Beta version, Macroeconomic Agent Based Model

Beta version, Macroeconomic Agent Based Model preview image

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Foto elder silva (Author)

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mabm 

Tagged by elder silva almost 2 years ago

macroeconomy 

Tagged by elder silva almost 2 years ago

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Comments and Questions

Incompatibility with NetLogo 6 (Question)

The code doesn't run on the version 6 of the software. The model is very interesting. It is a first macromodel for learning how to use NetLogo for this. Thanks!

Posted 5 months ago

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breed               [ Banks        Bank      ]
breed               [ Firms        Firm      ]
breed               [ HouseHolds   Household ]
directed-link-breed [ Hireds       Hired     ]
directed-link-breed [ Owners       Owner     ]

Globals [
  GDP
  LevelPrice
  levelPriceK
  UnEmpRate
  CountK-Prod
  CountK-Cons
  CountProd
  CountCons
  v1
  v2
  v3
  v4
  betha01
  alpha01
  betha02
  alpha02
]

Banks-own [
  Equity_Total
  Equity_K-Firms
  Equity_C-Firms
  Equity_Rentists
  Equity_Workers
  Equity_Loans
  Profit
  ]

Firms-own [
  K-Firms?
  Production
  Price
  Vacancy
  Demand
  N_workers
  Kapital
  Kapital_memory
  Investiment
  CapUtil
  DepositBank
  Production_t-1
  Profit
  ForeCastError
  CurrentIntRate
  LeverageRatio
  FinancialGap
  Loans
  ]

Households-own [
  Worker?
  HumanWealth
  ConsumeDesire
  DepositBank
  Own?
  Hired?
  Income
  ]

;__________________________________________________________________________________________________________________________________________________________________________________________

;--------------------------------------------------------------------------------------->>>>>>>>>>>>>>>> To Setup <<<<<<<<<<<<<<<<<<<<<<---------------------------------------------------
;__________________________________________________________________________________________________________________________________________________________________________________________

to setup

  clear-all

  ;setup Globals                                                               *******************

  set GDP                  0
  set LevelPrice           InitialPrice
  set LevelPriceK          InitialPrice
  set UnEmpRate            1
  set CountK-Prod          0
  set CountK-Cons          0
  set CountProd            0
  set CountCons            0
  set v1 [ ] set v2 [ ] set v3 [ ] set v4 [ ]
  set betha01 0 set alpha01 0

  ;creating the Bank

  create-Banks 1 [
    setxy                 4.5 12.5
    set shape             "house"
    set size              1
    set color             yellow
    set Equity_Total      0
    set Equity_K-Firms    0
    set Equity_C-Firms    0
    set Equity_Rentists   0
    set Equity_Workers    0
    set Equity_Loans      InitialEquityBank
    set Profit            0
    ]

  ;generate firms and rentists                                                 *************

  let i 0

  while [ i < 10 ] [
    let j 0

    while [ j < 25 ] [

      ifelse i > 7 [

        ;create K-Firms type                                                 +++++++++++

        create-Firms 1 [
          setxy                 i j
          set shape             "house"
          set size              0.85
          set color             2
          set K-Firms?          true
          set Production        InitialProdK-Firms
          set CountK-Prod       CountK-Prod + Production
          set Price             InitialPrice
          set Vacancy           2
          set Demand            0
          set N_workers         0
          set Kapital           ""
          set Kapital_memory    ""
          set Investiment       0
          set CapUtil           ""
          set DepositBank       InitialLiquidity
          set Production_t-1    InitialProdK-Firms
          set CurrentIntRate    RiskFreeIntRate
          set LeverageRatio     0
          set Loans             0
          ]
        ] [

        ;create C-Firms type                                                 +++++++++++++

        create-Firms 1 [
          setxy                 i j
          set shape             "house"
          set size              0.85
          set color             4
          set K-Firms?          false
          set Production        InitialProdC-Firms
          set CountProd         CountProd + Production
          set Price             InitialPrice
          set Vacancy           2
          set Demand            0
          set N_workers         0
          set Kapital           K_initial
          set Kapital_memory    K_initial
          set Investiment       0
          set CapUtil           1
          set DepositBank       InitialLiquidity
          set Production_t-1    InitialProdC-Firms
          set CurrentIntRate    RiskFreeIntRate
          set LeverageRatio     0
          set Loans             0
          ]
        ]

