This content submission has two parts: (1) a link to the post by Wolf Richter on deterioration of US subprime credit card debt and loans, driven in part by the overuse of hedonic quality adjustments in the Consumer Price Index (CPI) used by the US Bureau of Labor Statistics, and (2) to introduce Exploring Economics to the website Naked Capitalism, which is an effort to promote critical thinking through the medium of a finance and economics blog and fearless commentary.