Final Project

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Binyang Xu (Author)

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Click to Run Model


breed [banks bank]
breed [consumers consumer]

undirected-link-breed [loanlinks loanlink]
undirected-link-breed [banklinks banklink]

banks-own [
  bank-reserves
  bank-standards ;;this denotes whether or not a bank is willing to take on a high risk customer
]

consumers-own [
  reliability ;;a consumer's ability to pay back loans
  loan
]

to setup
  ca
  setup-banks
  setup-consumers
  network-banks
end 

to setup-banks
  create-banks 10 [set bank-reserves random 30 
    set shape "circle" 
    set color red 
    set bank-standards random 100
    move-to one-of patches]
end 

to setup-consumers
  create-consumers 100 [set reliability random 100
    set shape "sheep" 
    set color blue
    move-to one-of patches]
end 

to network-banks
  ask banks [create-banklink-with one-of other banks]
end 

to bank-failure
  if count my-banklinks > 0 [ask one-of banklink-neighbors [set bank-reserves bank-reserves - interbank-loan-amount]]
  if count my-banklinks > 0 [ask one-of banklink-neighbors [set bank-reserves bank-reserves - interbank-loan-amount]]
      if count my-banklinks > 0 [ask one-of banklink-neighbors [set bank-reserves bank-reserves - interbank-loan-amount] ]
  ;;repeat this process of subtracting money lost by banks from interbank loans as many times
  ;;as seems appropriate
  die
end 

to go
ask banks [if bank-reserves <= 0 [bank-failure]] ;;banks fail when they're out of reserves
ask consumers [right random 180 left random 180 fd 1]
ask consumers [if count my-loanlinks = 0 [network-with-bank]] 
ask consumers [if reliability < 20 [if random 100 < 75 [if count my-links > 0 [ask one-of loanlink-neighbors [loseloan]
      set loan 0 die]]]]
if count banks = 0 [stop]
tick
end 

to loseloan
set bank-reserves bank-reserves - loan-amount
end    

to network-with-bank
  if count banks > 0 [
  if loan = 0 [ask my-links [die]
  create-loanlink-with one-of banks 
  ask one-of loanlink-neighbors [set bank-reserves bank-reserves - loan-amount]
  set loan loan-amount]]
end

There are 2 versions of this model.

		Uploaded by	When	Description	Download
		Binyang Xu	almost 13 years ago	very much a v0	Download this version
		Binyang Xu	almost 13 years ago	Initial upload	Download this version

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