Why people have 12 pairs of shoes and no health insurance


Why do people have 12 pairs of shoes and no health insurance? - Perhaps the consumer price index data can help explain it ...

Great minds think alike - I recently saw a plot of the Consumer Price Index (CPI) data that Layne Ainsworth had created, and it reminded me of some SAS plots of the CPI I had created last fall for a talk I gave to the NCSU College of Textiles. Layne's plot has such a great title, I decided to steal it (with his permission, of course) and use it for my blog title! :)

I find CPI data interesting. It basically show how much more (or less) our money buys, over time, for certain things. For example, the CPI for apparel (clothing) shows that prices increased during the 1980s and 90s, and then started dropping in the 2000s. Apparel is quite a bargain these days!


If we also plot the CPI for housing, we can see that housing prices have gone up a lot compared to apparel. So we might be homeless, but we're well dressed. :)


But, how does this tie in to the title ... "12 pairs of shoes, but no health insurance"? When we add the CPI for medical expenses to the plot, we see how the increases in medical cost prices even dwarf the increases in housing costs ...


So, some of you with insight into prices of things such as apparel, housing, and medical expenses - tell us why the CPI data is doing what it's doing in these graphs. Feel free to leave a comment with your theories!



About Author

Robert Allison

The Graph Guy!

Robert has worked at SAS for over a quarter century, and his specialty is customizing graphs and maps - adding those little extra touches that help them answer your questions at a glance. His educational background is in Computer Science, and he holds a BS, MS, and PhD from NC State University.

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