Following are the data sets analyzed in the book. Descriptions of these data sets can be found in Chapter 2.

Krackhardt's High-tech Managers

The three relations measured for Krackhardt's high-tech managers are advice (Table B.I), friendship (Table B.2), and reports to (Table B.3).

Table B.4 lists four actor attribute variables for the 21 high-tech managers. The attributes are age (in years), tenure (length of time employed by the company, in years), level in the corporate hierarchy (coded 1,2,3), and department of the company (coded 1,2,3,4).

Padgett's Florentine Families

The two relations measured for Padgett's Florentine Families are business (Table B.5) and marriage (Table B.6).

Table B.7 gives attribute variables for the families. Wealth is net wealth, measured in 1427, and is coded in thousands of lira. Number of Priorates is the number of seats on the Civic Council held between 1282 and 1344. And Number of Ties is the number of business or marriage ties in the total network data set containing 116 families.

Freeman's EIES Network

The three relations measured for Freeman's EIES network are acquaintanceship at time 1, January 1978, the start of the study (Table B.8); acquaintanceship at time 2, September 1978, the end of the study (Table B.9); and number of messages sent (Table B.10).