Karr, my only known student and entrepeneur

     Karr went to work at the Rand Corporation in Santa Monica, California, in the Spring of 1954. He set to work on applying simulation to various U.S.Air Force problems. Sometime later, may a year or so later, I remember him phoning me to tell me that he was simulating the "Fly Away Kit" for the Strategic Air Command (SAC). He discovered that the SAC crews were loading up the plane with toilet paper, not an especially heavy cargo but bulky. He was being flown back to Washington to give a lecture on this simulation to Air Force generals who were being flown in from all over the world. We reminisced about how far he had gone, from handicapping horses to advising generals.

     The culmination of the simulation software developed at Rand was SIMSCRIPT. Technically I think it was SIMSCRIPT 1 because there were later versions but it was referred to as just simply SIMSCRIPT. Dr. Harry Markowitz ( In 1990, he shared the Nobel prize in Economics for his work on portfolio analysis which began with his doctoral dissertation at the University of Chicago, with Bill Sharpe of Stanford and Merton Miller of Chicago.) was largely responsible for the technical specificatons. Karr wrote the User Manual and a third person whose name I did not remember. In a letter from Markowitz answering my inquiry about it, I learned that the programmer was Bernard Hausner who answered my letter to him. The letter from Markowitz also suggested that I contact Joe Annino for more information about Karr. I followed his suggestion and received an email from him with an attachment.

Markowitz letter

Hausner letter

Annino email and attachment

In 1962, Karr and Markowitz formed a company named California Analysis Centers Inc (that later became known as just CACI). At first it just offered courses on SIMSCRIPT but later developed and marketed the product itself. CACI went public in 1968 at $6 a share. Karr remained with CACI as Chairman of the Board until his death in April 1990.

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