The Porter Cluster Model:
of cluster methodology (pdf)
Listing of clusters and subclusters (xls)
Regional definitions and maps:
Metropolitan Areas by State
(The CMP uses the current definition for metro areas
as posted at this Census page.)
Patent data include utility patents issued by the USPTO in the U.S.
Patent data are assigned to regions based on the address(es) of all of
the named inventor(s). Assignments are made fractionally in the
case of multiple inventors.
Using the interactive "bubble" charts:
Rescaling the charts:
The Java Applet charts we use on this site allow you to dynamically
manipulate the appearance of the charts and to zoom in and focus on a
portion of the chart. To zoom in on an area: (1) use the mouse to
position the cursor in the chart, (2) press and hold the left mouse button
while moving the mouse to create a box around a section of the chart, and
(3) release the mouse button to generate the new chart. Use the Page
Up and Page Down keys to zoom out and in. Move the black bars on the
chart axes to scroll to different areas. Click the View Chart button
to redraw the original chart.
Problems with the Java charts? We
tested the charts with the latest versions of Java (v1.5.0 and forward) in the Internet
Explorer and Firefox browsers. If you encounter problems, you may want
to try updating your browser and Java software. In our tests, the
Firefox browser loaded the proper Java versions automatically on the first
visit to the CMP site and operated without error.
Firefox is available as a
free download. Internet Explorer may require manual
updating of Java. Go to the Sun Java download page to get the latest free Java software or to verify
your current Java version.
As an alternative, all charts on the
CMP are available in a non-Java
version by selecting the option "Switch to Image View" at the top of any
chart. This selection
will be remembered throughout your current visit to the CMP site.
The PRINT option in the maroon bar above each chart
provides an enhanced alternative to your browser's standard print function;
it eliminates extraneous text and graphics in the print output.
Glossary of terms used
Michael E. Porter, Cluster Mapping Project, Institute for
Strategy and Competitiveness, Harvard Business School; Richard Bryden, Project
Copyright © 2009 by the President and Fellows of Harvard College. All rights reserved.