Esempio n. 1
0
 /*Execute each of the agent's yearly actions in turn*/
 public void step(SimState state) {
   if (Model.instance().generateLifeProb() == 101) {
     mode = LifeStage.DYING;
   }
   // earn
   if (mode == LifeStage.EARNING) {
     this.earnIncome();
     mode = LifeStage.TRADING;
     Model.instance().schedule.scheduleOnceIn(.1, this);
     // trade
   } else if (mode == LifeStage.TRADING) {
     // this.tradeWithRandomAgents();
     this.checkThreeProducers();
     mode = LifeStage.CONSUMING;
     Model.instance().schedule.scheduleOnceIn(.1, this);
     // consume
   } else if (mode == LifeStage.CONSUMING) {
     this.consume();
     // System.out.printf("food price: %f, id: %d, Make: %d\n",expPrice[1],myId,producedCommodity);
     // mode = LifeStage.BIRTHING;
     mode = LifeStage.EARNING;
     Model.instance().schedule.scheduleOnceIn(.8, this);
     age++;
     // child
   } /*else if(mode == LifeStage.BIRTHING){
        this.considerHavingAChild();
        mode = LifeStage.DYING;
        Model.instance().schedule.scheduleOnceIn(.1,this);
     //death
     }*/ else if (mode == LifeStage.DYING) {
     this.considerDeath();
     // mode = LifeStage.EARNING;
   }
 }
Esempio n. 2
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 /*Probabilistically determine whether an agent will have a child
 and add a new agent to the schedule if so*/
 public void considerHavingAChild() {
   int prob = Model.instance().generateChild();
   if (age >= 20 && age < 35) {
     if (prob > 90) {
       Human newchild = new Human(this);
       Model.instance().schedule.scheduleOnceIn(.6, newchild);
       Model.instance().incrementPopulation();
     }
   }
 }
Esempio n. 3
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 private void trade(int x, Human other) {
   // Determine how low and high the agents are in the given good (not Giffen good)
   double deficit = minThreshold[x] - commoditiesHeld[x];
   double surplus = other.commoditiesHeld[x] - other.minThreshold[x];
   // Sell only if the buyer is willing to pay more than the seller wants???
   // if(expPrice[x]>other.expPrice[x]){//SELLER HAS MONOPOLISTIC CONTROL!!! MAYDAY!
   // Haggle to the price being the average of the two expecteds
   double price = (expPrice[x] + other.expPrice[x]) / 2;
   double diff = price - expPrice[x];
   // Bring both agents' expectations a tenth of the way to the average
   diff /= 10;
   expPrice[x] += diff;
   diff = price - other.expPrice[x];
   diff /= 10;
   other.expPrice[x] += diff;
   // Decide the amount to buy so as not to bring buyer above or seller below need level
   if (deficit > surplus) {
     money -= surplus * price;
     other.money += surplus * price;
     other.commoditiesHeld[x] -= surplus;
     commoditiesHeld[x] += surplus;
   } else {
     money -= deficit * price;
     other.money += deficit * price;
     other.commoditiesHeld[x] -= deficit;
     commoditiesHeld[x] += deficit;
   }
   // Increment model-wide trades
   Model.instance().incrementTrades();
   /*}else{
   other.expPrice[x] = other.expPrice[x]-((other.expPrice[x]-expPrice[x])/10);
   expPrice[x] = expPrice[x]+((other.expPrice[x]-expPrice[x])/10);
   }*/
 }
Esempio n. 4
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  // Constructors & destructors
  // --------------------------------------------------------------------------
  // This constructor is called for initial agents
  public Human() {
    myId = nextAgentNum++;
    mode = LifeStage.EARNING;
    /*if (myId == 0 || myId == 1) {
    producedCommodity = myId;
    } else {*/
    producedCommodity = Model.instance().generateMake(this);
    // }
    residentCommunity = Model.instance().generateCommunity(this);
    age = 0; // Model.instance().generateAge();
    money = Model.MONEY;
    children = new ArrayList<Human>();
    minThreshold = new double[Commodity.NUM_COMM]; // Between 0 and 5
    commoditiesHeld = new double[Commodity.NUM_COMM];
    expPrice = new double[Commodity.NUM_COMM];
    chokeQuant = new double[Commodity.NUM_COMM];
    demandSlope = new double[Commodity.NUM_COMM];
    budget = new double[Commodity.NUM_COMM];

