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.
Not only do finance majors command decent starting salaries, but they are also in demand: The National Association of Colleges and Employers reports that graduating students with bachelor's and master's degrees related to business were the most wanted graduates in the U.S. economy in 2013.