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Stock_market.nlogo
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Stock_market.nlogo
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; ------------------------------------------------------------------------------------------
;
; a simplified stock market simulation
;
;
; Author:
; Jihe.Gao@jiejiaotech.com
;
; ------------------------------------------------------------------------------------------
; NetLogo requires that the extensions directive resides on the first line of code
extensions [matrix stats csv web time]
breed [Stocks stock]
breed [Investors investor]
__includes ["communication.nls" "bidding.nls" "stockexchange.nls" "gp.nls"]
globals [
global-wealth
initial-wealth-distribution
h-prices
total-dealed-volume
dividends ; intrinsic value, imported by .csv
max-networth
data
]
turtles-own [ incoming-queue ] ; for communication
Investors-own [
informed?
money_initial ;
money
networth
shares-dealed-tick
portfolio
watch-agent
strategy
expectation
l-freq ;learning-frequency - 控制Investor学习时机
init-l-freq
]
to setup
clear-all
ask patches [set pcolor black]
setup-stocks 1
set gp-current-stock stock 0
set h-prices []
reset-ticks
set-default-shape turtles "Person"
setup-investors Investor-population
set global-wealth sum [money] of investors
;; temporally remove chooser ""initial-wealth-distribution", to run online demo which cannot read string input
set initial-wealth-distribution "normal"
;;
ask investors [
allocate-money
set l-freq 2 + random 8 ; 1 to 30
set init-l-freq l-freq
update-networth
]
end
; run-options:
; - generate-price steps - generate historical prices with previous investing strategy
; - gp-learn - learning new investing strategy using historical stock prices
;
to go
; investors procedures
update-expectation
make-bidding
; stock exchange procedures
set total-dealed-volume 0
ask Stocks [
collect-bids-and-make-deal
update-stock-tables
set h-prices lput price h-prices
]
; investors procedures
update-position
update-networth
if ticks >= initial-random-walk-steps [
if not any? codeturtles [gp-setup]
gp-go
]
if ticks >= length dividends - 1 [stop]
tick
end
;------------------------------------------------;
;----------------- GO SUBRUTINES ----------------;
;------------------------------------------------;
to setup-investors [number-investors]
create-investors number-investors
[
set color black
setxy random-xcor random-ycor
set incoming-queue []
set expectation [price] of stock 0 + random 10 - random 10
; set networth [ ]
]
ask n-of (noise-ratio / 100 * count investors) investors [ set color white ]
ask n-of (%-informed / 100 * count investors with [color != white]) investors with [color != white][set informed? true set color blue ]
ask investors with [color = black][ set informed? false set color red ]
update-expectation
end
to update-expectation
ask Investors [
ifelse color = white
[ set expectation [ round (intr-value) + random 5 - random 5 ] of stock 0 ] ; noise investors
[
ifelse ticks < initial-random-walk-steps + who
[ set expectation [price + random 5 - random 5 ] of Stock 0 ]
[
ifelse (l-freq = 0 or watch-agent = 0) [
set l-freq init-l-freq
update-strategy
][ set l-freq l-freq - 1 ]
if strategy != 0 [ run strategy set expectation round expectation]
] ]
]
update-ycor
end
to update-ycor
ask Investors [
let new-pos expectation / max [expectation] of Investors * max-pycor * 0.9
set ycor ifelse-value (new-pos > 0) [ new-pos] [0]
]
end
to update-strategy
ask Investors with [color = red][
; uninformed investor can choose strategies without intr-value
if any? codeturtles with [not member? "intr-value" gp-compiledcode][
set watch-agent min-one-of codeturtles with [not member? "intr-value" gp-compiledcode] [ gp-calculate-fitness [init-l-freq] of myself ]
set strategy [gp-compiledcode] of watch-agent
]
]
ask Investors with [color = blue][
if any? codeturtles [
set watch-agent min-one-of codeturtles [ gp-calculate-fitness [init-l-freq] of myself ]