        ;setup rentists as a owners of the firms                             +++++++++++++++++++++

        create-Households 1 [
          setxy                 i j
          set shape             "person"
          set size              0.65
          set color             white
          set Worker?           false
          set HumanWealth       1
          set ConsumeDesire     0
          set DepositBank       InitialHouseholdsAssets
          set Own?              true
          set Hired?            ""
          set Income            0
          create-Owner-from one-of Firms-here [ set hidden? true ] ;this link shows who is the firm's owner
          ]

      set j j + 1
      ]
    set i i + 1
    ]

  ;setup Workers                                                              ******************

  create-Households NumberWorkers [
    setxy                 random 10 random 25
    set shape             "person"
    set size              0.45
    set color             blue
    set Worker?           true
    set HumanWealth       1
    set ConsumeDesire     0
    set DepositBank       InitialHouseholdsAssets
    set Own?              ""
    set Hired?            false
    set Income            0
    ]

  ask Banks [
    set Equity_K-Firms   sum [DepositBank] of Firms      with [K-Firms?]
    set Equity_C-Firms   sum [DepositBank] of Firms      with [not K-Firms?]
    set Equity_Rentists  sum [DepositBank] of Households with [not Worker?]
    set Equity_Workers   sum [DepositBank] of Households with [Worker?]
    set Equity_Total     InitialEquityBank + Equity_K-Firms + Equity_C-Firms + Equity_Rentists + Equity_Workers
    ]

  reset-ticks
end 

;__________________________________________________________________________________________________________________________________________________________________________________________

;--------------------------------------------------------------------------------------->>>>>>>>>>>>>>>> to Go  <<<<<<<<<<<<<<<<<<<<<<<<<<-------------------------------------------------
;__________________________________________________________________________________________________________________________________________________________________________________________

to go

  jobMarket
  conMarket
  kapMarket
  bankManagement
  toProduce
  growPopulation
  tick
end 


;__________________________________________________________________________________________________________________________________________________________________________________________

;--------------------------------------------------------------------------------------->>>>>>>>>>>>>>>> job market <<<<<<<<<<<<<<<<<<<<<<-------------------------------------------------
;__________________________________________________________________________________________________________________________________________________________________________________________

to jobMarket

  ask Households with [Worker?] [

    if Hired?   = false [
      let i                0
      let Vacancy?         false

      while [ Hired? =     False    and     i < 5 ] [

        setxy              random 10     random 25

        ask one-of  Firms-here [
          if Vacancy   >     0 [
            set Vacancy?   true
            set Vacancy    Vacancy - 1
            set N_Workers  N_Workers + 1
            ]
          ]

        if Vacancy?        = true [
          set Hired?       true
          set Income       Wage
          create-Hired-to  one-of Firms-here [ set hidden? true ]  ;create a link betwen the worker and the Firm, this will end when the work is fired
          ]

        set i    i + 1
        ];end while
      ];end if Hired? = false
    ];end ask Workers

  set UnEmpRate (count Households with [Worker?] - count Hireds) / count Households with [Worker?]
end 

;__________________________________________________________________________________________________________________________________________________________________________________________

;--------------------------------------------------------------------------------------->>>>>>>>>>>>>>>> Consume Market <<<<<<<<<<<<<<<<<<<<<<---------------------------------------------
;__________________________________________________________________________________________________________________________________________________________________________________________

to conMarket

  let Revenue        0
  let Consume        CountCons

  ask Households [

    set HumanWealth          HumWealthParam   *   HumanWealth     +  (1 - HumWealthParam) * Income
    set ConsumeDesire        HumanWealth    +  DepBankParam  *   DepositBank ; this means how the agent will want to consume
    let CsD                  ConsumeDesire
    let Who01                ""
    let Who02                ""
    let Pri01                ""
    let Pri02                ""
    let Pro01                ""
    let Pro02                ""
;now they will check two diffents firms and buy at the better, if it is not enoght at the first firm the agent try to buy at the second, if not he is forced to save
    setxy                    random 8 random 25
    ask one-of Firms-here [
      set Who01              Who
      set Pri01              Price
      set Pro01              CsD / Price
    ]

