#1 · Example: v2 quick demonstration (olive ground cover)

{
  "name": "Example: v2 quick demonstration (olive ground cover)",
  "description": "Small expenditure-matched comparison on SYNTHETIC olive growers.",
  "masterSeed": 20270205,
  "periods": 12,
  "repetitions": 20,
  "populationSizes": [
    100
  ],
  "budgetLevels": [
    {
      "label": "Uncapped",
      "budgetPerFarmer": 0,
      "uncapped": true
    }
  ],
  "sensitivityLevels": [
    {
      "label": "Medium",
      "betaR": 1.5
    }
  ],
  "mechanisms": [
    "S0",
    "S1",
    "S2",
    "S3",
    "S3R"
  ],
  "budgetAllocation": "PerPeriodWithCarryOver",
  "behavior": {
    "betaB": 2,
    "betaC": 1.5,
    "experienceEffect": 0.1,
    "monetaryReference": 100
  },
  "population": {
    "initialAdoptionRate": 0.1,
    "baselinePropensity": {
      "mean": -2,
      "sd": 1,
      "min": -6,
      "max": 2
    },
    "perceivedBenefit": {
      "mean": 0.5,
      "sd": 0.15,
      "min": 0,
      "max": 1
    },
    "adoptionCost": {
      "mean": 80,
      "sd": 25,
      "min": 10,
      "max": 200
    },
    "incentiveSensitivity": {
      "mean": 1,
      "sd": 0.25,
      "min": 0.1,
      "max": 2
    },
    "baselinePerformance": {
      "mean": 0.35,
      "sd": 0.1,
      "min": 0.05,
      "max": 0.8
    },
    "performanceGainPotential": {
      "mean": 0.3,
      "sd": 0.1,
      "min": 0.05,
      "max": 0.6
    }
  },
  "performance": {
    "improvementRate": 0.35,
    "decayRate": 0.25,
    "verificationNoiseSd": 0.02
  },
  "mechanismSettings": {
    "fixedReward": 100,
    "fixedRewardMinimumPerformance": 0,
    "performanceRate": 333.3333333333333,
    "performanceRewardCap": 200,
    "tiers": [
      {
        "threshold": 0.45,
        "reward": 50
      },
      {
        "threshold": 0.55,
        "reward": 100
      },
      {
        "threshold": 0.65,
        "reward": 150
      }
    ]
  },
  "modelVersion": "2.0.0",
  "v2": {
    "protocol": "Frontier",
    "practice": {
      "crop": "Olive orchards (Olea europaea), Mediterranean rain-fed conditions",
      "practice": "Maintained inter-row ground cover (sown cover crop or managed spontaneous vegetation) during the erosion-risk season, instead of bare soil kept by tillage or herbicide",
      "periodUnit": "One agricultural season (one year)",
      "decision": "Whether to maintain inter-row ground cover in the coming season (binary, taken once per season)",
      "performanceIndicator": "Verified inter-row ground-cover fraction during the erosion-risk season (0\u20131); a single observable indicator, not an aggregate sustainability score",
      "reversibility": "Reversible-seasonal: participation can start or stop every season; cover quality builds up over consecutive seasons and degrades towards the conventional level after stopping",
      "verification": "Assumed remote sensing or field inspection; participation verified without error, ground-cover fraction with Gaussian measurement error"
    },
    "persistenceStrength": 2,
    "expectationHorizon": 3,
    "expectationDiscount": 0.9,
    "initialPayoutExpectation": 1,
    "initialParticipantPerformanceSteps": 1,
    "heterogeneityScale": 1,
    "costBaselineCorrelation": 0,
    "sustainedSpellLength": 4,
    "bootstrapResamples": 1000,
    "relativeTiers": [
      {
        "threshold": 0.1,
        "reward": 50
      },
      {
        "threshold": 0.2,
        "reward": 100
      },
      {
        "threshold": 0.3,
        "reward": 150
      }
    ],
    "rewardScales": [
      0.25,
      0.5,
      0.75,
      1,
      1.25,
      1.5,
      2,
      2.5,
      3
    ],
    "spendingTargets": [
      100,
      200,
      300,
      400
    ],
    "primarySpendingTarget": 200,
    "sensitivity": {
      "points": 64,
      "seed": 20270101,
      "rewardScales": [
        0.5,
        1,
        1.5,
        2,
        3
      ],
      "factors": [
        {
          "factor": "BetaR",
          "min": 0.5,
          "max": 3,
          "isInteger": false
        },
        {
          "factor": "CostMean",
          "min": 40,
          "max": 120,
          "isInteger": false
        },
        {
          "factor": "BenefitMean",
          "min": 0.3,
          "max": 0.7,
          "isInteger": false
        },
        {
          "factor": "PropensityMean",
          "min": -3,
          "max": -1,
          "isInteger": false
        },
        {
          "factor": "Persistence",
          "min": 0,
          "max": 4,
          "isInteger": false
        },
        {
          "factor": "ImprovementRate",
          "min": 0.15,
          "max": 0.55,
          "isInteger": false
        },
        {
          "factor": "DecayRate",
          "min": 0.1,
          "max": 0.5,
          "isInteger": false
        },
        {
          "factor": "InitialPayoutExpectation",
          "min": 0.5,
          "max": 1,
          "isInteger": false
        },
        {
          "factor": "ExpectationHorizon",
          "min": 1,
          "max": 5,
          "isInteger": true
        },
        {
          "factor": "HeterogeneityScale",
          "min": 0.5,
          "max": 1.5,
          "isInteger": false
        },
        {
          "factor": "CostBaselineCorrelation",
          "min": -0.5,
          "max": 0.5,
          "isInteger": false
        }
      ]
    }
  }
}