Sunday, February 13, 2011

What I did this weekend (the internet is both a blessing and a curse)


Here is some comparison shopping I'm doing. These scatter plots are based on listings on cars.com, ebay, autotrader.com, carsdirect.com and vehix.com listings of the cars between 0 and $8000 dollars:




Update:

Another metric for comparison shopping.


I think this counts as the interaction effect: