{
  "id": "grunfeld-firm-investment-data",
  "name": "Grunfeld Investment Data (1935–1954)",
  "title": "Grunfeld Investment Data (1935–1954)",
  "description": "Investment, market value, and capital stock data for 10 large US manufacturing firms from 1935 to 1954, a classic econometrics panel dataset.",
  "category": "finance",
  "source": "https://github.com/vincentarelbundock/Rdatasets",
  "source_url": "https://github.com/vincentarelbundock/Rdatasets",
  "updated": "2026-04",
  "record_count": 220,
  "columns": [
    {
      "key": "invest",
      "label": "Invest",
      "type": "number"
    },
    {
      "key": "value",
      "label": "Value",
      "type": "number"
    },
    {
      "key": "capital",
      "label": "Capital",
      "type": "number"
    },
    {
      "key": "firm",
      "label": "Firm",
      "type": "string"
    },
    {
      "key": "year",
      "label": "Year",
      "type": "number"
    }
  ],
  "rows": [
    {
      "invest": "317.6",
      "value": "3078.5",
      "capital": "2.8",
      "firm": "General Motors",
      "year": "1935"
    },
    {
      "invest": "391.8",
      "value": "4661.7",
      "capital": "52.6",
      "firm": "General Motors",
      "year": "1936"
    },
    {
      "invest": "410.6",
      "value": "5387.1",
      "capital": "156.9",
      "firm": "General Motors",
      "year": "1937"
    },
    {
      "invest": "257.7",
      "value": "2792.2",
      "capital": "209.2",
      "firm": "General Motors",
      "year": "1938"
    },
    {
      "invest": "330.8",
      "value": "4313.2",
      "capital": "203.4",
      "firm": "General Motors",
      "year": "1939"
    },
    {
      "invest": "461.2",
      "value": "4643.9",
      "capital": "207.2",
      "firm": "General Motors",
      "year": "1940"
    },
    {
      "invest": "512",
      "value": "4551.2",
      "capital": "255.2",
      "firm": "General Motors",
      "year": "1941"
    },
    {
      "invest": "448",
      "value": "3244.1",
      "capital": "303.7",
      "firm": "General Motors",
      "year": "1942"
    },
    {
      "invest": "499.6",
      "value": "4053.7",
      "capital": "264.1",
      "firm": "General Motors",
      "year": "1943"
    },
    {
      "invest": "547.5",
      "value": "4379.3",
      "capital": "201.6",
      "firm": "General Motors",
      "year": "1944"
    },
    {
      "invest": "561.2",
      "value": "4840.9",
      "capital": "265",
      "firm": "General Motors",
      "year": "1945"
    },
    {
      "invest": "688.1",
      "value": "4900.9",
      "capital": "402.2",
      "firm": "General Motors",
      "year": "1946"
    },
    {
      "invest": "568.9",
      "value": "3526.5",
      "capital": "761.5",
      "firm": "General Motors",
      "year": "1947"
    },
    {
      "invest": "529.2",
      "value": "3254.7",
      "capital": "922.4",
      "firm": "General Motors",
      "year": "1948"
    },
    {
      "invest": "555.1",
      "value": "3700.2",
      "capital": "1020.1",
      "firm": "General Motors",
      "year": "1949"
    },
    {
      "invest": "642.9",
      "value": "3755.6",
      "capital": "1099",
      "firm": "General Motors",
      "year": "1950"
    },
    {
      "invest": "755.9",
      "value": "4833",
      "capital": "1207.7",
      "firm": "General Motors",
      "year": "1951"
    },
    {
      "invest": "891.2",
      "value": "4924.9",
      "capital": "1430.5",
      "firm": "General Motors",
      "year": "1952"
    },
    {
      "invest": "1304.4",
      "value": "6241.7",
      "capital": "1777.3",
      "firm": "General Motors",
      "year": "1953"
    },
    {
      "invest": "1486.7",
      "value": "5593.6",
      "capital": "2226.3",
      "firm": "General Motors",
      "year": "1954"
    },
    {
      "invest": "209.9",
      "value": "1362.4",
      "capital": "53.8",
      "firm": "US Steel",
      "year": "1935"
    },
    {
      "invest": "355.3",
      "value": "1807.1",
      "capital": "50.5",
      "firm": "US Steel",
