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SPUNDIR: Stata module to create directed dyad contagion spatial effect variable


  • Eric Neumayer

    () (London School of Economics and Political Science)

  • Thomas Plümper

    () (University of Essex)


spundir generates an undirected dyad contagion spatial effect variable for analysis of spatial dependence in undirected dyad data. It can create spatial effect variables for spatial lag, spatial-x and spatial error models. See for an explanation of what constitutes undirected dyad contagion. Requires installation of the mmerge package (q.v.)

Suggested Citation

  • Eric Neumayer & Thomas Plümper, 2009. "SPUNDIR: Stata module to create directed dyad contagion spatial effect variable," Statistical Software Components S457014, Boston College Department of Economics, revised 02 Jul 2013.
  • Handle: RePEc:boc:bocode:s457014 Note: This module should be installed from within Stata by typing "ssc install spundir". Windows users should not attempt to download these files with a web browser.

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