The Diffusion of Multiple Process Technologies. Stoneman, P. & Kwon, M. The Economic Journal, 104(423):420--431, 1994.
bibtex   
@article{ stoneman_diffusion_1994,
  title = {The {Diffusion} of {Multiple} {Process} {Technologies}},
  volume = {104},
  number = {423},
  journal = {The Economic Journal},
  author = {Stoneman, Paul and Kwon, Myung-Joong},
  year = {1994},
  pages = {420--431}
}

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