      "year": "1936"
    },
    {
      "invest": "469.9",
      "value": "2676.3",
      "capital": "118.1",
      "firm": "US Steel",
      "year": "1937"
    },
    {
      "invest": "262.3",
      "value": "1801.9",
      "capital": "260.2",
      "firm": "US Steel",
      "year": "1938"
    },
    {
      "invest": "230.4",
      "value": "1957.3",
      "capital": "312.7",
      "firm": "US Steel",
      "year": "1939"
    },
    {
      "invest": "361.6",
      "value": "2202.9",
      "capital": "254.2",
      "firm": "US Steel",
      "year": "1940"
    },
    {
      "invest": "472.8",
      "value": "2380.5",
      "capital": "261.4",
      "firm": "US Steel",
      "year": "1941"
    },
    {
      "invest": "445.6",
      "value": "2168.6",
      "capital": "298.7",
      "firm": "US Steel",
      "year": "1942"
    },
    {
      "invest": "361.6",
      "value": "1985.1",
      "capital": "301.8",
      "firm": "US Steel",
      "year": "1943"
    },
    {
      "invest": "288.2",
      "value": "1813.9",
      "capital": "279.1",
      "firm": "US Steel",
      "year": "1944"
    },
    {
      "invest": "258.7",
      "value": "1850.2",
      "capital": "213.8",
      "firm": "US Steel",
      "year": "1945"
    },
    {
      "invest": "420.3",
      "value": "2067.7",
      "capital": "132.6",
      "firm": "US Steel",
      "year": "1946"
    },
    {
      "invest": "420.5",
      "value": "1796.7",
      "capital": "264.8",
      "firm": "US Steel",
      "year": "1947"
    },
    {
      "invest": "494.5",
      "value": "1625.8",
      "capital": "306.9",
      "firm": "US Steel",
      "year": "1948"
    },
    {
      "invest": "405.1",
      "value": "1667",
      "capital": "351.1",
      "firm": "US Steel",
      "year": "1949"
    },
    {
      "invest": "418.8",
      "value": "1677.4",
      "capital": "357.8",
      "firm": "US Steel",
      "year": "1950"
    },
    {
      "invest": "588.2",
      "value": "2289.5",
      "capital": "342.1",
      "firm": "US Steel",
      "year": "1951"
    },
    {
      "invest": "645.5",
      "value": "2159.4",
      "capital": "444.2",
      "firm": "US Steel",
      "year": "1952"
    },
    {
      "invest": "641",
      "value": "2031.3",
      "capital": "623.6",
      "firm": "US Steel",
      "year": "1953"
    },
    {
      "invest": "459.3",
      "value": "2115.5",
      "capital": "669.7",
      "firm": "US Steel",
      "year": "1954"
    },
    {
      "invest": "33.1",
      "value": "1170.6",
      "capital": "97.8",
      "firm": "General Electric",
      "year": "1935"
    },
    {
      "invest": "45",
      "value": "2015.8",
      "capital": "104.4",
      "firm": "General Electric",
      "year": "1936"
    },
    {
      "invest": "77.2",
      "value": "2803.3",
      "capital": "118",
      "firm": "General Electric",
      "year": "1937"
    },
    {
      "invest": "44.6",
      "value": "2039.7",
      "capital": "156.2",
      "firm": "General Electric",
      "year": "1938"
    },
    {
      "invest": "48.1",
      "value": "2256.2",
      "capital": "172.6",
      "firm": "General Electric",
      "year": "1939"
    },
    {
      "invest": "74.4",
      "value": "2132.2",
      "capital": "186.6",
      "firm": "General Electric",
      "year": "1940"
    },
    {
      "invest": "113",
      "value": "1834.1",
      "capital": "220.9",
      "firm": "General Electric",
      "year": "1941"
    },
    {
      "invest": "91.9",
      "value": "1588",
      "capital": "287.8",
      "firm": "General Electric",
      "year": "1942"
    },
    {
      "invest": "61.3",
      "value": "1749.4",
      "capital": "319.9",
      "firm": "General Electric",
      "year": "1943"
    },
    {
      "invest": "56.8",
      "value": "1687.2",
      "capital": "321.3",
      "firm": "General Electric",
      "year": "1944"
    },
    {
      "invest": "93.6",
      "value": "2007.7",
      "capital": "319.6",
      "firm": "General Electric",
      "year": "1945"