    setxy                    random 8 random 25
    ask one-of Firms-here [
      set Who02              Who
      set Pri02              Price
      set Pro02              CsD / Price
    ]

    while [ Who01 = Who02 ] [

      setxy                    random 8 random 25
      ask one-of Firms-here [
        set Who02              Who
        set Pri02              Price
        set Pro02              CsD / Price
        ]

      ];end While...

    ifelse Pri01 <= Pri02 [

      ask Firm Who01 [

        ifelse Production > CsD / Price [

          set Demand         Demand        + CsD / Price
          set CountCons      CountCons     + CsD / Price
          set DepositBank    DepositBank   + CsD
          set Csd            0
          set Production     Production    - Pro01

          ] [;secon part of ifelse Production > CsD / Price

          ifelse Production > 0 [

            set Demand         Demand        + CsD / Price
            set CountCons      CountCons     + Production
            set DepositBank    DepositBank   + Production * Price
            set Csd            CsD           - Production * Price
            set Production                   0

            ] [

          set Demand         Demand        + CsD / Price
          set CountCons      CountCons     + 0
          set DepositBank    DepositBank   + 0
          set Csd            CsD           - 0
          set Production                     0

            ];end ifelse Production > 0
          ];end ifelse Production > CsD / Price
        ];end ask Firm Who01

      if CsD > 0 [

      ask Firm Who02 [

        ifelse Production > CsD / Price [

          set Demand         Demand        + CsD / Price
          set CountCons      CountCons     + CsD / Price
          set DepositBank    DepositBank   + CsD
          set Production     Production    - CsD / Price
          set Csd                            0


          ] [;second part of ifelse Production > CsD / Price

          ifelse Production > 0 [

            set Demand         Demand        + CsD / Price
            set CountCons      CountCons     + Production
            set Consume      Consume           + Production
            set Csd            CsD           - Production * Price
            set Production                     0

            ] [

            set Demand         Demand        + CsD / Price
            set CountCons      CountCons     + 0
            set DepositBank    DepositBank   + 0
            set Csd            CsD           - 0
            set Production                     0

            ];end ifelse Production > 0
          ];end ifelse Production > CsD / Price
        ];end ask Firm Who02

        ];end If CsD > 0

      ] [;second part of ifelse Pri01 <= Pri02

      ask Firm Who02 [

        ifelse Production > CsD / Price [

          set Demand         Demand        + CsD / Price
          set CountCons      CountCons     + CsD / Price
          set DepositBank    DepositBank   + CsD
          set Production     Production    - CsD / Price
          set Csd                            0


          ] [;secon part of ifelse Production > CsD / Price

          ifelse Production > 0 [

            set Demand         Demand        + CsD / Price
            set CountCons      CountCons     + Production
            set DepositBank    DepositBank   + Production * Price
            set Csd            CsD           - Production * Price
            set Production                     0

            ] [

          set Demand         Demand        + CsD / Price
          set CountCons      CountCons     + 0
          set DepositBank    DepositBank   + 0
          set Csd            CsD           - 0
          set Production                     0

            ];end ifelse Production > 0
          ];end ifelse Production > CsD / Price
        ];end ask Firm Who02

      if CsD > 0 [

      ask Firm Who01 [

        ifelse Production > CsD / Price [

          set Demand         Demand        + CsD / Price
          set CountCons      CountCons     + CsD / Price
          set DepositBank    DepositBank   + CsD
          set Production     Production    - CsD / Price
          set Csd                            0

          ] [;secon part of ifelse Production > CsD / Price

          ifelse Production > 0 [

            set Demand         Demand        + CsD / Price
            set CountCons      CountCons     + Production
            set DepositBank    DepositBank   + Production * Price
            set Csd            CsD           - Production * Price
            set Production                     0

