Journal of Economic Geography Advance Access published online on February 24, 2005
Journal of Economic Geography, doi:10.1093/jnlecg/lbh050
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1 Department of Economics, University of Reading, RG6 6AW, UK
* To whom correspondence should be addressed. This paper uncovers some little-known properties of the iceberg transport cost functions which are employed in some new economic geography models. In particular the behaviour of the delivered prices generated by the Krugman iceberg specification is very different to those generated by the original Samuelson iceberg model, and these differences require careful interpretation of the outcomes of the explicitly spatial versions of new economic geography models. If the iceberg model is viewed simply as transport costs, then these properties can be shown to be largely implausible when compared with a wide range of empirical evidence. At the same time, even if the iceberg model is viewed as capturing a range of different distance costs, there are still grounds for cautiousness in the way that inferences are madefrom thesemodelswhenmoving from theory to reality or policy analysis.
Revised January 9, 2003
Accepted August 10, 2004
Article
Transport costs and new economic geography
Philip McCann, E-mail: p.mccann{at}reading.ac.uk
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