    },
    {
      "invest": "159.9",
      "value": "2208.3",
      "capital": "346",
      "firm": "General Electric",
      "year": "1946"
    },
    {
      "invest": "147.2",
      "value": "1656.7",
      "capital": "456.4",
      "firm": "General Electric",
      "year": "1947"
    },
    {
      "invest": "146.3",
      "value": "1604.4",
      "capital": "543.4",
      "firm": "General Electric",
      "year": "1948"
    },
    {
      "invest": "98.3",
      "value": "1431.8",
      "capital": "618.3",
      "firm": "General Electric",
      "year": "1949"
    },
    {
      "invest": "93.5",
      "value": "1610.5",
      "capital": "647.4",
      "firm": "General Electric",
      "year": "1950"
    },
    {
      "invest": "135.2",
      "value": "1819.4",
      "capital": "671.3",
      "firm": "General Electric",
      "year": "1951"
    },
    {
      "invest": "157.3",
      "value": "2079.7",
      "capital": "726.1",
      "firm": "General Electric",
      "year": "1952"
    },
    {
      "invest": "179.5",
      "value": "2371.6",
      "capital": "800.3",
      "firm": "General Electric",
      "year": "1953"
    },
    {
      "invest": "189.6",
      "value": "2759.9",
      "capital": "888.9",
      "firm": "General Electric",
      "year": "1954"
    },
    {
      "invest": "40.29",
      "value": "417.5",
      "capital": "10.5",
      "firm": "Chrysler",
      "year": "1935"
    },
    {
      "invest": "72.76",
      "value": "837.8",
      "capital": "10.2",
      "firm": "Chrysler",
      "year": "1936"
    },
    {
      "invest": "66.26",
      "value": "883.9",
      "capital": "34.7",
      "firm": "Chrysler",
      "year": "1937"
    },
    {
      "invest": "51.6",
      "value": "437.9",
      "capital": "51.8",
      "firm": "Chrysler",
      "year": "1938"
    },
    {
      "invest": "52.41",
      "value": "679.7",
      "capital": "64.3",
      "firm": "Chrysler",
      "year": "1939"
    },
    {
      "invest": "69.41",
      "value": "727.8",
      "capital": "67.1",
      "firm": "Chrysler",
      "year": "1940"
    },
    {
      "invest": "68.35",
      "value": "643.6",
      "capital": "75.2",
      "firm": "Chrysler",
      "year": "1941"
    },
    {
      "invest": "46.8",
      "value": "410.9",
      "capital": "71.4",
      "firm": "Chrysler",
      "year": "1942"
    },
    {
      "invest": "47.4",
      "value": "588.4",
      "capital": "67.1",
      "firm": "Chrysler",
      "year": "1943"
    },
    {
      "invest": "59.57",
      "value": "698.4",
      "capital": "60.5",
      "firm": "Chrysler",
      "year": "1944"
    },
    {
      "invest": "88.78",
      "value": "846.4",
      "capital": "54.6",
      "firm": "Chrysler",
      "year": "1945"
    },
    {
      "invest": "74.12",
      "value": "893.8",
      "capital": "84.8",
      "firm": "Chrysler",
      "year": "1946"
    },
    {
      "invest": "62.68",
      "value": "579",
      "capital": "96.8",
      "firm": "Chrysler",
      "year": "1947"
    },
    {
      "invest": "89.36",
      "value": "694.6",
      "capital": "110.2",
      "firm": "Chrysler",
      "year": "1948"
    },
    {
      "invest": "78.98",
      "value": "590.3",
      "capital": "147.4",
      "firm": "Chrysler",
      "year": "1949"
    },
    {
      "invest": "100.66",
      "value": "693.5",
      "capital": "163.2",
      "firm": "Chrysler",
      "year": "1950"
    },
    {
      "invest": "160.62",
      "value": "809",
      "capital": "203.5",
      "firm": "Chrysler",
      "year": "1951"
    },
    {
      "invest": "145",
      "value": "727",
      "capital": "290.6",
      "firm": "Chrysler",
      "year": "1952"
    },
    {
      "invest": "174.93",
      "value": "1001.5",
      "capital": "346.1",
      "firm": "Chrysler",
      "year": "1953"
    },
    {
      "invest": "172.49",
      "value": "703.2",
      "capital": "414.9",
      "firm": "Chrysler",
      "year": "1954"
    },
    {
      "invest": "39.68",