            ] [

            set Demand         Demand        + CsD / Price
            set CountCons      CountCons     + 0
            set DepositBank    DepositBank   + 0
            set Csd            CsD           - 0
            set Production                     0

            ];end ifelse Production > 0
          ];end ifelse Production > CsD / Price
        ];end ask Firm Who01

        ];end If CsD > 0**********************************************************

      ];end ifelse Pri01 <= Pri02

      ifelse    Worker?     [set DepositBank        DepositBank + Income - (ConsumeDesire - CsD)] [ set DepositBank        DepositBank - (ConsumeDesire - CsD) ]
      set       Revenue     Revenue   +  ConsumeDesire - CsD

    ];end ask households ////////////////////////////////////////////////////////////////////////\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

  set Consume         CountCons  -  Consume
  set LevelPrice      Revenue    /  Consume
end 

;__________________________________________________________________________________________________________________________________________________________________________________________

;--------------------------------------------------------------------------------------->>>>>>>>>>>>>>>> To Produce <<<<<<<<<<<<<<<<<<<<<<-------------------------------------------------
;__________________________________________________________________________________________________________________________________________________________________________________________

to toProduce

  set GDP                    0

  ask Firms with [ not K-Firms? ] [

    set Vacancy               0
    set Profit                max list         0 ((Production_t-1 - Production) * Price - N_Workers * Wage)
    set Production            min list         (N_Workers  * N_Prod) (Kapital * K_Prod)
    set GDP                   GDP              + Production
    set CountProd             CountProd        + Production
    set DepositBank           DepositBank      - (N_Workers * Wage) - (Profit * DividendPayoutRatio)

    ;...........now, how much will need to produce next period..........

    let DesireProduction      ""
    set ForeCastError         Demand           - Production_t-1

    ifelse  (ForeCastError >= 0  and Price >= LevelPrice) [

      set DesireProduction    Production_t-1   + QtdAdjParam * ForeCastError

    ] [

    ifelse (ForeCastError < 0 and Price < LevelPrice) [

      set DesireProduction    Production_t-1   + QtdAdjParam * ForeCastError

      ]

    [ set DesireProduction    Production_t-1 ]

      ];end desireproduction seting

    let MaxUtilKap            (Kapital         * K_prod) / N_Prod
    let Need_Workers          max list 0 (  min list (1 + int (DesireProduction / N_Prod))   (1 + int MaxUtilKap)  )

    ifelse Need_Workers <= N_Workers [ ; then the firm to fired some employee

      while [ (Need_Workers < N_Workers)  or N_Workers = 0] [

        ask one-of my-in-Hireds [
          ask other-end [
            set Hired?     false
            set Income     0
            ]
          die
          ]

        set N_Workers       N_Workers - 1
        ];end while...

      ] [;end first part of Need_workers <= N_Workers

      set Vacancy           Need_workers - N_Workers ;here the firm to hired, will open a vacancy and try to fill next period

      ];end ifelse Need_Workers...

    if ForeCastError   <=   0   and   Price >  LevelPrice  [ set Price    Price * (1 - random-float 1 * 0.10)]
    if ForeCastError   >    0   and   Price <= LevelPrice  [ set Price    Price * (1 + random-float 1 * 0.10)]

    set Demand               0
    set CapUtil              Production / (Kapital * K_Prod)
    set Production_t-1       Production


    ;Kapital depreciation end the Kapital Memory

    if ticks > 1            [ set Kapital_memory    (MemInv * Kapital_memory) + (1 - MemInv ) * Kapital ]
    set Kapital             Kapital * (1 - Depr * CapUtil)

  ];end ask C-Firms


; now produce at K-Firms........................................................................................................................................................

