breed [highlanders] breed [bellevuers] breed [unionists] breed [coldwaterers] globals [highlands-transaction-number bellevue-transaction-number eastern-union-transaction-number coldwaters-transaction-number] to setup clear-all reset-ticks ask patches [setup-highlands setup-bellevue setup-eastern-union setup-coldwaters] create-highlanders 5 [setxy random-float min-pxcor random-float max-pycor set color orange] create-bellevuers 5 [setxy random-float min-pxcor random-float min-pycor set color black] create-unionists 5 [setxy random-float max-pxcor random-float max-pycor set color white] create-coldwaterers 5 [setxy random-float max-pxcor random-float min-pxcor set color yellow] set highlands-transaction-number 0 set bellevue-transaction-number 0 set eastern-union-transaction-number 0 set coldwaters-transaction-number 0 end to go ask highlanders [if pcolor = red [visit-highlands] if pcolor = green [visit-bellevue] if pcolor = pink [visit-eastern-union] if pcolor = blue [visit-coldwaters] ] ask bellevuers [if pcolor = red [visit-highlands] if pcolor = green [visit-bellevue] if pcolor = pink [visit-eastern-union] if pcolor = blue [visit-coldwaters]] ask unionists [if pcolor = red [visit-highlands] if pcolor = green [visit-bellevue] if pcolor = pink [visit-eastern-union] if pcolor = blue [visit-coldwaters]] ask coldwaterers [if pcolor = red [visit-highlands] if pcolor = green [visit-bellevue] if pcolor = pink [visit-eastern-union] if pcolor = blue [visit-coldwaters]] tick end to setup-highlands if (pxcor < 0) and (pycor >= 0) [set pcolor red] end to setup-bellevue if (pxcor < 0) and (pycor < 0) [set pcolor green] end to setup-eastern-union if (pxcor >= 0) and (pycor > 0) [set pcolor pink] end to setup-coldwaters if (pxcor >= 0) and (pycor <= 0) [set pcolor blue] end to visit-highlands if facilities-in-highlands = 0 [if random-float 1 < 0.05 [move-in-highlands]] if facilities-in-highlands = 1 [if random-float 1 < 0.10 [move-in-highlands]] if facilities-in-highlands = 2 [if random-float 1 < 0.30 [move-in-highlands]] if facilities-in-highlands = 3 [if random-float 1 < 0.50 [move-in-highlands]] if facilities-in-highlands = 4 [if random-float 1 < 0.70 [move-in-highlands]] if facilities-in-highlands = 5 [if random-float 1 < 0.90 [move-in-highlands]] end to move-in-highlands lt random 360 forward 1 if count highlanders in-radius 1 > 0 [if color = orange [plus-highlanders-knowledge] if color = black [plus-highlanders-knowledge plus-bellevuers-knowledge highlands-commerce bellevue-commerce] if color = white [plus-highlanders-knowledge plus-unionists-knowledge highlands-commerce eastern-union-commerce] if color = yellow [plus-highlanders-knowledge plus-coldwaterers-knowledge highlands-commerce coldwaters-commerce]] end to visit-bellevue if facilities-in-bellevue = 0 [if random-float 1 < 0.05 [move-in-bellevue]] if facilities-in-bellevue = 1 [if random-float 1 < 0.10 [move-in-bellevue]] if facilities-in-bellevue = 2 [if random-float 1 < 0.30 [move-in-bellevue]] if facilities-in-bellevue = 3 [if random-float 1 < 0.50 [move-in-bellevue]] if facilities-in-bellevue = 4 [if random-float 1 < 0.70 [move-in-bellevue]] if facilities-in-bellevue = 5 [if random-float 1 < 0.90 [move-in-bellevue]] end to move-in-bellevue lt random 360 forward 1 if count bellevuers in-radius 1 > 0 [if color = orange [plus-bellevuers-knowledge plus-highlanders-knowledge bellevue-commerce highlands-commerce] if color = black [plus-bellevuers-knowledge] if color = white [plus-bellevuers-knowledge plus-unionists-knowledge bellevue-commerce eastern-union-commerce] if color = yellow [plus-bellevuers-knowledge plus-coldwaterers-knowledge bellevue-commerce coldwaters-commerce]] end to visit-eastern-union if facilities-in-eastern-union = 0 [if random-float 1 < 0.05 [move-in-eastern-union]] if facilities-in-eastern-union = 1 [if random-float 1 < 0.10 [move-in-eastern-union]] if facilities-in-eastern-union = 2 [if random-float 1 < 0.30 [move-in-eastern-union]] if facilities-in-eastern-union = 3 [if random-float 1 < 0.50 [move-in-eastern-union]] if facilities-in-eastern-union = 4 [if random-float 1 < 0.70 [move-in-eastern-union]] if facilities-in-eastern-union = 5 [if random-float 1 < 0.90 [move-in-eastern-union]] end to move-in-eastern-union lt random 360 forward 1 if count unionists in-radius 1 > 0 [if color = orange [plus-unionists-knowledge plus-highlanders-knowledge eastern-union-commerce highlands-commerce] if