    // New trade variables
    alpha = new double[Commodity.NUM_COMM];
    beta = new double[Commodity.NUM_COMM];
    goodUtils = new double[Commodity.NUM_COMM];
    utilsDollar = new double[Commodity.NUM_COMM];
    budgetExp = new double[Commodity.NUM_COMM];

    timesTraded = 0;
    for (int i = 0; i < Commodity.NUM_COMM; i++) {
      minThreshold[i] =
          Commodity.getCommNum(i)
              .getAmtCons(); // Model.instance().generateNeedCommodityThreshold();
      /* while( minThreshold[i]< Commodity.getCommNum(i).getAmtCons()) {
      minThreshold[i]=Model.instance().generateNeedCommodityThreshold();
      }*/
      Commodity.getCommNum(i).incNeed(minThreshold[i]);
      expPrice[i] = Model.instance().generateExpPrice();
      chokeQuant[i] = Model.instance().generateChokeQuant();
      demandSlope[i] = Model.instance().generateDemandSlope();
      alpha[i] = Model.instance().generateAlpha();
      beta[i] = Model.instance().generateBeta();
      commoditiesHeld[i] = 0;
    }
    allNeeds = 0;
    for (int i = 0; i < Commodity.NUM_COMM; i++) {
      allNeeds += minThreshold[i];
    }
    amountProduced = Model.instance().generateAmountProduced();
    totalAmountProduced += amountProduced;
    Commodity.getCommNum(producedCommodity).incMakerNum(amountProduced);
    Model.instance().addToActors(this);
    // Model.instance().addToProducers(producedCommodity, this);
  }
Esempio n. 5
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 // This constructor is called for new children
 public Human(Human progenitor) {
   mode = LifeStage.EARNING;
   parent = progenitor;
   myId = nextAgentNum++;
   producedCommodity = Model.instance().generateMake(this);
   residentCommunity = parent.residentCommunity;
   age = 0;
   money = 100;
   children = new ArrayList<Human>();
   minThreshold = new double[Commodity.NUM_COMM]; // Between 0 and 5
   commoditiesHeld = new double[Commodity.NUM_COMM];
   timesTraded = 0;
   for (int i = 0; i < Commodity.NUM_COMM; i++) {
     minThreshold[i] = Model.instance().generateNeedCommodityThreshold();
     while (minThreshold[i] < Commodity.getCommNum(i).getAmtCons()) {
       minThreshold[i] = Model.instance().generateNeedCommodityThreshold();
     }
     Commodity.getCommNum(i).incNeed(minThreshold[i]);
     expPrice[i] = Model.instance().generateExpPrice();
     commoditiesHeld[i] = 0;
   }
   allNeeds = 0;
   for (int i = 0; i < Commodity.NUM_COMM; i++) {
     allNeeds += minThreshold[i];
   }
   amountProduced = Model.instance().generateAmountProduced();
   Commodity.getCommNum(producedCommodity).incMakerNum(amountProduced);
   parent.children.add(this);
   Model.instance().addToActors(this);
   Model.instance().addToCommunity(residentCommunity, this);
 }
Esempio n. 6
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 /*Give an even portion of the agent's goods to all the children*/
 private void omniBequeath(Human man) {
   if (man.children.size() == 0) {
     // std::cout<<"Childless ";
     /*TODO remove holdings from model*/
   } else {
     if (man.children.size() > 1) {
       Model.instance().addToWealthRedistributed(man.getWealth());
       Model.instance().incrementOmniEvent();
     }
     for (int i = 0; i < man.children.size(); i++) {
       for (int j = 0; j < Commodity.NUM_COMM; j++) {
         double progeny = man.children.size();
         man.children.get(i).commoditiesHeld[j] += man.commoditiesHeld[j] / progeny;
         man.children.get(i).money += man.money / progeny;
       }
     }
   }
 }
Esempio n. 7
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  public void earnIncome() {
    // If they didn't empty their inventory, lower price
    // Model.instance().showNumOfProducers();
    String message;
    if (Model.instance().findProducer(producedCommodity, this) && Model.instance().getTick() > 1) {
      // cph Decrease price by changeProp to represent unsold inventory
      expPrice[producedCommodity] /= changeProp;
      if (producedCommodity == GOOD) {
        message =
            "Due to surplus inventory, price of "
                + Integer.toString(GOOD)
                + " falls to "
                + Double.toString(expPrice[producedCommodity]);
        debug(message, PRICE);
      }
    }
    /*if((producedCommodity != 5) && (Model.instance().getNumProducers(producedCommodity)>15)){
    producedCommodity = 5;
    }*/
    if (Model.instance().generateSwitch() < Model.SWITCH_PROZ && Model.instance().getTick() > 1) {
      // Remove from current production arrayList
      int com = 0;
      double max = 0;
      for (int i = 0; i < Commodity.NUM_COMM; i++) {
        if (expPrice[i] > max) {
          com = i;
          max = expPrice[i];
        }
      }
      Model.instance().removeFromProducers(producedCommodity, this);
      producedCommodity = com;
    }
    if (Model.instance().findProducer(producedCommodity, this)) {

