Internet technology is making it easier to research this type of data.
External Data: The Distribution System
External data are generated or recorded by an entity other than the researcher’s
organization (e.g., government, newspapers and journals, trade associations, etc.).
Computerized data archives and electronic data interchange make this data as accessible
as internal data.
Information as a Product and Its Distribution Channels
Because secondary data have value, they can be bought and sold like other products.
Libraries
Traditionally, libraries’ vast storehouses of information have served as a
bridge between users and producers of secondary data.
Many major corporations and government agencies also have libraries.
The Internet
Exhibit 8.8 lists some of the more popular Internet addresses where
secondary data may be found.
Vendors
Intermediaries.
Some allow managers to access thousands of external databases via desktop
computers and telecommunications systems (e.g., Hoovers).
Producers
Classifying external secondary data by the nature of the producer of
information yields five basic sources:
1. Books and Periodicals – professional journals and commercial business
periodicals contain much useful information material.
2. Government Sources – most data published by the federal government
can be counted on for accuracy and quality.
3. Media Sources – frequently commission research studies about various
aspects of Americans’ lives (i.e., financial affairs) and make reports of
findings available to potential advertisers for free, often in the form of a
media kit.
4. Trade Association Sources – serve the information needs of a particular
industry (e.g., data on market size and trends).
5. Commercial Sources – numerous firms specialize in selling and/or
publishing information (e.g., Polk Company publishes information on the
automotive field).
Market-Share Data – wholesale or retail sales volume based on
product movement (e.g., INFOSCAN from Information Resources,
Inc, Nielsen’s ScanTrack, and Wal-Mart’s RetailLink).
Demographic and Census Updates – a number of firms (i.e., CACI
Marketing Systems) offer computerized U.S. census files and
updates of these data broken down by small geographic areas (i.e.,
zip codes).