turtles-own [buy randombuy own?] breed [people person] breed [ads ad] to setup clear-all setup-patches setup-people setup-ads initialbuy do-plots end to setup-patches ask patches [ set pcolor grey ] end to setup-people set-default-shape turtles "person" create-people blue-population [set color blue set size 1.2 setxy random-xcor random-ycor set own? false] create-people yellow-population [set color yellow set size 1.2 setxy random-xcor random-ycor set own? true] end to setup-ads set-default-shape ads "flag" create-ads advertisements [set color red set size ad-size setxy random-xcor random-ycor] end to initialbuy ask turtles [set buy random 400] end to go if ticks >= 10000 [ stop ] move-turtles bought purchased word-of-mouth view-ads tick do-plots end to move-turtles ask people [right random 359 forward random 3 ] end to bought ask people[ if buy > 700 and buy < 800 ; sets a limit in which people will buy the product and [set randombuy random 5] ; thusly turn yellow ifelse show-buy [set label buy] [set label ""]] end to purchased ask people [ if randombuy = 2 ; once the people are in the range that they will buy [set color yellow set own? true] ; the product, this gives them a one in six chance ifelse show-randombuy ; to actually buy the product [set label randombuy] [set label ""]] end to word-of-mouth ; sets the efficacy of the word of mouth interaction between ask people with [own?] ; those who have bought the product and those who haven't [ask other people-here ; and enables the interaction [set buy buy + WoM-Effect]] end to view-ads ; sets the efficacy of the advertisements and enables the interaction ask ads [ask people-here [set buy buy + ad-effect]] end to do-plots set-current-plot "Totals" set-current-plot-pen "blue turtles" plot count turtles with [ color = blue] set-current-plot-pen "yellow turtles" plot count turtles with [color = yellow] end @#$#@#$#@ GRAPHICS-WINDOW 421 10 964 574 20 20 13.0 1 10 1 1 1 0 1 1 1 -20 20 -20 20 0 0 1 ticks CC-WINDOW 5 588 973 683 Command Center 0 BUTTON 6 10 70 43 Setup setup NIL 1 T OBSERVER NIL NIL NIL NIL BUTTON 79 10 142 43 Go go T 1 T OBSERVER NIL NIL NIL NIL SLIDER 6 51 178 84 blue-population blue-population 0 1000 573 1 1 NIL HORIZONTAL SWITCH 7 93 117 126 show-buy show-buy 1 1 -1000 SWITCH 7 132 158 165 show-randombuy show-randombuy 1 1 -1000 SLIDER 7 168 179 201 WoM-Effect WoM-Effect 0 100 23 1 1 NIL HORIZONTAL SLIDER 7 205 179 238 yellow-population yellow-population 0 100 6 1 1 NIL HORIZONTAL MONITOR 8 240 65 285 Blue count turtles with [color = blue] 17 1 11 MONITOR 73 240 130 285 Yellow count turtles with [color = yellow] 17 1 11 PLOT 8 294 208 444 Totals time number 0.0 10.0 0.0 10.0 true false PENS "default" 1.0 0 -16777216 true "blue turtles" 1.0 0 -13345367 true "yellow turtles" 1.0 0 -1184463 true SLIDER 126 94 298 127 advertisements advertisements 0 30 13 1 1 NIL HORIZONTAL SLIDER 162 132 334 165 ad-size ad-size .1 5 1.5 .1 1 NIL HORIZONTAL SLIDER 183 168 355 201 ad-effect ad-effect 0 100 19 1 1 NIL HORIZONTAL @#$#@#$#@ WHAT IS IT? ----------- Consumerism HOW IT WORKS ------------ The model represents the purchase history of a product over a period of time, similar to the popularity of a fad. HOW TO USE IT ------------- Blue population- this variable represents the people who do not have the product. yellow population- This variable represents the people who have the product or would buy it immediatly upon release (for example fans of a given brand). WoM effect (word if mouth): the efficacy of word of mouth for the product. WoM happens when a blue person interacts with a yellow person. note: resaerch shows that negative and positive word of mouth both lead to purchases. Advirtisements: the number of stationary advirtisements for the product. ad-size: the size of the adds. ad-effect: similar to WoM effect; every time a blue person interacts with an ad, they are more likely to buy the product. THINGS TO NOTICE ---------------- This section could give some ideas of things