    } else {
      // Add to new production arrayList
      Model.instance().addToProducers(producedCommodity, this);
    }

    if (producedCommodity == 0) {
      // System.out.println("I produce A!");
    } else {
      // System.out.println("I produce something else!");
    }
    // if(age > 3 && producedCommodity == 1){

    // }else{
    commoditiesHeld[producedCommodity] += amountProduced; // Units?
    Commodity.getCommNum(producedCommodity).produce(amountProduced);
    totalMoney += money;
    makeBudget();
    // }
  }
Esempio n. 8
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 // Initiate random trades with other agents
 public void tradeWithRandomAgents() {
   /*
     Ok, new plan. Trading with communities in play.
     Generate a number every time, if you are below, trade in community.
     If you're above, you may trade with the world at large.
   */
   for (int i = 0; i < Model.NUM_TRADERS; i++) {
     int roll = (Model.instance().generateOutsideTrade());
     // if(roll>Model.INTROVERT_DIAL) {
     buyFrom(Model.instance().getRandomGlobalMember());
     /*} else {
     buyFrom(Model.instance().getRandomCommunityMember(residentCommunity));
     }*/
     /*int k=0;
     for(int j=0; j<Commodity.NUM_COMM; j++){
     if(checkStatus(j)==CommodityStatus.DEFICIENT){
     k=1;
     }
     }
     if(k==0){
     break;
     }*/
   }
 }
Esempio n. 9
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  private void selectProducer(Human seller, int good) {
    double price = seller.expPrice[good];
    double quantity = budgetExp[good] / price;
    double otherQuantity = seller.budgetExp[good] / price; // seller.chokeQuant[good];
    String message;
    /*double quantity = chokeQuant[good];
      double otherQuantity = seller.chokeQuant[good];
    //How much is the buyer willing to buy at the price
    for(int i=0; i<Commodity.NUM_COMM; i++){
    if(i!=good){
    quantity -= demandSlope[i]*expPrice[i];
    }else{
    quantity -= demandSlope[good]*price;
    }
    }*/
    /*for(int k=0; k<Commodity.NUM_COMM; k++){
    otherQuantity -= seller.demandSlope[k]*seller.expPrice[k];
    }*/
    double firstQuantity = quantity;
    if (otherQuantity > (seller.commoditiesHeld[good] - quantity)) {
      quantity = (seller.commoditiesHeld[good] - quantity);
      // Remove seller from producer arrayList
      // cph Seller sold inventory, raises price to reflect scarcity of his good
      seller.expPrice[good] *= changeProp;
      if (good == GOOD) {
        message =
            "Producer of good "
                + Integer.toString(GOOD)
                + " ran out, price rises to "
                + Double.toString(seller.expPrice[good])
                + " wanted to hold quantity "
                + Double.toString(quantity)
                + " not "
                + Double.toString(firstQuantity);
        debug(message, PRICE);
      }
      Model.instance().removeFromProducers(seller.producedCommodity, seller);
      debug("removing", false);
    }
    double diff = price - expPrice[good];
    diff /= 10;
    double tempUnDiff = expPrice[good];
    // expPrice[good]+=diff;
    if (good == 2) {
      message =
          "2 price changed from "
              + Double.toString(tempUnDiff)
              + " to "
              + Double.toString(expPrice[good]);
      debug(message, TRADE);
      message = "2 price changed by " + Double.toString(diff);
      debug(message, TRADE);
      // System.out.printf("2 price changed from %f to %f\n", tempUnDiff, expPrice[good]);
      // System.out.printf("2 price changed by %f\n", diff);
    }
    // If they bought, raise seller's price
    if (quantity > 0) { // && money >= price*quantity){
      // System.out.printf("We bought %f at %f!\n",quantity, price);
      seller.commoditiesHeld[good] -= quantity;
      commoditiesHeld[good] += quantity;

      budgetExp[good] -= quantity * price;
      seller.money += quantity * price;
      money -= quantity * price;

      Commodity.getCommNum(good).reportSale(quantity);
      totalSpent += quantity * price;
      // seller.expPrice[good]*=1.01;
    } else {
      // System.out.printf("We didn't buy at %f!\n", price);
    }
  }
Esempio n. 10
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  /*Pobabilistically determine whether an agent will die and inter
  them and distribute their wealth*/
  public void considerDeath() {
    int BD = 0;
    int prob = Model.instance().generateLifeProb();
    // Death at end of model
    if (prob == 101) {

