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Selection Effects With Heterogeneous Firms

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  • Mrázová, Monika
  • Neary, J Peter

Abstract

We characterize how firms select between alternative ways of serving a market. ``First-order" selection effects, whether firms enter or not, are extremely robust. "Second-order" ones, how firms serve a market conditional on entry, are less so: more efficient firms will select into the entry mode with lower market-access costs, if and only if firms' maximum profits are supermodular in production and market access costs. Supermodularity holds in many cases but not in all. Exceptions include FDI (both horizontal and vertical) when demands are "sub-convex" (i.e., less convex than CES), fixed costs that vary with access mode, and R&D with threshold effects.

Suggested Citation

  • Mrázová, Monika & Neary, J Peter, 2013. "Selection Effects With Heterogeneous Firms," CEPR Discussion Papers 9288, C.E.P.R. Discussion Papers.
  • Handle: RePEc:cpr:ceprdp:9288
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    More about this item

    Keywords

    Foreign Direct Investment (FDI); Heterogeneous Firms; Proximity-Concentration Trade-Off; R&D with Threshold Effects; Super- and Sub-Convexity; Supermodularity;
    All these keywords.

    JEL classification:

    • F12 - International Economics - - Trade - - - Models of Trade with Imperfect Competition and Scale Economies; Fragmentation
    • F15 - International Economics - - Trade - - - Economic Integration
    • F23 - International Economics - - International Factor Movements and International Business - - - Multinational Firms; International Business

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