for the user to notice while running the model. THINGS TO TRY ------------- This section could give some ideas of things for the user to try to do (move sliders, switches, etc.) with the model. EXTENDING THE MODEL ------------------- This section could give some ideas of things to add or change in the procedures tab to make the model more complicated, detailed, accurate, etc. NETLOGO FEATURES ---------------- This section could point out any especially interesting or unusual features of NetLogo that the model makes use of, particularly in the Procedures tab. It might also point out places where workarounds were needed because of missing features. RELATED MODELS -------------- This section could give the names of models in the NetLogo Models Library or elsewhere which are of related interest. CREDITS AND REFERENCES ---------------------- This section could contain a reference to the model's URL on the web if it has one, as well as any other necessary credits or references. @#$#@#$#@ default true 0 Polygon -7500403 true true 150 5 40 250 150 205 260 250 airplane true 0 Polygon -7500403 true true 150 0 135 15 120 60 120 105 15 165 15 195 120 180 135 240 105 270 120 285 150 270 180 285 210 270 165 240 180 180 285 195 285 165 180 105 180 60 165 15 arrow true 0 Polygon -7500403 true true 150 0 0 150 105 150 105 293 195 293 195 150 300 150 box false 0 Polygon -7500403 true true 150 285 285 225 285 75 150 135 Polygon -7500403 true true 150 135 15 75 150 15 285 75 Polygon -7500403 true true 15 75 15 225 150 285 150 135 Line -16777216 false 150 285 150 135 Line -16777216 false 150 135 15 75 Line -16777216 false 150 135 285 75 bug true 0 Circle -7500403 true true 96 182 108 Circle -7500403 true true 110 127 80 Circle -7500403 true true 110 75 80 Line -7500403 true 150 100 80 30 Line -7500403 true 150 100 220 30 butterfly true 0 Polygon -7500403 true true 150 165 209 199 225 225 225 255 195 270 165 255 150 240 Polygon -7500403 true true 150 165 89 198 75 225 75 255 105 270 135 255 150 240 Polygon -7500403 true true 139 148 100 105 55 90 25 90 10 105 10 135 25 180 40 195 85 194 139 163 Polygon -7500403 true true 162 150 200 105 245 90 275 90 290 105 290 135 275 180 260 195 215 195 162 165 Polygon -16777216 true false 150 255 135 225 120 150 135 120 150 105 165 120 180 150 165 225 Circle -16777216 true false 135 90 30 Line -16777216 false 150 105 195 60 Line -16777216 false 150 105 105 60 car false 0 Polygon -7500403 true true 300 180 279 164 261 144 240 135 226 132 213 106 203 84 185 63 159 50 135 50 75 60 0 150 0 165 0 225 300 225 300 180 Circle -16777216 true false 180 180 90 Circle -16777216 true false 30 180 90 Polygon -16777216 true false 162 80 132 78 134 135 209 135 194 105 189 96 180 89 Circle -7500403 true true 47 195 58 Circle -7500403 true true 195 195 58 circle false 0 Circle -7500403 true true 0 0 300 circle 2 false 0 Circle -7500403 true true 0 0 300 Circle -16777216 true false 30 30 240 cow false 0 Polygon -7500403 true true 200 193 197 249 179 249 177 196 166 187 140 189 93 191 78 179 72 211 49 209 48 181 37 149 25 120 25 89 45 72 103 84 179 75 198 76 252 64 272 81 293 103 285 121 255 121 242 118 224 167 Polygon -7500403 true true 73 210 86 251 62 249 48 208 Polygon -7500403 true true 25 114 16 195 9 204 23 213 25 200 39 123 cylinder false 0 Circle -7500403 true true 0 0 300 dot false 0 Circle -7500403 true true 90 90 120 face happy false 0 Circle -7500403 true true 8 8 285 Circle -16777216 true false 60 75 60 Circle -16777216 true false 180 75 60 Polygon -16777216 true false 150 255 90 239 62 213 47 191 67 179 90 203 109 218 150 225 192 218 210 203 227 181 251 194 236 217 212 240 face neutral false 0 Circle -7500403 true true 8 7 285 Circle -16777216 true false 60 75 60 Circle -16777216 true false 180 75 60 Rectangle -16777216 true false 60 195 240 225 face sad false 0 Circle -7500403 true true 8 8 285 Circle -16777216 true false 60 75 60 Circle -16777216 true false 180 75 60 Polygon -16777216 true false 150 168 90 184 62 210 