      // Death if black death is active
    } else if (Model.instance().getTick() > 80 && Model.instance().getTick() < 82 && BD != 0) {
      if (prob < 10) {
        Model.instance().inter(this);
        Model.instance().decrementPopulation();
        if (BEQ == 0) {
          omniBequeath(this);
        }
        if (BEQ == 1) {
          primoBequeath(this);
        }
      } else {
        Model.instance().schedule.scheduleOnceIn(.7, this);
      }
      // Normal death
    } else if (age >= 25 && age < 100) {
      int getAbove = 6;
      /*if(Model::instance()->getTick()>80 && Model::instance()->getTick()<85)
      {
      getAbove=90;
      }*/
      if (prob < getAbove) {
        Model.instance().inter(this);
        Model.instance().decrementPopulation();
        if (BEQ == 0) {
          omniBequeath(this);
        }
        if (BEQ == 1) {
          primoBequeath(this);
        }
      } else {
        Model.instance().schedule.scheduleOnceIn(.7, this);
      }
      // No one lives over 100 years
    } else if (age >= 100) {
      Model.instance().inter(this);
      Model.instance().decrementPopulation();
      if (BEQ == 0) {
        omniBequeath(this);
      }
      if (BEQ == 1) {
        primoBequeath(this);
      }
      // Person survived
    } else {
      Model.instance().schedule.scheduleOnceIn(.7, this);
    }
    age++;
  }
Esempio n. 11
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  // Talk to three producers for each good and select one to buy from
  // Lower the prices of the other two
  public void checkThreeProducers() { // TODO lots of things REALLY
    // makeBudget();
    String message;
    // Model.instance().showNumOfProducers();
    tradingPartners = new ArrayList<Human>();
    ArrayList<Integer> random = new ArrayList<Integer>();
    for (int l = 0; l < Commodity.NUM_COMM; l++) {
      random.add(l);
    }
    // Collections.shuffle(random);
    for (int p = 0; p < Commodity.NUM_COMM; p++) {
      int i = random.get(p);
      if (i == GOOD) {
        buyers++;
        // System.out.printf("%d agents have tried to buy the good\n", buyers);
      }
      int numTrades = 0;
      // System.out.printf("Human trade budget %f num prod %d numTrades %d\n", budgetExp[i],
      // Model.instance().getNumProducers(i),numTrades);
      while (Model.instance().getNumProducers(i) > 0 && budgetExp[i] > 0.01) { // && numTrades < 3){
        // System.out.printf("Human trade budget is %f and num prod is %d\n", budgetExp[i],
        // Model.instance().getNumProducers(i));
        numTrades++;
        tradingPartners.clear();
        // System.out.println("Maybe stuck in a loop\n");
        // System.out.printf("Budget for good %d is %f\n", i, budgetExp[i]);
        // int i = p;
        int numt = 3;
        int psize = Model.instance().getNumProducers(i);
        if (i == GOOD) {
          // System.out.printf("Num producers is %d\n",psize);
        }
        if (psize < 3) {
          numt = psize;
        }
        int cheapestProducer = 0;
        double lowestPrice = 0;
        double avgPrice = 0;
        double sumPrice = 0;
        // System.out.printf("psize is %d\n", psize);
        for (int k = 0; k < numt; k++) {
          Human toAdd = Model.instance().getProducerOfGood(i);
          if (tradingPartners.contains(toAdd)) {
            // k--;
          } else {
            tradingPartners.add(toAdd);
          }
        }
        // System.out.printf("tp size is %d\n",tradingPartners.size());
        lowestPrice = tradingPartners.get(0).expPrice[i];
        for (int k = 0; k < tradingPartners.size(); k++) {
          sumPrice += tradingPartners.get(k).expPrice[i];
          if (tradingPartners.get(k).expPrice[i] < lowestPrice) {
            cheapestProducer = k;
            lowestPrice = tradingPartners.get(k).expPrice[i];
          }
        }

        avgPrice = sumPrice / tradingPartners.size();
        double diff = avgPrice - expPrice[i];
        diff /= buyerChange;
        // cph change buyer's price to reflect prices they believe sellers are offering
        expPrice[i] += diff;

        for (int k = 0; k < tradingPartners.size(); k++) {
          if (k != cheapestProducer) {
            // tradingPartners.get(k).expPrice[i]*=.99;
            if (i == 2) {
              message = "no deal, price falls to " + Double.toString(expPrice[i]);
              debug(message, TRADE);
            }
          } else {
            selectProducer(tradingPartners.get(k), i);
          }
        }
      }
      // cph increase buyer's price by changeProp in the event of no producers to reflect scarcity
      // of the good
      // expPrice[i]*=changeProp;
      if (i == GOOD) {
        message =
            "no producers, price of good "
                + Integer.toString(GOOD)
                + " rises to "
                + Double.toString(expPrice[i]);
        // debug(message, PRICE);
      }
    }
  }