The article studies the causes of local and nonlocal interlocking dire
ctorates among the largest U.S. industrial corporations in 1964. The a
uthors hypothesize that interlocks are spatial phenomena-with spatial
attributes and spatial determinants. Consistent with this hypothesis,
they find that local and nonlocal interlocks have different correlates
. Further, three spatial structures influence interlocking: the locati
on of a corporation's headquarters vis-g-vis other corporate headquart
ers and upper-class clubs, the territorial distribution of a firm's pr
oduction facilities, and the spatial configuration of a corporation's
ownership relations. This suggests that previous interlock research, w
hich ignores spatial considerations, has been seriously misspecified.