Competition Among Spatially Differentiated Firms: An Empirical Model with an Application to Cement
AbstractThe theoretical literature of industrial organization shows that the distances between consumers and firms have first-order implications for competitive outcomes whenever transportation costs are large. To assess these effects empirically, we develop a structural model of competition among spatially differentiated firms and introduce a GMM estimator that recovers the structural parameters with only regional-level data. We apply the model and estimator to the portland cement industry. The estimation fits, both in-sample and out-of-sample, demonstrate that the framework explains well the salient features of competition. We estimate transportation costs to be $0.30 per tonne-mile, given diesel prices at the 2000 level, and show that these costs constrain shipping distances and provide firms with localized market power. To demonstrate policy-relevance, we conduct counter-factual simulations that quantify competitive harm from a hypothetical merger. We are able to map the distribution of harm over geographic space and identify the divestiture that best mitigates harm.
Download InfoIf 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.
Bibliographic InfoPaper provided by Department of Justice, Antitrust Division in its series EAG Discussions Papers with number 201002.
Length: 45 pages
Date of creation: Mar 2010
Date of revision:
This paper has been announced in the following NEP Reports:
- NEP-ALL-2010-05-22 (All new papers)
- NEP-COM-2010-05-22 (Industrial Competition)
- NEP-GEO-2010-05-22 (Economic Geography)
- NEP-IND-2010-05-22 (Industrial Organization)
- NEP-MIC-2010-05-22 (Microeconomics)
You can help add them by filling out this form.
CitEc Project, subscribe to its RSS feed for this item.
- Ken Heyer & Carl Shapiro, 2010. "The Year in Review: Economics at the Antitrust Division, 2009–2010," Review of Industrial Organization, Springer, vol. 37(4), pages 291-307, December.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Tung Vu).
If references are entirely missing, you can add them using this form.