set strategy [gp-compiledcode] of watch-agent
]
]
end
to update-networth
ask Investors [
set networth money + portfolio * [price] of stock 0
]
set max-networth max [networth] of Investors
end
;;
to make-bidding
ask Investors [
if (expectation - [price] of stock 0) / [price] of stock 0 > 0.05 and money >= [price] of stock 0 [
send-order one-of (list "bl" "bm") 0 (round ([price] of stock 0 + (random abs (expectation - [price] of stock 0)))) 1 ; [ "buy-limit" stock-name order-price #share ]
]
if (expectation - [price] of stock 0) / [price] of stock 0 < -0.05 [
send-order one-of (list "sl" "sm") 0 (round ([price] of stock 0 - (random abs (expectation - [price] of stock 0)))) 1 ; [ "sell-limit" stock-name order-price #share ]
]
]
end
to send-order [performative stock-id order-price num-shares]
if performative = "bl" [
let msg add-content (list order-price num-shares) create-message "bl"
send add-receiver stock-id msg
]
if performative = "bm" [ ; buy market order
let msg add-content (list order-price num-shares) create-message "bl"
send add-receiver stock-id msg
]
if performative = "sl" [ ; sell limit order
let msg add-content (list order-price num-shares) create-message "sl"
send add-receiver stock-id msg
]
if performative = "sm" [ ; sell market order
let msg add-content (list order-price num-shares) create-message "sl"
send add-receiver stock-id msg
]
end
to update-position
ask Investors [
set shares-dealed-tick 0
let msg 0
let performative 0
while [not empty? incoming-queue]
[
set msg get-message ;;["buy-order-executed" "sender:2" "content:" [10 1] "receiver:6"]
set performative get-performative msg
let content get-content msg ;; [10 1]
let dealed-price first content ;; 10
let exchange-informed-dealed-volume last content ;; 1
let s get-sender msg ;; (who number) 2
set shares-dealed-tick shares-dealed-tick + last content
if performative = "buy-order-executed"
[
;replace-item index list value
set portfolio portfolio + exchange-informed-dealed-volume
set money money - dealed-price * exchange-informed-dealed-volume
]
if performative = "sell-order-executed"
[
set portfolio portfolio - exchange-informed-dealed-volume
set money money + dealed-price * exchange-informed-dealed-volume
]
]
]
end
to allocate-money
let m 0
let d 1
ifelse initial-average-wealth > global-wealth * 4
[set m initial-average-wealth]
[set m global-wealth * 4]
set d m / 10
if initial-wealth-distribution = "constant" [set money m]
if initial-wealth-distribution = "normal" [set money round(random-normal m d)]
if initial-wealth-distribution = "uniform" [set money round( m * 3 / 4 + random-float (1 / 2 * m))]
if initial-wealth-distribution = "pareto" [set money round((m * 0.9) / ((random-float 1) ^ (1 / 5)))]
if initial-wealth-distribution = "lognormal"
[set money round(exp(ln(m) - (1 / 2) * ln(1 + (d / m) ^ 2) + (random-normal 0 1) * (ln(1 + (d / m) ^ 2)) ^ (1 / 2)))]
set money_initial money
end
@#$#@#$#@
GRAPHICS-WINDOW
225
17
470
380
5
-1
15.82
1
10
1
1
1
0
0
0
1
-5
5
0
20
1
1
1
Períod
30.0
BUTTON
1
327
73
385
Setup
Setup
NIL
1
T
OBSERVER
NIL
NIL
NIL
NIL
1
BUTTON
75
327
216
386
go
go
T
1
T
OBSERVER
NIL
NIL
NIL
NIL
1
SLIDER
6
17
207
50
Investor-population
Investor-population
1
100
100
1
1
NIL
HORIZONTAL
PLOT
693
10
1259
153
Price
NIL
NIL
0.0
10.0
0.0
20.0
true
true
"" "if ticks > 200 [set-plot-x-range (ticks - 200) ticks]"
PENS
"price" 1.0 0 -8053223 true "" "plot [price] of Stock 0"
"intrinsic-value" 1.0 0 -7500403 true "" "plot dividend ticks / r * 100"
PLOT
693
150
1259
287
Trading Volume
NIL
NIL
0.0
10.0
0.0
10.0
true
true
"" "if ticks > 200 [set-plot-x-range (ticks - 200) ticks]"
PENS
"noise-investor" 1.0 0 -7500403 true "" "plot sum [dealed-volume] of stocks"
"uninformed" 1.0 0 -2674135 true "" "plot sum [shares-dealed-tick] of investors with [color = red]"
"informed" 1.0 0 -13791810 true "" "plot sum [shares-dealed-tick] of investors with [color = blue]"
BUTTON
76
388
190
433
go
go
NIL
1
T
OBSERVER
NIL
NIL
NIL
NIL
1
SWITCH
7
143
151
176
show_messages?