color = black [plus-unionists-knowledge plus-bellevuers-knowledge eastern-union-commerce bellevue-commerce] if color = white [plus-unionists-knowledge] if color = yellow [plus-unionists-knowledge plus-coldwaterers-knowledge eastern-union-commerce coldwaters-commerce]] end to visit-coldwaters if facilities-in-coldwaters = 0 [if random-float 1 < 0.05 [move-in-coldwaters]] if facilities-in-coldwaters = 1 [if random-float 1 < 0.10 [move-in-coldwaters]] if facilities-in-coldwaters = 2 [if random-float 1 < 0.30 [move-in-coldwaters]] if facilities-in-coldwaters = 3 [if random-float 1 < 0.50 [move-in-coldwaters]] if facilities-in-coldwaters = 4 [if random-float 1 < 0.70 [move-in-coldwaters]] if facilities-in-coldwaters = 5 [if random-float 1 < 0.90 [move-in-coldwaters]] end to move-in-coldwaters lt random 360 forward 1 if count coldwaterers in-radius 1 > 0 [if color = orange [plus-coldwaterers-knowledge plus-highlanders-knowledge coldwaters-commerce highlands-commerce] if color = black [plus-coldwaterers-knowledge plus-bellevuers-knowledge coldwaters-commerce bellevue-commerce] if color = white [plus-coldwaterers-knowledge plus-unionists-knowledge coldwaters-commerce eastern-union-commerce] if color = yellow [plus-coldwaterers-knowledge]] end to plus-highlanders-knowledge set highlanders-tacit-knowledge highlanders-tacit-knowledge + 1 set highlanders-explicit-knowledge highlanders-explicit-knowledge + 4 end to plus-bellevuers-knowledge set bellevuers-tacit-knowledge bellevuers-tacit-knowledge + 1 set bellevuers-explicit-knowledge bellevuers-explicit-knowledge + 4 end to plus-unionists-knowledge set unionists-tacit-knowledge unionists-tacit-knowledge + 1 set unionists-explicit-knowledge unionists-explicit-knowledge + 4 end to plus-coldwaterers-knowledge set coldwaterers-tacit-knowledge coldwaterers-tacit-knowledge + 1 set coldwaterers-explicit-knowledge coldwaterers-explicit-knowledge + 4 end to highlands-commerce set highlands-transaction-number highlands-transaction-number + (highlanders-tacit-knowledge) * 3 + highlanders-explicit-knowledge end to bellevue-commerce set bellevue-transaction-number bellevue-transaction-number + (bellevuers-tacit-knowledge) * 3 + bellevuers-explicit-knowledge end to eastern-union-commerce set eastern-union-transaction-number eastern-union-transaction-number + (unionists-tacit-knowledge) * 3 + unionists-explicit-knowledge end to coldwaters-commerce set coldwaters-transaction-number coldwaters-transaction-number + (coldwaterers-tacit-knowledge) * 3 + coldwaterers-explicit-knowledge end @#$#@#$#@ GRAPHICS-WINDOW 228 26 668 487 16 16 13.030303030303031 1 10 1 1 1 0 0 0 1 -16 16 -16 16 0 0 1 ticks 30.0 BUTTON 77 26 140 59 NIL setup NIL 1 T OBSERVER NIL NIL NIL NIL 1 BUTTON 743 25 806 58 NIL go T 1 T OBSERVER NIL NIL NIL NIL 1 MONITOR 13 73 210 118 commerce with highlands highlands-transaction-number 17 1 11 SLIDER 13 128 211 161 facilities-in-highlands facilities-in-highlands 0 5 5 1 1 NIL HORIZONTAL SLIDER 12 171 209 204 highlanders-explicit-knowledge highlanders-explicit-knowledge 0 1000 100 1 1 NIL HORIZONTAL SLIDER 12 215 208 248 highlanders-tacit-knowledge highlanders-tacit-knowledge 0 1000 75 1 1 NIL HORIZONTAL MONITOR 12 258 208 303 commerce with bellevue bellevue-transaction-number 17 1 11 SLIDER 11 311 208 344 facilities-in-bellevue facilities-in-bellevue 0 5 2 1 1 NIL HORIZONTAL SLIDER 11 349 208 382 bellevuers-explicit-knowledge bellevuers-explicit-knowledge 0 1000 75 1 1 NIL HORIZONTAL SLIDER 11 391 209 424 bellevuers-tacit-knowledge bellevuers-tacit-knowledge 0 1000 50 1 1 NIL HORIZONTAL MONITOR 683 75 882 120 commerce with eastern-union eastern-union-transaction-number 17 1 11 SLIDER 684 130 882 163 facilities-in-eastern-union facilities-in-eastern-union 0 5 4 1 1 NIL HORIZONTAL SLIDER 685 171 882 204 unionists-explicit-knowledge unionists-explicit-knowledge 0 1000 90 1 1 NIL HORIZONTAL SLIDER 685 214 882 247 unionists-tacit-knowledge unionists-tacit-knowledge 0 1000 60 1 1 NIL HORIZONTAL MONITOR 686 258 883 303 commerce with coldwaters coldwaters-transaction-number 17 1 11 SLIDER 686 311 883 344 facilities-in-coldwaters facilities-in-coldwaters 0 5 4 1 1 NIL HORIZONTAL SLIDER 686 349 884 382 coldwaterers-explicit-knowledge coldwaterers-explicit-knowledge 0 1000 50 1 1 NIL HORIZONTAL SLIDER 686 392 884 425 coldwaterers-tacit-knowledge coldwaterers-tacit-knowledge 0 1000 20 1 1 NIL HORIZONTAL PLOT 684 445 884 595 