  ask Firms with [ K-Firms? ] [

    set Vacancy               0
    set Profit                max list           0 (Production_t-1 * Price)
    set GDP                   GDP                + N_Workers * N_Prod
    set CountK-Prod           CountK-Prod        + N_Workers * N_Prod
    set DepositBank           DepositBank        - (N_Workers * Wage) - (Profit * DividendPayoutRatio)

    let DesireProduction      ""
    set ForeCastError         Demand           - Production_t-1

    ifelse  (ForeCastError >= 0  and Price >= LevelPriceK) [

      set DesireProduction    max list 0 (Production_t-1   + QtdAdjParam * ForeCastError - Production)

    ] [

    ifelse (ForeCastError < 0 and Price < LevelPriceK) [

      set DesireProduction    max list 0 (Production_t-1   + QtdAdjParam * ForeCastError - Production)

      ]

    [ set DesireProduction    max list 0 (Production_t-1 - Production)]

      ];end desireproduction seting

    set Production            N_Workers  * N_Prod + (1 - Depr * 16) * Production
    set Production_t-1        N_Workers  * N_Prod
    let Need_Workers          1 + int (DesireProduction / N_Prod)
    if DesireProduction <= 0  [set Need_Workers 0]

    ifelse Need_Workers <= N_Workers [

      while [ Need_Workers < N_Workers ] [

        ask one-of my-in-Hireds [
          ask other-end [
            set Hired?     false
            set Income     0
            ]
          die
          ]

        set N_Workers       N_Workers - 1
        ];end while...

      ] [;end first part of Need_workers <= N_Workers

      set Vacancy           Need_workers - N_Workers

      ];end ifelse Need_Workers...

    if ForeCastError   <=     0   and   Price >    LevelPriceK  [ set Price    Price * (1 - random-float 1 * 0.10)]
    if ForeCastError   >      0   and   Price <=   LevelPricek  [ set Price    Price * (1 + random-float 1 * 0.10)]

    set Demand               0

    ];end ask K-Firms ............................................................................................


  ask Households with [ not Worker? ] [
    let Dividend            0
    ask one-of my-in-Owners [
      ask other-end [
        if Profit             > 0 [ set Dividend Profit * 0.20 ]
      ]
      ]
    set DepositBank           DepositBank + Dividend
    set Income                Dividend
    ]
end 


;__________________________________________________________________________________________________________________________________________________________________________________________

;--------------------------------------------------------------------------------------->>>>>>>>>>>>>>>> To kapMarket <<<<<<<<<<<<<<<<<<<<<<-----------------------------------------------
;__________________________________________________________________________________________________________________________________________________________________________________________

to kapMarket

  set CountK-Cons           0
  let Revenue               0

  ask Firms with [ not K-Firms?] [

    if random-float 1 < ProbInv [

    ;here lets think CsD as an Investiment Desire

    let CsD max list        0     ((((1 / DesCapUt) + (Depr / ProbInv)) * Kapital_memory) - (1 - CapUtil * Depr) * Kapital)
    let Debts               0
    let Who01               ""
    let Pri01               ""
    let Who02               ""
    let Pri02               ""
    let X                   xcor
    let Y                   ycor

;searching for the better price, the Consumer Firm will try to buy the Capital she needs at the better price

    setxy (random 2 + 8) random 25
    ask one-of other Firms-Here [
      set Who01             who
      set Pri01             Price
      ]

    setxy (random 2 + 8) random 25
    ask one-of other Firms-Here [
      set Who02             who
      set Pri02             Price
      ]

    while [Who01 = Who02] [

      setxy (random 2 + 8) random 25
      ask one-of other Firms-Here [
        set Who02             who
        set Pri02             Price
      ]

      ];end while who01 = who02

    let Pro01 max list        0 (DepositBank  / Pri01)
    let Pro02 max list        0 (DepositBank  / Pri02)
    set CsD   min (list       CsD Pro01 Pro02)
    set Investiment           CsD

    ifelse Pri01 <= Pri02 [

      ask Firm Who01 [

        ifelse Production >= CsD [

          set Demand          CsD * 1
          set CountK-Cons     CountK-Cons  + CsD
          set Revenue         Revenue      + CsD  * Price
          set DepositBank     DepositBank  + CsD  * Price
          set Debts           Debts        + CsD  * Price
          set Production      Production   - CsD
          set CsD             0

