Advanced Search
MyIDEAS: Login to save this paper or follow this series

Is there a Superior Distance Function for Matching in Small Samples?

Contents:

Author Info

  • Eva Dettmann
  • Claudia Becker
  • Christian Schmeißer

Abstract

The study contributes to the development of ’standards’ for the application of matching algorithms in empirical evaluation studies. The focus is on the first step of the matching procedure, the choice of an appropriate distance function. Supplementary o most former studies, the simulation is strongly based on empirical evaluation ituations. This reality orientation induces the focus on small samples. Furthermore, ariables with different scale levels must be considered explicitly in the matching rocess. The choice of the analysed distance functions is determined by the results of former theoretical studies and recommendations in the empirical literature. Thus, in the simulation, two balancing scores (the propensity score and the index score) and the Mahalanobis distance are considered. Additionally, aggregated statistical distance functions not yet used for empirical evaluation are included. The matching outcomes are compared using non-parametrical scale-specific tests for identical distributions of the characteristics in the treatment and the control groups. The simulation results show that, in small samples, aggregated statistical distance functions are the better choice for summarising similarities in differently scaled variables compared to the commonly used measures.

Download Info

If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
File URL: http://www.iwh-halle.de/d/publik/disc/3-10.pdf
Download Restriction: no

Bibliographic Info

Paper provided by Halle Institute for Economic Research in its series IWH Discussion Papers with number 3.

as in new window
Length:
Date of creation: Feb 2010
Date of revision:
Handle: RePEc:iwh:dispap:3-10

Contact details of provider:
Postal: Kleine Märkerstrasse 8, 06108 Halle (Saale)
Phone: (0345) 7753-60
Fax: (0345) 7753-820
Web page: http://www.iwh-halle.de
More information through EDIRC

Related research

Keywords: distance functions; matching; microeconometric evaluation; propensity score; simulation;

Find related papers by JEL classification:

This paper has been announced in the following NEP Reports:

References

No references listed on IDEAS
You can help add them by filling out this form.

Citations

Lists

This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

Statistics

Access and download statistics

Corrections

When requesting a correction, please mention this item's handle: RePEc:iwh:dispap:3-10. 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: (Hubert Gabrisch).

If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

If references are entirely missing, you can add them using this form.

If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.

If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.

Please note that corrections may take a couple of weeks to filter through the various RePEc services.