[Search for users] [Overall Top Noters] [List of all Conferences] [Download this site]

Conference thebay::joyoflex

Title:The Joy of Lex
Notice:A Notes File even your grammar could love
Moderator:THEBAY::SYSTEM
Created:Fri Feb 28 1986
Last Modified:Mon Jun 02 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1192
Total number of notes:42769

1029.0. "1+(-1)=0" by BREYER::BREYER (the first RISC CPU was the PDP8!) Fri Mar 05 1993 13:37

Well, I have searched through the directory of this conference and tried a directory of notes 
with the text 'zero' imbedded, but to no avail.  Therefore, this question:

	What is meant by the phrase: "a zero sum game"

Based the context of the places I have seen it used, I have a mental picture of what it means, 
but would like to know more about the source or derivation of the phrase.

Speculation will be enjoyed, but information will be most appreciated.

jlb
T.RTitleUserPersonal
Name
DateLines
1029.1From game theoryTLE::JBISHOPFri Mar 05 1993 13:5310
    A game where the sum of winnings and losses is zero.  Most
    gambling is a zero-sum game.
    
    "Game" is technical term for a set of transactions governed
    by a set of rules, here.
    
    Some games have negative sums (each transaction reduces the
    total amount of "goodness"), some a positive sum.
    
    		-John Bishop
1029.2RDVAX::KALIKOWUnintelligibletsFri Mar 05 1993 14:4714
    Hmmm.  I have nothing to add to .1, but your .0, coupled with your
    1024.9, lead me to believe that the truncation at column 80 of the text
    of 1024.9 was not a lovely self-referential, intentional hack, but
    rather, an unfortunate result of some subtler mismatch between the
    editing and display environment you use for VAXnotes, and the terminal
    interface I habitually use, both on my VAXstation and on my PC.
    
    And it was a lovely illusion I hope not to give up, without giving you
    one more chance to claim that your 1029.0, too, was also intentionally
    given with this truncation for some other reason I am too dull to divine...?
    
    :-)
    
    Dan
1029.3NOVA::FISHERDEC Rdb/DinosaurSat Mar 06 1993 05:146
    So a game in which some "authority" keeps a little bit of each
    transaction would be "negative sum"?  As in tax stamps for
    real estate transfers, broker fees for stock transfers, or
    house keeps x% of each pot in a poker game?
    
    ed
1029.4I don't know whether time-value is included in GTTLE::JBISHOPMon Mar 08 1993 12:086
    re .3
    
    Yes, but the larger game (which includes the "authority" as a
    player) is zero-sum.
    
    		-John Bishop
1029.5RAGMOP::T_PARMENTERHuman. All too human.Tue Mar 09 1993 06:275
    In common parlance, in a zero-sum game my gain is your loss, that is,
    there's no compound interest or free lunch, there's just what's on the
    table.