show_messages?
1
1
-1000
INPUTBOX
8
189
148
249
initial-average-wealth
1000
1
0
Number
INPUTBOX
1018
307
1097
367
randomseed
2
1
0
Number
SWITCH
1107
300
1277
333
fix-random-seed?
fix-random-seed?
1
1
-1000
INPUTBOX
913
306
1012
366
population-size
10
1
0
Number
INPUTBOX
695
371
826
431
initial-code-max-depth
5
1
0
Number
INPUTBOX
827
372
925
432
branch-chance
5
1
0
Number
INPUTBOX
927
372
1017
432
clone-chance
10
1
0
Number
INPUTBOX
1018
372
1106
432
mutate-chance
10
1
0
Number
INPUTBOX
1107
371
1209
431
crossover-chance
10
1
0
Number
PLOT
823
437
1023
557
Fitness Plot
NIL
NIL
0.0
10.0
0.0
10.0
true
true
"" "if ticks > 200 [set-plot-x-range (ticks - 200) ticks ]"
PENS
"avg" 1.0 0 -16777216 true "" ""
"best" 1.0 0 -13840069 true "" ""
"worst" 1.0 0 -2674135 true "" ""
BUTTON
701
523
804
556
NIL
gp-showbest
NIL
1
T
OBSERVER
NIL
NIL
NIL
NIL
1
BUTTON
701
483
815
516
show all code
clear-output\nask codeturtles with [length gp-compiledcode > 6][ \n output-print self \n output-print gp-compiledcode \n output-print \"----------\"\n ]
NIL
1
T
OBSERVER
NIL
NIL
NIL
NIL
1
MONITOR
1160
86
1259
131
NIL
[price] of Stock 0
17
1
11
PLOT
426
16
686
136
investor expectations
NIL
NIL
0.0
150.0
0.0
10.0
true
false
"" ""
PENS
"default" 1.0 1 -16777216 true "" "if ticks > 1 and any? investors [\nset-plot-x-range (min [expectation] of investors)(max[expectation] of investors)\nhistogram [expectation] of Investors\n]"
SLIDER
6
87
208
120
%-informed
%-informed
0
100
39
1
1
NIL
HORIZONTAL
INPUTBOX
9
257
169
317
initial-random-walk-steps
100
1
0
Number
INPUTBOX
8
512
96
572
file-choose
sh.csv
1
0
String
SWITCH
1106
337
1247
370
show-debug?
show-debug?