          ] [

          ifelse Production > 0 [

            set Demand          CsD * 1
            set CountK-Cons     CountK-Cons  + Production
            set Revenue         Revenue      + Production  * Price
            set DepositBank     DepositBank  + Production  * Price
            set Debts           Debts        + Production  * Price
            set CsD             CsD          - Production
            set Production      0

            ] [

          set Demand          CsD * 1
          set CountK-Cons     CountK-Cons  + 0
          set Revenue         Revenue      + 0
          set DepositBank     DepositBank  + 0
          set Debts           Debts        + 0
          set Production      0
          set CsD             CsD

            ];end ifelse production > 0

          ];end ifelse Production >= CsD

        ];end ask Firm Who01

      if CsD > 0 [

        ask Firm Who02 [

          ifelse Production >= CsD [

            set Demand          CsD * 1
            set CountK-Cons     CountK-Cons  + CsD
            set Revenue         Revenue      + CsD  * Price
            set DepositBank     DepositBank  + CsD  * Price
            set Debts           Debts        + CsD  * Price
            set Production      Production   - CsD
            set CsD             0

          ] [

          ifelse Production > 0 [

            set Demand          CsD * 1
            set CountK-Cons     CountK-Cons  + Production
            set Revenue         Revenue      + Production  * Price
            set DepositBank     DepositBank  + Production  * Price
            set Debts           Debts        + Production  * Price
            set CsD             CsD          - Production
            set Production      0

          ] [

          set Demand          CsD * 1
          set CountK-Cons     CountK-Cons  + 0
          set Revenue         Revenue      + 0
          set DepositBank     DepositBank  + 0
          set Debts           Debts        + 0
          set Production      0
          set CsD             CsD

          ];end ifelse production > 0
          ];end ifelse Production >= CsD
        ];end ask Firm Who02
        ];end if CsD > 0

      ] [

      ask Firm Who02 [

        ifelse Production >= CsD [

          set Demand          CsD * 1
          ;set GDP             GDP          + CsD
          set CountK-Cons     CountK-Cons  + CsD
          set Revenue         Revenue      + CsD  * Price
          set DepositBank     DepositBank  + CsD  * Price
          set Debts           Debts        + CsD  * Price
          set Production      Production   - CsD
          set CsD             0

          ] [

          ifelse Production > 0 [

            set Demand          CsD * 1
            set CountK-Cons     CountK-Cons  + Production
            set Revenue         Revenue      + Production  * Price
            set DepositBank     DepositBank  + Production  * Price
            set Debts           Debts        + Production  * Price
            set CsD             CsD          - Production
            set Production      0

            ] [

          set Demand          CsD * 1
          set CountK-Cons     CountK-Cons  + 0
          set Revenue         Revenue      + 0
          set DepositBank     DepositBank  + 0
          set Debts           Debts        + 0
          set Production      0
          set CsD             CsD

            ];end ifelse production > 0
          ];end ifelse Production >= CsD
        ];end ask Firm Who02

      if CsD > 0 [

        ask Firm Who01 [

          ifelse Production >= CsD [

            set Demand          CsD * 1
            set CountK-Cons     CountK-Cons  + CsD
            set Revenue         Revenue      + CsD  * Price
            set DepositBank     DepositBank  + CsD  * Price
            set Debts           Debts        + CsD  * Price
            set Production      Production   - CsD
            set CsD             0

          ] [

          ifelse Production > 0 [

            set Demand          CsD * 1
            set CountK-Cons     CountK-Cons  + Production
            set Revenue         Revenue      + Production  * Price
            set DepositBank     DepositBank  + Production  * Price
            set Debts           Debts        + Production  * Price
            set CsD             CsD          - Production
            set Production      0

          ] [

          set Demand          CsD * 1
          set CountK-Cons     CountK-Cons  + 0
          set Revenue         Revenue      + 0
          set DepositBank     DepositBank  + 0
          set Debts           Debts        + 0
          set Production      0
          set CsD             CsD

