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.
Although degrees in investments and banking may be difficult to find, many programs have specializations in these areas as part of other programs. Finance, accounting and business are the most likely choices, but investment firms and banks may also be pleased to see degrees in economics, mathematics or engineering.