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1. Mi ez?Ez a modell a fogyaszti magatartst szimullja egy mr ismert termkhez val viszonyuls

alapjn, ezltal alkalmas arra, hogy - a piaci szegmentumok alakulst bemutatva - egy (az

ismert termkhez hasonl), j termk pozicionlshoz segtsget adjon. A modellben

szerepl nk s frfiak, mint fogyasztk csoportokat/piaci szegmenseket formlnak. A

fogyasztk, illetve a szegmensek szmnak, valamint a termk-kedveltsg belltsval

megfigyelhet, hogy milyen sszettel s szm szegmensek alakulnak.

2. Hogyan mkdik?A fogyasztk rendelkeznek valamilyen mrtk egy adott, ismert termkre vonatkoz

kedveltsggel (TOLERANCE), amely meghatrozza a szegmensekben elfoglalt helyket.

Amennyiben a kedveltsg szintje az adott szegmensben magasabb, mint amennyire maguk isrzik, gy elhagyjk az adott szegmenst s msikat keresnek. A vndorls addig tart, amg a

piacon mindenki megtallja a szmra megfelel szegmenst.

3. Hasznlati tmutatA NUMBER csszkn lehet belltani a potencilis fogyasztk szmt, a NUM-GROUPS csszkn pedig

a szegmensek szmt.

A SETUP gomb alkalmas random szegmensek kpzsre. Amennyiben csak egy lpst kvnunkvizsglni, hasznljuk a GO ONCE gombot. A GO gomb megnyomsval a modell addig fut, amg

minden fogyaszt meg nem tallja az adott termkre vonatkoz sajt kedveltsgi szintjnek

megfelel szegmenst.

A kpernyn megjelen szmok jelzik a szegmensek mrett. A fehr szmok a vegyes csoportokat,

mg a szrke szmok az egynem csoportokat jellik.

A termk kedveltsgi szintjnek belltshoz a TOLERANCE csszkt kell hasznlni. A csszkn lv

rtkek vltoztathatk a modell futtatsa kzben.

A NUMBER HAPPY s a SINGLE SEX GROUPS tblk mutatjk a szegmensek alakulst. A NUMBERHAPPY mutatja, hogy hny fogyaszt tallhat a szmra megfelel kedveltsgi helyen, a SINGLE SEX

GROUPS pedig a csak frfi, vagy csak ni szegmensek szmt mutatja.

4. Mire figyeljnk?A szimulci vgn (miutn mindenki megtallta a szmra megfelel termk-kedveltsgi szinttel

jellemezhet szegmenst)figyeljk meg az egynem csoportok szmt, tbb-e mint indulskor?

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Prbljuk ki

Hatrozzunk meg egy fogyaszti szmot, amit meg kvnunk clozni. (NUMBER) lltsunk be

szmunkra optimlis szm szegmenst (NUM-GROUP). Indtsuk el a modellt (GO ONCE) Nzzk meg

hogyan alakult egy lps sorn a szegmentlds. Vgl futtassuk le a modellt (GO).Prbljuk

vltoztatni a TOLERANCE csszkn a kedveltsg mrtkt. A modell lefutst kveten,az elremegadott paramterek szerinti egy kvzi egyenslyi llapot figyelhet meg.

Tovbbfejleszts

Add more attributes to the model. Instead of male/female, try a trait that has more than two types,

like race or religion. (You might use NetLogo's breeds feature to implement that.)

Allow each breed of person to have their own tolerance.

Complicate the tolerance rules: For example, the tolerance could go up as long as there are at least

two of one breed.

Allow groups to subdivide, instead of finding new groups.

Set a maximum group size, so that if there are too many people in the group, they become unhappy.

NETLOGO FEATURES

Most NetLogo models put the origin (0,0) in the center of the world, but here, we have placed the

origin near the right edge of the world and most of the patches have negative X coordinates. This

simplifies the math for situating the groups.

Horizontal wrapping is enabled, but vertical wrapping is disabled. Thus, the world topology is a

"vertical cylinder".

Notice the use of the MOD primitive to space out the groups evenly. Setting up the groups in this

manner allows for easy movement from group to group.

RELATED MODELS

Segregation

CREDITS AND REFERENCES

This model is based on the work of the pioneering economist Thomas Schelling: Schelling, T. (1978).Micro-motives and Macro-Behavior. New York: Norton.

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See also: Resnick, M. & Wilensky, U. (1998). Diving into Complexity: Developing Probabilistic

Decentralized Thinking through Role-Playing Activities. Journal of Learning Sciences, Vol. 7, No. 2.

http://ccl.northwestern.edu/papers/starpeople/

HOW TO CITE

If you mention this model in an academic publication, we ask that you include these citations for the

model itself and for the NetLogo software: - Wilensky, U. (1997). NetLogo Party model.

http://ccl.northwestern.edu/netlogo/models/Party. Center for Connected Learning and Computer-

Based Modeling, Northwestern University, Evanston, IL. - Wilensky, U. (1999). NetLogo.

http://ccl.northwestern.edu/netlogo/. Center for Connected Learning and Computer-Based

Modeling, Northwestern University, Evanston, IL.

In other publications, please use: - Copyright 1997 Uri Wilensky. All rights reserved. See

http://ccl.northwestern.edu/netlogo/models/Party for terms of use.

COPYRIGHT NOTICE

Copyright 1997 Uri Wilensky. All rights reserved.

Permission to use, modify or redistribute this model is hereby granted, provided that both of the

following requirements are followed: a) this copyright notice is included. b) this model will not be

redistributed for profit without permission from Uri Wilensky. Contact Uri Wilensky for appropriate

licenses for redistribution for profit.

This model was created as part of the project: CONNECTED MATHEMATICS: MAKING SENSE OF

COMPLEX PHENOMENA THROUGH BUILDING OBJECT-BASED PARALLEL MODELS (OBPML). The

project gratefully acknowledges the support of the National Science Foundation (Applications of

Advanced Technologies Program) -- grant numbers RED #9552950 and REC #9632612.

This model was converted to NetLogo as part of the projects: PARTICIPATORY SIMULATIONS:

NETWORK-BASED DESIGN FOR SYSTEMS LEARNING IN CLASSROOMS and/or INTEGRATED

SIMULATION AND MODELING ENVIRONMENT. The project gratefully acknowledges the support of

the National Science Foundation (REPP & ROLE programs) -- grant numbers REC #9814682 and REC-0126227. Converted from StarLogoT to NetLogo, 2001.