I know the first letter of the sought after management model:

 
 
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Hill, Charles W.L., Hwang, Peter, Kim, W. Chan
  • period: 1990
  • country: United States
  • role: consultant
  • activity: analyse and design
  • topic: culture & internationalisation and strategic management
 
ep[r]g
Perlmutter, Howard V.
  • period: 1969
  • country: United States
  • role: change agent, consultant and manager
  • activity: analyse
  • topic: culture & internationalisation and org. design & development