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Cited by 316

The DOI matches its Crossref record; 16 of the 16 references it cites were found in a registry or an index.

The Jeffords Effect

Jayachandran, Seema·2006·The Journal of Law and Economics

Abstract

In May 2001, Senator James Jeffords left the Republican Party and tipped control of the U.S. Senate to the Democrats. This paper uses the surprise event to demonstrate what I term the “Jeffords effect”: changes in the political landscape have large effects on the market value of firms. I use a firm’s soft‐money donations to the national parties as the measure of how the firm aligns itself politically. In this event study, a firm lost .8 percent of market capitalization the week of Jeffords’s switch for every $250,000 it gave to the Republicans in the previous election cycle. On the basis of the point estimates, the stock price gain associated with Democratic donations is smaller than the loss associated with Republican donations, but the estimates are consistent with the effects being equal and opposite. The results withstand several robustness checks, and the effects appear to persist over time.

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Metadata

Authors
Jayachandran, S.
Venue
The Journal of Law and Economics
Published
2006-10
Volume
49
Issue
2
Pages
397-425
ISSN
  • 0022-2186 (ISSN-L)
  • 1537-5285
OpenAlex
W3121177697
Cited by
316
References
16
FWCI
31.24
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: The Jeffords Effect. https://app.cochat.ai/papers/10.1086/501091
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Jayachandran, S. (2006). The Jeffords Effect. The Journal of Law and Economics. https://doi.org/10.1086/501091

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.