1
1
-1000
SLIDER
6
52
207
85
noise-ratio
noise-ratio
0
100
41
1
1
NIL
HORIZONTAL
INPUTBOX
693
307
815
367
max-learning-step
130
1
0
Number
PLOT
427
138
687
258
codeturtle expectations
NIL
NIL
0.0
150.0
0.0
10.0
true
false
"" ""
PENS
"default" 1.0 1 -16777216 true "" "if ticks > initial-random-walk-steps and any? codeturtles [\nset-plot-x-range (min [expectation] of codeturtles) (max [expectation] of codeturtles)\nhistogram [expectation] of codeturtles]"
INPUTBOX
818
307
911
367
max-popsize
200
1
0
Number
MONITOR
695
435
818
480
NIL
count codeturtles
17
1
11
PLOT
426
260
687
380
networth distribution
NIL
NIL
0.0
10.0
0.0
10.0
true
false
"" ""
PENS
"default" 1.0 1 -16777216 true "" "if any? investors [\nset-plot-x-range (min [networth] of investors) (max [networth] of investors)\nhistogram [networth] of investors\n]"
SLIDER
204
540
296
573
r
r
0.01
0.1
0.1
0.01
1
%
HORIZONTAL
PLOT
434
388
695
552
best-yield-by-group
NIL
NIL
0.0
10.0
0.0
1.0
true
true
"" "if ticks > 100 [set-plot-x-range (ticks - 100) ticks]"
PENS
"noise-best" 1.0 0 -16777216 true "" "if ticks > 0 [plot max [networth / money_initial] of investors with [color = white]]"
"uninformed-best" 1.0 0 -2674135 true "" "if ticks > 0 [plot max [networth / money_initial] of investors with [color = red]]"
"informed-best" 1.0 0 -13345367 true "" "if ticks > 0 [plot max [networth / money_initial] of investors with [color = blue]]"
"noise-mean" 1.0 0 -9276814 true "" "if ticks > 0 [plot mean [networth / money_initial] of investors with [color = white]]"
"uninformed-mean" 1.0 0 -1604481 true "" "if ticks > 0 [plot mean [networth / money_initial] of investors with [color = red]]"
"informed-mean" 1.0 0 -10649926 true "" "if ticks > 0 [plot mean [networth / money_initial] of investors with [color = blue]]"
INPUTBOX
97
512
187
572
code
sh600519
1
0
String
CHOOSER
5
466
194
511
data-source
data-source
"from-file" "webAPI" "monte-carlo"
1
INPUTBOX
196
388
434
531
cross_fitness_weight
[0.1 0.1 0.1 0.1 0.1 0.1 0 0 0 0.4\n]
1
1
String
@#$#@#$#@
## Where I can find more information?
## CREDITS AND REFERENCES
If you want to use this model, you have to quote the author: Gil, Alvaro. Artificial Stock Market. Pontificia Universidad Javeriana (Colombia) 2012. alvaro.gil@polymtl.ca
@#$#@#$#@
default
true
0
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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
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Polygon -7500403 true true 150 0 0 150 105 150 105 293 195 293 195 150 300 150
box
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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
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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
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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
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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
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circle 2
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Circle -7500403 true true 0 0 300
Circle -16777216 true false 30 30 240
cow
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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
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Circle -7500403 true true 0 0 300
dot
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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
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Circle -16777216 true false 180 75 60
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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
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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
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flag
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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
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Circle -7500403 true true 130 147 38
Circle -7500403 true true 192 85 38
Circle -7500403 true true 85 40 38
Circle -7500403 true true 177 40 38
Circle -7500403 true true 177 132 38
Circle -7500403 true true 70 85 38
Circle -7500403 true true 130 25 38
Circle -7500403 true true 96 51 108
Circle -16777216 true false 113 68 74
Polygon -10899396 true false 189 233 219 188 249 173 279 188 234 218
Polygon -10899396 true false 180 255 150 210 105 210 75 240 135 240
house
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Polygon -7500403 true true 15 120 150 15 285 120
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leaf
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line
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line half
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pentagon
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person
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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
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Polygon -7500403 true true 195 90 240 150 225 180 165 105
Polygon -7500403 true true 105 90 60 150 75 180 135 105
person student
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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
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Polygon -13791810 true false 90 210 120 225 135 165 67 130 53 189
Polygon -1 true false 120 224 131 225 124 210
Line -16777216 false 139 168 126 225
Line -16777216 false 140 167 76 136
Polygon -7500403 true true 105 90 60 195 90 210 135 105
plant
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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