Innovation Model Timeline By Nikkiku Period: Mar 6, 1914 to Mar 6, 1918 World War I Period: Mar 6, 1929 to Mar 6, 1939 Great Depression Mar 6, 1934 Schumpeter Period: Mar 6, 1939 to Mar 6, 1945 World War II Period: Mar 6, 1945 to Mar 6, 1991 Cold War Mar 6, 1966 Schmookler Mar 6, 1993 Growth Mar 6, 1996 Myers/Rosenbloom Mar 6, 1997 Howells Mar 6, 2002 Chesbrough/Teece Mar 6, 2002 Toumi Mar 6, 2003 Chesbrough Mar 6, 2006 Chesbrough/Crowth Mar 6, 2007 Chesbrough