      "value": "157.7",
      "capital": "183.2",
      "firm": "Atlantic Refining",
      "year": "1935"
    },
    {
      "invest": "50.73",
      "value": "167.9",
      "capital": "204",
      "firm": "Atlantic Refining",
      "year": "1936"
    },
    {
      "invest": "74.24",
      "value": "192.9",
      "capital": "236",
      "firm": "Atlantic Refining",
      "year": "1937"
    },
    {
      "invest": "53.51",
      "value": "156.7",
      "capital": "291.7",
      "firm": "Atlantic Refining",
      "year": "1938"
    },
    {
      "invest": "42.65",
      "value": "191.4",
      "capital": "323.1",
      "firm": "Atlantic Refining",
      "year": "1939"
    },
    {
      "invest": "46.48",
      "value": "185.5",
      "capital": "344",
      "firm": "Atlantic Refining",
      "year": "1940"
    },
    {
      "invest": "61.4",
      "value": "199.6",
      "capital": "367.7",
      "firm": "Atlantic Refining",
      "year": "1941"
    },
    {
      "invest": "39.67",
      "value": "189.5",
      "capital": "407.2",
      "firm": "Atlantic Refining",
      "year": "1942"
    },
    {
      "invest": "62.24",
      "value": "151.2",
      "capital": "426.6",
      "firm": "Atlantic Refining",
      "year": "1943"
    },
    {
      "invest": "52.32",
      "value": "187.7",
      "capital": "470",
      "firm": "Atlantic Refining",
      "year": "1944"
    },
    {
      "invest": "63.21",
      "value": "214.7",
      "capital": "499.2",
      "firm": "Atlantic Refining",
      "year": "1945"
    },
    {
      "invest": "59.37",
      "value": "232.9",
      "capital": "534.6",
      "firm": "Atlantic Refining",
      "year": "1946"
    },
    {
      "invest": "58.02",
      "value": "249",
      "capital": "566.6",
      "firm": "Atlantic Refining",
      "year": "1947"
    },
    {
      "invest": "70.34",
      "value": "224.5",
      "capital": "595.3",
      "firm": "Atlantic Refining",
      "year": "1948"
    },
    {
      "invest": "67.42",
      "value": "237.3",
      "capital": "631.4",
      "firm": "Atlantic Refining",
      "year": "1949"
    },
    {
      "invest": "55.74",
      "value": "240.1",
      "capital": "662.3",
      "firm": "Atlantic Refining",
      "year": "1950"
    },
    {
      "invest": "80.3",
      "value": "327.3",
      "capital": "683.9",
      "firm": "Atlantic Refining",
      "year": "1951"
    },
    {
      "invest": "85.4",
      "value": "359.4",
      "capital": "729.3",
      "firm": "Atlantic Refining",
      "year": "1952"
    },
    {
      "invest": "91.9",
      "value": "398.4",
      "capital": "774.3",
      "firm": "Atlantic Refining",
      "year": "1953"
    },
    {
      "invest": "81.43",
      "value": "365.7",
      "capital": "804.9",
      "firm": "Atlantic Refining",
      "year": "1954"
    },
    {
      "invest": "20.36",
      "value": "197",
      "capital": "6.5",
      "firm": "IBM",
      "year": "1935"
    },
    {
      "invest": "25.98",
      "value": "210.3",
      "capital": "15.8",
      "firm": "IBM",
      "year": "1936"
    },
    {
      "invest": "25.94",
      "value": "223.1",
      "capital": "27.7",
      "firm": "IBM",
      "year": "1937"
    },
    {
      "invest": "27.53",
      "value": "216.7",
      "capital": "39.2",
      "firm": "IBM",
      "year": "1938"
    },
    {
      "invest": "24.6",
      "value": "286.4",
      "capital": "48.6",
      "firm": "IBM",
      "year": "1939"
    },
    {
      "invest": "28.54",
      "value": "298",
      "capital": "52.5",
      "firm": "IBM",
      "year": "1940"
    },
    {
      "invest": "43.41",
      "value": "276.9",
      "capital": "61.5",
      "firm": "IBM",
      "year": "1941"
    },
    {
      "invest": "42.81",
      "value": "272.6",
      "capital": "80.5",
      "firm": "IBM",
      "year": "1942"
    },
    {
      "invest": "27.84",
      "value": "287.4",
      "capital": "94.4",
      "firm": "IBM",
      "year": "1943"
    },
    {
      "invest": "32.6",
