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.
The common income is typically high with both degrees, but a finance degree is somewhat better. People with economics degrees will typically make around $70,000 to $115,000 at their peak. If you have a finance degree, then you can expect around $65,000 to $170,000.