{
  "time_units": "years",
  "generation_time": 25,
  "doi": [
    "https://doi.org/10.1371/journal.pgen.1000695"
  ],
  "description": "The Gutenkunst et al. (2009) OOA model.",
  "metadata": {},
  "demes": [
    {
      "name": "ancestral",
      "description": "Equilibrium/root population",
      "start_time": "Infinity",
      "epochs": [
        {
          "end_time": 220000.0,
          "start_size": 7300,
          "end_size": 7300,
          "size_function": "constant",
          "selfing_rate": 0,
          "cloning_rate": 0
        }
      ],
      "proportions": [],
      "ancestors": []
    },
    {
      "name": "AMH",
      "description": "Anatomically modern humans",
      "start_time": 220000.0,
      "epochs": [
        {
          "end_time": 140000.0,
          "start_size": 12300,
          "end_size": 12300,
          "size_function": "constant",
          "selfing_rate": 0,
          "cloning_rate": 0
        }
      ],
      "proportions": [
        1
      ],
      "ancestors": [
        "ancestral"
      ]
    },
    {
      "name": "OOA",
      "description": "Bottleneck out-of-Africa population",
      "start_time": 140000.0,
      "epochs": [
        {
          "end_time": 21200.0,
          "start_size": 2100,
          "end_size": 2100,
          "size_function": "constant",
          "selfing_rate": 0,
          "cloning_rate": 0
        }
      ],
      "proportions": [
        1
      ],
      "ancestors": [
        "AMH"
      ]
    },
    {
      "name": "YRI",
      "description": "Yoruba in Ibadan, Nigeria",
      "start_time": 140000.0,
      "epochs": [
        {
          "end_time": 0,
          "start_size": 12300,
          "end_size": 12300,
          "size_function": "constant",
          "selfing_rate": 0,
          "cloning_rate": 0
        }
      ],
      "proportions": [
        1
      ],
      "ancestors": [
        "AMH"
      ]
    },
    {
      "name": "CEU",
      "description": "Utah Residents (CEPH) with Northern and Western European Ancestry",
      "start_time": 21200.0,
      "epochs": [
        {
          "end_time": 0,
          "start_size": 1000,
          "end_size": 29725,
          "size_function": "exponential",
          "selfing_rate": 0,
          "cloning_rate": 0
        }
      ],
      "proportions": [
        1
      ],
      "ancestors": [
        "OOA"
      ]
    },
    {
      "name": "CHB",
      "description": "Han Chinese in Beijing, China",
      "start_time": 21200.0,
      "epochs": [
        {
          "end_time": 0,
          "start_size": 510,
          "end_size": 54090,
          "size_function": "exponential",
          "selfing_rate": 0,
          "cloning_rate": 0
        }
      ],
      "proportions": [
        1
      ],
      "ancestors": [
        "OOA"
      ]
    }
  ],
  "migrations": [
    {
      "rate": 0.00025,
      "start_time": 140000.0,
      "end_time": 21200.0,
      "source": "YRI",
      "dest": "OOA"
    },
    {
      "rate": 0.00025,
      "start_time": 140000.0,
      "end_time": 21200.0,
      "source": "OOA",
      "dest": "YRI"
    },
    {
      "rate": 3e-05,
      "start_time": 21200.0,
      "end_time": 0,
      "source": "YRI",
      "dest": "CEU"
    },
    {
      "rate": 3e-05,
      "start_time": 21200.0,
      "end_time": 0,
      "source": "CEU",
      "dest": "YRI"
    },
    {
      "rate": 1.9e-05,
      "start_time": 21200.0,
      "end_time": 0,
      "source": "YRI",
      "dest": "CHB"
    },
    {
      "rate": 1.9e-05,
      "start_time": 21200.0,
      "end_time": 0,
      "source": "CHB",
      "dest": "YRI"
    },
    {
      "rate": 9.6e-05,
      "start_time": 21200.0,
      "end_time": 0,
      "source": "CEU",
      "dest": "CHB"
    },
    {
      "rate": 9.6e-05,
      "start_time": 21200.0,
      "end_time": 0,
      "source": "CHB",
      "dest": "CEU"
    }
  ],
  "pulses": []
}