          ];end ifelse production > 0
          ];end ifelse Production >= CsD
        ];end ask Firm Who01
        ];end if CsD > 0
      ];end ifelse Pri01 <= Pri02


    setxy X Y
    set Investiment           Investiment  - CsD
    set DepositBank           DepositBank  - Debts
    set Kapital               Kapital      + Investiment

    ];end ask C-Firms

  ];end if random < ProbInvs

  if Countk-Cons > 0 [ set LevelPriceK           Revenue      /   CountK-Cons ]
end  ; to kapitalmarket

;__________________________________________________________________________________________________________________________________________________________________________________________

;--------------------------------------------------------------------------------------->>>>>>>>>>>>>>>> To BankManagement <<<<<<<<<<<<<<<<<<<<<<------------------------------------------
;__________________________________________________________________________________________________________________________________________________________________________________________

to bankManagement

  ask Firms with [not K-Firms?] [

    ifelse ticks < Tc [
      set v1 lput (DepositBank * LeverageRatio) v1
      ifelse DepositBank > 0 [ set v2 lput 1 v2 ] [ set v2 lput 0 v2 ]
    ] [
    set v1 lput LeverageRatio v1 set v1 remove-item 0 v1
    ifelse DepositBank > 0 [ set v2 lput 1 v2 ] [ set v2 lput 0 v2 ] set v2 remove-item 0 v2
    ]
    ];end ask C-firms

  ask Firms with [K-Firms?] [

    ifelse ticks < (Tc * 4) [
      set v3 lput (DepositBank * LeverageRatio) v3
      ifelse DepositBank > 0 [ set v4 lput 1 v4 ] [ set v4 lput 0 v4 ]
    ] [
    set v3 lput LeverageRatio v3 set v3 remove-item 0 v3
    ifelse DepositBank > 0 [ set v4 lput 1 v4 ] [ set v4 lput 0 v4 ] set v4 remove-item 0 v4
    ]
    ];end ask K-firms
;~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
;~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


    ask Banks [

      let Loans?    Equity_Loans
      let Profit?   Profit

      ask Firms [

        set DepositBank      DepositBank - Loans * CurrentIntRate - Loans * InstallmentDebt
        set Loans            Loans       - Loans * InstallmentDebt
        set Profit?          Profit?     + Loans * CurrentIntRate
        set Loans?           Loans?      + Loans * InstallmentDebt
        set FinancialGap     max list 0  ((Vacancy + N_workers) * Wage + Investiment * LevelPriceK - DepositBank)
        set LeverageRatio    (FinancialGap    + Loans)          / (abs DepositBank + FinancialGap + Loans)
        let AvalibleFunding  min list (max list 0 (Loans?  * BankLossParam)) FinancialGap

          if AvalibleFunding > 0 [
            let Numerator        1 + (RiskFreeIntRate / InstallmentDebt)
            let Denominator      (1 - (1 - InstallmentDebt) ^ (1 + LeverageRatio * 0.10)) / InstallmentDebt
            set CurrentIntRate   (BankMarkup      * ((Numerator / Denominator) - InstallmentDebt)) / 100
            set Loans?           Loans?          - AvalibleFunding
            set DepositBank      DepositBank     + AvalibleFunding
            set Loans            Loans           + AvalibleFunding
          ];end if avaliblefunding

        ;bankrupicies

        if DepositBank <= 0 [

          ifelse K-Firms? [

            set Loans?          Loans?       +  Loans
            set Profit?         Profit?      -  Loans
            let Debts?          DepositBank

            ask one-of my-out-Owners [ ask other-end [ set DepositBank  DepositBank + Debts? - InitialLiquidity ] ] ;capitalist recaptilyze the firm

            while [ N_Workers > 0 ] [

              ask one-of my-in-Hireds [
                ask other-end [
                  set Hired?         false
                  set Income         0
                ]
                die
              ]

              set N_workers N_workers - 1
            ];end while...

