is the study of credit and banking, as this involves money, time, and risk all together. Finance may deal with personal or corporate issues, such as how will an individual or company acquires the money needed to perform a certain act.