Chained CPI means higher income taxes for middle class

... pays the federal income tax. Many other tax provisions--the standard deduction, the personal exemption, PEP and Pease, IRA and 401(k) contribution limits, and many others--are also tied to how CPI is measured. Chained CPI as a stand-alone measure ...

http://www.americanthinker.com/blog/2013/04/chained_cpi_means_higher_income_taxes_for_middle_class.html