You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
The Marginals Never Vanished: Incumbency and Competition in Elections to the U.S. House of Representatives, 1952-82
Gary C. Jacobson
American Journal of Political Science
Vol. 31, No. 1 (Feb., 1987), pp. 126-141
Published by: Midwest Political Science Association
Stable URL: http://www.jstor.org/stable/2111327
Page Count: 16
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
The average vote margin enjoyed by incumbent candidates for the U.S. House of Representatives increased sharply during the 1960s. Despite this, and contrary to assumptions common in the literature on recent congressional elections, electoral data show that House incumbents are no safer now than they were in the 1950s, the marginals, properly defined, have not vanished; the swing ratio has diminished little, if at all; and competition for House seats held by incumbents has not declined. Vote margins increased without adding to incumbent security, diminishing competition, or dampening swings because the heterogeneity of interelection vote swings increased at the same time.
American Journal of Political Science © 1987 Midwest Political Science Association