{
  "source": {
    "author": "Gary C. Jacobson",
    "year": 1978,
    "title": "The Effects of Campaign Spending in Congressional Elections",
    "journal": "American Political Science Review",
    "volume": 72,
    "issue": 2,
    "pages": "469–491",
    "doi": "10.2307/1954105",
    "verification": "Transkripsi dari PDF pengguna; halaman tabel asli diperiksa secara visual."
  },
  "recall_table9": {
    "printed_page": 480,
    "metric": "Persentase pemilih dalam survei yang mengingat nama kandidat",
    "notes": "Survei 1974 berbobot. N adalah jumlah kasus yang menjadi dasar persentase, sebagaimana tercetak; kolom open seat disimpan untuk pemeriksaan, tidak ditampilkan di grafik utama.",
    "rows": [
      {"contest":"House", "year":1972, "incumbent":50, "challenger":27, "n":498, "open_seat":41, "open_seat_n":220},
      {"contest":"House", "year":1974, "incumbent":57, "challenger":31, "n":856, "open_seat":35, "open_seat_n":374},
      {"contest":"Senat", "year":1974, "incumbent":73, "challenger":44, "n":595, "open_seat":54, "open_seat_n":428}
    ]
  },
  "vote_coefficients": {
    "outcome": "Pangsa suara dua partai penantang, dalam persen",
    "spending_unit": "Ribuan dolar AS, nominal pada tahun pemilu",
    "display_unit": "Poin persentase suara penantang per tambahan US$10.000 belanja kandidat yang disebut",
    "conversion": "Koefisien asli dikalikan 10; tanda asli dipertahankan.",
    "notes": "Model lengkap. Ambang signifikansi 5% menurut Tabel 1 artikel: |t| >= 1,98. Tidak tersedia data mentah atau interval kepercayaan yang dihitung ulang.",
    "rows": [
      {"year":1972,"estimator":"OLS","table":1,"printed_page":472,"n":296,"challenger_b":0.112,"challenger_t":9.42,"incumbent_b":-0.002,"incumbent_t":-0.14},
      {"year":1974,"estimator":"OLS","table":1,"printed_page":472,"n":319,"challenger_b":0.121,"challenger_t":10.45,"incumbent_b":-0.028,"incumbent_t":-2.34},
      {"year":1972,"estimator":"2SLS","table":4,"printed_page":476,"n":296,"challenger_b":0.163,"challenger_t":2.59,"incumbent_b":-0.051,"incumbent_t":-0.89},
      {"year":1974,"estimator":"2SLS","table":4,"printed_page":476,"n":319,"challenger_b":0.179,"challenger_t":1.21,"incumbent_b":-0.022,"incumbent_t":-0.14}
    ]
  },
  "recall_model_table10": {
    "printed_page":483,
    "equation":"p = 1 / (1 + exp(-(a + b * E)))",
    "outcome":"Model probability of recalling a candidate's name",
    "spending_unit":"Thousands of nominal US dollars; fitted first-stage spending for 2SLS nonincumbents, actual spending for OLS incumbents",
    "notes":"Historical model reconstruction, not new observations or a prediction for Indonesia. Nonincumbents include challengers and open-seat candidates. Incumbent and nonincumbent curves use different estimators, as in the article. Zero-spending intercepts are model values. No uncertainty band is available from the supplied table.",
    "rows":[
      {"year":1972,"max_spending_thousands":160,"nonincumbent":{"estimator":"2SLS","a":-1.25,"b":0.0087},"incumbent":{"estimator":"OLS","a":-0.036,"b":0.0005}},
      {"year":1974,"max_spending_thousands":200,"nonincumbent":{"estimator":"2SLS","a":-1.20,"b":0.0104},"incumbent":{"estimator":"OLS","a":-0.129,"b":0.0078}}
    ]
  }
}