47 232 67 244 90 220 109 205 150 198 192 205 210 220 227 242 251 229 236 206 212 183 fish false 0 Polygon -1 true false 44 131 21 87 15 86 0 120 15 150 0 180 13 214 20 212 45 166 Polygon -1 true false 135 195 119 235 95 218 76 210 46 204 60 165 Polygon -1 true false 75 45 83 77 71 103 86 114 166 78 135 60 Polygon -7500403 true true 30 136 151 77 226 81 280 119 292 146 292 160 287 170 270 195 195 210 151 212 30 166 Circle -16777216 true false 215 106 30 flag false 0 Rectangle -7500403 true true 60 15 75 300 Polygon -7500403 true true 90 150 270 90 90 30 Line -7500403 true 75 135 90 135 Line -7500403 true 75 45 90 45 flower false 0 Polygon -10899396 true false 135 120 165 165 180 210 180 240 150 300 165 300 195 240 195 195 165 135 Circle -7500403 true true 85 132 38 Circle -7500403 true 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255 105 255 105 285 135 285 165 240 165 195 line true 0 Line -7500403 true 150 0 150 300 line half true 0 Line -7500403 true 150 0 150 150 pentagon false 0 Polygon -7500403 true true 150 15 15 120 60 285 240 285 285 120 person false 0 Circle -7500403 true true 110 5 80 Polygon -7500403 true true 105 90 120 195 90 285 105 300 135 300 150 225 165 300 195 300 210 285 180 195 195 90 Rectangle -7500403 true true 127 79 172 94 Polygon -7500403 true true 195 90 240 150 225 180 165 105 Polygon -7500403 true true 105 90 60 150 75 180 135 105 plant false 0 Rectangle -7500403 true true 135 90 165 300 Polygon -7500403 true true 135 255 90 210 45 195 75 255 135 285 Polygon -7500403 true true 165 255 210 210 255 195 225 255 165 285 Polygon -7500403 true true 135 180 90 135 45 120 75 180 135 210 Polygon -7500403 true true 165 180 165 210 225 180 255 120 210 135 Polygon -7500403 true true 135 105 90 60 45 45 75 105 135 135 Polygon -7500403 true true 165 105 165 135 225 105 255 45 210 60 Polygon -7500403 true true 135 90 120 45 150 15 180 45 165 90 square false 0 Rectangle -7500403 true true 30 30 270 270 square 2 false 0 Rectangle -7500403 true true 30 30 270 270 Rectangle -16777216 true false 60 60 240 240 star false 0 Polygon -7500403 true true 151 1 185 108 298 108 207 175 242 282 151 216 59 282 94 175 3 108 116 108 target false 0 Circle -7500403 true true 0 0 300 Circle -16777216 true false 30 30 240 Circle -7500403 true true 60 60 180 Circle -16777216 true false 90 90 120 Circle -7500403 true true 120 120 60 tile stones false 0 Polygon -7500403 true true 0 240 45 195 75 180 90 165 90 135 45 120 0 135 Polygon -7500403 true true 300 240 285 210 270 180 270 150 300 135 300 225 Polygon -7500403 true true 225 300 240 270 270 255 285 255 300 285 300 300 Polygon -7500403 true true 0 285 30 300 0 300 Polygon -7500403 true true 225 0 210 15 210 30 255 60 285 45 300 30 300 0 Polygon -7500403 true true 0 30 30 0 0 0 Polygon -7500403 true true 15 30 75 0 180 0 195 30 225 60 210 90 135 60 45 60 Polygon -7500403 true true 0 105 30 105 75 120 105 105 90 75 45 75 0 60 Polygon -7500403 true true 300 60 240 75 255 105 285 120 300 105 Polygon -7500403 true true 120 75 120 105 105 135 105 165 165 150 240 150 255 135 240 105 210 105 180 90 150 75 Polygon -7500403 true true 75 300 135 285 195 300 Polygon -7500403 true true 30 285 75 285 120 270 150 270 150 210 90 195 60 210 15 255 Polygon -7500403 true true 180 285 240 255 255 225 255 195 240 165 195 165 150 165 135 195 165 210 165 255 tree false 0 Circle -7500403 true true 118 3 94 Rectangle -6459832 true false 120 195 180 300 Circle -7500403 true true 65 21 108 Circle -7500403 true true 116 41 127 Circle -7500403 true true 45 90 120 Circle -7500403 true true 104 74 152 triangle false 0 Polygon -7500403 true true 150 30 15 255 285 255 triangle 2 false 0 Polygon -7500403 true true 150 30 15 255 285 255 Polygon -16777216 true false 151 99 225 223 75 224 truck false 0 Rectangle -7500403 true true 4 45 195 187 Polygon 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0.2 0 0.0 1.0 link direction true 0 Line -7500403 true 150 150 90 180 Line -7500403 true 150 150 210 180 @#$#@#$#@