Unnatural Experiments? Estimating the Incidence of Endogenous Policies
The US federal system provides great potential for estimating the effects of policy on behavior. There are numerous empirical studies that exploit variation in policies over space and time. In pursuing this line of enquiry, the issue of policy endogeneity is central. If state policy making is purposeful action, responsive to economic and political conditions within the state, then it may be necessary to identify and control for the forces that lead policies to change if one wishes to obtain unbiased estimates of a policy's incidence. The aim of this paper is to investigate how recognition of policy endogeneity affects attempts to analyze policy incidence. Throughout, we take a specific context -- workers' compensation benefits. We contrast the use of differences-in-differences estimation, where a comparison is made between a group affected by the policy change and a control group, with instrumental variables estimation when political variables are used as instruments. Although conclusions drawn must be confined to the example at hand, we believe that the analysis illustrates why it may be important to consider the implications of policy endogeneity more generally.
|Date of creation:||Dec 1994|
|Date of revision:|
|Publication status:||published as Economic Journal, Vol. 110, no. 467, (November 2000), pp. F672-F694.|
|Contact details of provider:|| Postal: |
Web page: http://www.nber.org
More information through EDIRC
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- John Piggott & John Whalley, 1994.
"The Tax Unit and Household Production,"
NBER Working Papers
4820, National Bureau of Economic Research, Inc.
- Besley, Timothy & Case, Anne, 1995.
"Incumbent Behavior: Vote-Seeking, Tax-Setting, and Yardstick Competition,"
American Economic Review,
American Economic Association, vol. 85(1), pages 25-45, March.
- Timothy Besley & Anne Case, 1992. "Incumbent Behavior: Vote Seeking, Tax Setting and Yardstick Competition," NBER Working Papers 4041, National Bureau of Economic Research, Inc.
When requesting a correction, please mention this item's handle: RePEc:nbr:nberwo:4956. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: ()
If references are entirely missing, you can add them using this form.