            set Production        InitialProdK-Firms
            set CountK-Prod       CountK-Prod + Production
            set Price             LevelPrice
            set Vacancy           2
            set Demand            0
            set N_workers         0
            set K-Firms?          true
            set Kapital           ""
            set Kapital_memory    ""
            set Investiment       0
            set CapUtil           ""
            set DepositBank       InitialLiquidity
            set Production_t-1    InitialProdK-Firms
            set Loans             0
            set FinancialGap      0
            set LeverageRatio     0
            set CurrentIntRate    RiskFreeIntRate

            ] [;C-Firms...

            set Loans?          Loans?     + Loans
            set Profit?         Profit?    - Loans
            let Debts?          DepositBank

            ask one-of my-out-Owners [ ask other-end [ set DepositBank  DepositBank + Debts? - InitialLiquidity ] ] ;capitalist recaptilyze the firm

            while [ N_Workers > 0 ] [

              ask one-of my-in-Hireds [
                ask other-end [
                  set Hired?         false
                  set Income         0
                ]
                die
              ]

              set N_workers N_workers - 1
            ];end while...

            set Production        InitialProdC-Firms
            set CountProd         CountProd + Production
            set Price             LevelPrice
            set Vacancy           2
            set Demand            0
            set N_workers         0
            set K-Firms?          false
            set Kapital           K_initial
            set Kapital_memory    K_initial
            set Investiment       0
            set CapUtil           1
            set DepositBank       InitialLiquidity
            set Production_t-1    InitialProdC-Firms
            set Loans             0
            set FinancialGap      0
            set LeverageRatio     0
            set CurrentIntRate    RiskFreeIntRate

            ];end ifelse K-Firms?
          ];end if depositbank < 0

        ];end ask firms

      let Dividend?        max list 0 ((Profit? - Profit) * DividendPayoutRatio)
      ask Households with [Worker? = false] [ set DepositBank       DepositBank + (Dividend? / 250) ];the capitalist receive the profit from the bank

      set Profit           Profit?           - Dividend?
      set Equity_Loans     Loans?
      set Equity_K-Firms   sum [DepositBank] of Firms      with [K-Firms?]
      set Equity_C-Firms   sum [DepositBank] of Firms      with [not K-Firms?]
      set Equity_Rentists  sum [DepositBank] of Households with [not Worker?]
      set Equity_Workers   sum [DepositBank] of Households with [Worker?]
      set Equity_Total     Equity_Loans + Equity_K-Firms + Equity_C-Firms + Equity_Rentists + Equity_Workers + Profit

    ];end ask banks

    set betha01 betha v1 v2
    set alpha01 alpha (mean v1) (mean v2) betha01
    set betha02 betha v3 v4
    set alpha02 alpha (mean v3) (mean v4) betha02
end 

;__________________________________________________________________________________________________________________________________________________________________________________________

;--------------------------------------------------------------------------------------------Optional, population growth ------------------------------------------------------------------
;__________________________________________________________________________________________________________________________________________________________________________________________

to growPopulation
  if NewWorkers? = true [
    create-Households %Grow / 100 * count (Households with [Worker? = true]) [
    setxy                 random 10 random 25
    set shape             "person"
    set size              0.65
    set color             blue
    set Worker?           true
    set HumanWealth       0
    set ConsumeDesire     0
    set DepositBank       InitialHouseholdsAssets
    ask Banks             [ set Equity_Workers    Equity_Workers + InitialHouseholdsAssets ]
    set Hired?            false
    set Income            0
    ]

  ask Banks [
    set Equity_Total     InitialEquityBank + Equity_K-Firms + Equity_C-Firms + Equity_Rentists + Equity_Workers
    ]
  ]
end 

;initial tests to include the logistic equation to model de interests rates pratice for the bank management

to-report betha [ X Y ]

  let meanX     mean   X
  let meanY     mean   Y
  let firstpart (map [((?1 - meanX) * (?2 - meanY))] X Y)
  let secndpart (map [((?  - meanX) * (?  - meanX))] X)
  ifelse  sum secndpart != 0 [ report        (sum firstpart) / (sum secndpart) ] [ report 0 ]
end 

to-report alpha [ X Y B ]

  report Y - B * X
end 












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elder silva almost 2 years ago new info Download this version
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