expatriation time totals 0.0 10.0 0.0 10.0 true false "" "" PENS "turtles on highlands" 1.0 0 -2674135 true "" "plot count turtles with [pcolor = red]" "turltes on bellevue" 1.0 0 -10899396 true "" "plot count turtles with [pcolor = green]" "turtles on eastern-union" 1.0 0 -2064490 true "" "plot count turtles with [pcolor = pink]" "turtles on coldwaters" 1.0 0 -13345367 true "" "plot count turtles with [pcolor = blue]" PLOT 18 446 218 596 commerce time commerces 0.0 10.0 0.0 10.0 true false "" "" PENS "commerce with highlands" 1.0 0 -2674135 true "" "plot highlands-transaction-number" "commerce with bellevue" 1.0 0 -10899396 true "" "plot bellevue-transaction-number" "commerce with eastern-union" 1.0 0 -2064490 true "" "plot eastern-union-transaction-number" "commerce with coldwaters" 1.0 0 -13345367 true "" "plot coldwaters-transaction-number" TEXTBOX 247 511 661 651 Highlands (red patch), bellevue (green patch), eastern-union (pink patch) and coldwaters (blue patch) are the four imaginary states. Highlanders (orange turtles), bellevuers (black turtles), unionists (white tutles) and coldwaterers (yellow turtles) are their inhabitants. 11 0.0 1 PLOT 202 607 402 757 tacit knowledge time totals 0.0 10.0 0.0 10.0 true false "" "" PENS "highlanders-tacit-knowledge" 1.0 0 -2674135 true "" "plot highlanders-tacit-knowledge" "bellevuers-tacit-knowledge" 1.0 0 -10899396 true "" "plot bellevuers-tacit-knowledge" "unionists-tacit-knowledge" 1.0 0 -2064490 true "" "plot unionists-tacit-knowledge" "coldwaterers-tacit-knowledge" 1.0 0 -13345367 true "" "plot coldwaterers-tacit-knowledge" PLOT 514 607 714 757 explicit knowledge time totals 0.0 10.0 0.0 10.0 true false "" "" PENS "highlanders-explicit-knowledge" 1.0 0 -2674135 true "" "plot highlanders-explicit-knowledge" "bellevuers-explicit-knowledge" 1.0 0 -10899396 true "" "plot bellevuers-explicit-knowledge" "unionists-explicit-knowledge" 1.0 0 -2064490 true "" "plot unionists-explicit-knowledge" "coldwaterers-explicit-knowledge" 1.0 0 -13345367 true "" "plot coldwaterers-explicit-knowledge" @#$#@#$#@ ## WHAT IS IT? The model deals with the research of Hausman and Hidalgo about the complexity, according to which an economy is complex when is able to product different items. This ability is given by the knowledges that people have, both explicit knowledge (what the person is conscious to know) and tacit knowledge (the deep knowledge). The model also deals with the growth of trade and knowledge relating to facilities. ## HOW IT WORKS The four states are represented by four patches of different colours. The four populations are represented by turtles of different colours. When people of the same population meet, they swap their knowledges, so the level of knowledges of the whole population grow; the growth of tacit knowledge is slower than that of explicit, because it is deeper and so more difficult to modify. When people from different countries meet, they trade and swap their knowledges. The possibility people have to move (and so to meet each other) is influenced by the level of facilities in the pacth on which they are at the moment. ## HOW TO USE IT Before playing SETUP it is possible to modify by sliders: * the level of the facilities of each country * the level of tacit knowledge of each population * the level of explicit knowledge of each population. By playing SETUP we create the states and the populations (at the beginning each turtle is on its own patch). By playng GO the turtles move, meet each other, trade, and swap knowledges. ## THINGS TO NOTICE See the report. ## THINGS TO TRY It could be interesting to try to modify the values of knowledges and facilities in order to notice of the trades modify. ## EXTENDING THE MODEL It could be interesting to create a relationship between knowledges and the level of facilities: maybe facilities may grow when the knowledges grow. ## NETLOGO FEATURES (interesting or unusual features of NetLogo that the model uses, particularly in the Code tab; or where workarounds were needed for missing features) ## RELATED MODELS (models in the NetLogo Models Library and elsewhere which are of related interest) ## CREDITS AND REFERENCES This model was created as final exam of the cours "dal cervello sociale all'emergere della società", directed by Prof. Ferdinando Rossi, in Scuola di Studi Superiori dell'Universià di Torino. 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