1.Internal Revenue Service (2009).
4.Anderson et al. (2010).
1.A more formal and detailed explanation of this process is available in Naghshpour (2012).
2.Interested readers should consult Naghshpour (2012) for more detailed discussion of the topic.
3.For more detail refer to Naghshpour (2012).
4.For the sake of this example, we use the national income that is obtained from http://www.bea.gov/histdata/Releases/Regional/2010/PI/state/preliminary_March-23-2011/SA1-3.csv. The data on education, which are in 1,000s, are obtained from http://www.census.gov/hhes/socdemo/education/data/cps/historical/index.html.
5.There is not enough ...