Logo, Micheal R. Baye, John Morgan, Patrick Scholten

Indices Graph

These data are from a real-time project with John Morgan and Patrick Schoten that ended when Baye went to the Federal Trade Commission.

measure 1: measure 2: time span:
automatic graph

Internet Indices as of June 30, 2007

IndexThis WeekLast WeekChange% Change
Price Range40.8340.340.491.21
Relative Dispersion10.0410.020.020.20
Value of Information16.4016.220.181.11
Price Gap1.841.92-0.08-4.17
Internet Competitiveness101.3299.821.501.50
Market Thickness Index122.81125.71-2.90-2.31

 Relative Dispersion This Week:
Relative Dispersion in prices increased to 10.04 percent this week. The standard deviation in prices is now 10.04 percent of the average price charged.

 Did you know?
This research is featured in the Wall Street Journal, New York Times, and Forbes. Information about these articles is contained under selected media coverage.
 What is Relative Dispersion?
Relative Dispersion is the coefficient of variation in prices charged by different sellers for the same products. It is zero when all sellers charge the same price for a product.

 Tip for users:
You may click a measure in the above table to graph its historical values, or click a column header to sort values.