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Cost-Benefit Analysis in Monopolistic Competition Models of Urban Agglomeration

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  • Yoshitsugu Kanemoto

    (National Graduate Institute for Policy Studies)

Abstract

Many sources of urban agglomeration involve departures from the first-best world. The benefit evaluation of a transportation project must then take into account agglomeration benefits along with any direct user benefits. Using a monopolistic competition model of differentiated intermediate products, we show that the additional benefits can be expressed as an extended Harberger formula with variety distortion in addition to price distortion. They are positive if variety is procompetitive, but, in the anticompetitive case, we cannot exclude the possibility of negative additional benefits. By introducing the rural sector and multiple cities explicitly, we also show that the agglomeration benefits depend on where the new workers are from.

Suggested Citation

  • Yoshitsugu Kanemoto, 2012. "Cost-Benefit Analysis in Monopolistic Competition Models of Urban Agglomeration," GRIPS Discussion Papers 12-04, National Graduate Institute for Policy Studies.
  • Handle: RePEc:ngi:dpaper:12-04
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    References listed on IDEAS

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    1. Edward L. Glaeser, Jed Kolko, and Albert Saiz, 2001. "Consumer city," Journal of Economic Geography, Oxford University Press, vol. 1(1), pages 27-50, January.
    2. Kanemoto, Yoshitsugu, 1990. "Optimal cities with indivisibility in production and interactions between firms," Journal of Urban Economics, Elsevier, vol. 27(1), pages 46-59, January.
    3. Feenstra, Robert C., 2003. "A homothetic utility function for monopolistic competition models, without constant price elasticity," Economics Letters, Elsevier, vol. 78(1), pages 79-86, January.
    4. Behrens, Kristian & Kanemoto, Yoshitsugu & Murata, Yasusada, 2015. "The Henry George Theorem in a second-best world," Journal of Urban Economics, Elsevier, vol. 85(C), pages 34-51.
    5. Gianmarco Ottaviano & Takatoshi Tabuchi & Jacques-FranÁois Thisse, 2002. "Agglomeration and Trade Revisited," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 43(2), pages 409-436, May.
    6. Tabuchi, Takatoshi & Yoshida, Atsushi, 2000. "Separating Urban Agglomeration Economies in Consumption and Production," Journal of Urban Economics, Elsevier, vol. 48(1), pages 70-84, July.
    7. Peng, Shin-Kun & Thisse, Jacques-Francois & Wang, Ping, 2006. "Economic integration and agglomeration in a middle product economy," Journal of Economic Theory, Elsevier, vol. 131(1), pages 1-25, November.
    8. Vickerman, Roger, 2008. "Transit investment and economic development," Research in Transportation Economics, Elsevier, vol. 23(1), pages 107-115, January.
    9. Kanemoto, Yoshitsugu, 2013. "Second-best cost–benefit analysis in monopolistic competition models of urban agglomeration," Journal of Urban Economics, Elsevier, vol. 76(C), pages 83-92.
    10. ZHELOBODKO, Evgeny & KOKOVIN, Sergey & PARENTI, Mathieu & THISSE, Jean - François, 2011. "Monopolistic competition in general equilibrium: beyond the CES," CORE Discussion Papers 2011010, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
    11. Diego Puga, 2010. "The Magnitude And Causes Of Agglomeration Economies," Journal of Regional Science, Wiley Blackwell, vol. 50(1), pages 203-219.
    12. Daniel J. Graham, 2007. "Agglomeration, Productivity and Transport Investment," Journal of Transport Economics and Policy, University of Bath, vol. 41(3), pages 317-343, September.
    13. Graham, Daniel J., 2007. "Variable returns to agglomeration and the effect of road traffic congestion," Journal of Urban Economics, Elsevier, vol. 62(1), pages 103-120, July.
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    Cited by:

    1. Kanemoto, Yoshitsugu, 2013. "Evaluating benefits of transportation in models of new economic geography," Economics of Transportation, Elsevier, vol. 2(2), pages 53-62.

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