What's the first thing you learn in Economics 101?

Antoine Augustin Cournot

Demand

Web Traffic data provided by Alexa.com

Supply


Price

A reader from Calculated Risk commented on testing Alexa's web traffic statistics for Realtor.com. I included Ziprealty.com in the mix, plotted the recent Existing-Home Sales Data provided by the National Association of Realtors and included a chart from S&P/Case-Shiller (HPI) for a simple,—yet interesting comparison.



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