      "value": "330.3",
      "capital": "92.6",
      "firm": "IBM",
      "year": "1944"
    },
    {
      "invest": "39.03",
      "value": "324.4",
      "capital": "92.3",
      "firm": "IBM",
      "year": "1945"
    },
    {
      "invest": "50.17",
      "value": "401.9",
      "capital": "94.2",
      "firm": "IBM",
      "year": "1946"
    },
    {
      "invest": "51.85",
      "value": "407.4",
      "capital": "111.4",
      "firm": "IBM",
      "year": "1947"
    },
    {
      "invest": "64.03",
      "value": "409.2",
      "capital": "127.4",
      "firm": "IBM",
      "year": "1948"
    },
    {
      "invest": "68.16",
      "value": "482.2",
      "capital": "149.3",
      "firm": "IBM",
      "year": "1949"
    },
    {
      "invest": "77.34",
      "value": "673.8",
      "capital": "164.4",
      "firm": "IBM",
      "year": "1950"
    },
    {
      "invest": "95.3",
      "value": "676.9",
      "capital": "177.2",
      "firm": "IBM",
      "year": "1951"
    },
    {
      "invest": "99.49",
      "value": "702",
      "capital": "200",
      "firm": "IBM",
      "year": "1952"
    },
    {
      "invest": "127.52",
      "value": "793.5",
      "capital": "211.5",
      "firm": "IBM",
      "year": "1953"
    },
    {
      "invest": "135.72",
      "value": "927.3",
      "capital": "238.7",
      "firm": "IBM",
      "year": "1954"
    },
    {
      "invest": "24.43",
      "value": "138",
      "capital": "100.2",
      "firm": "Union Oil",
      "year": "1935"
    },
    {
      "invest": "23.21",
      "value": "200.1",
      "capital": "125",
      "firm": "Union Oil",
      "year": "1936"
    },
    {
      "invest": "32.78",
      "value": "210.1",
      "capital": "142.4",
      "firm": "Union Oil",
      "year": "1937"
    },
    {
      "invest": "32.54",
      "value": "161.2",
      "capital": "165.1",
      "firm": "Union Oil",
      "year": "1938"
    },
    {
      "invest": "26.65",
      "value": "161.7",
      "capital": "194.8",
      "firm": "Union Oil",
      "year": "1939"
    },
    {
      "invest": "33.71",
      "value": "145.1",
      "capital": "222.9",
      "firm": "Union Oil",
      "year": "1940"
    },
    {
      "invest": "43.5",
      "value": "110.6",
      "capital": "252.1",
      "firm": "Union Oil",
      "year": "1941"
    },
    {
      "invest": "34.46",
      "value": "98.1",
      "capital": "276.3",
      "firm": "Union Oil",
      "year": "1942"
    },
    {
      "invest": "44.28",
      "value": "108.8",
      "capital": "300.3",
      "firm": "Union Oil",
      "year": "1943"
    },
    {
      "invest": "70.8",
      "value": "118.2",
      "capital": "318.2",
      "firm": "Union Oil",
      "year": "1944"
    },
    {
      "invest": "44.12",
      "value": "126.5",
      "capital": "336.2",
      "firm": "Union Oil",
      "year": "1945"
    },
    {
      "invest": "48.98",
      "value": "156.7",
      "capital": "351.2",
      "firm": "Union Oil",
      "year": "1946"
    },
    {
      "invest": "48.51",
      "value": "119.4",
      "capital": "373.6",
      "firm": "Union Oil",
      "year": "1947"
    },
    {
      "invest": "50",
      "value": "129.1",
      "capital": "389.4",
      "firm": "Union Oil",
      "year": "1948"
    },
    {
      "invest": "50.59",
      "value": "134.8",
      "capital": "406.7",
      "firm": "Union Oil",
      "year": "1949"
    },
    {
      "invest": "42.53",
      "value": "140.8",
      "capital": "429.5",
      "firm": "Union Oil",
      "year": "1950"
    },
    {
      "invest": "64.77",
      "value": "179",
      "capital": "450.6",
      "firm": "Union Oil",
      "year": "1951"
    },
    {
      "invest": "72.68",
      "value": "178.1",
      "capital": "466.9",
      "firm": "Union Oil",
      "year": "1952"
    },
    {
      "invest": "73.86",
      "value": "186.8",
      "capital": "486.2",
      "firm": "Union Oil",
      "year": "1953"
    },
    {
      "invest": "89.51",
      "value": "192.7",
      "capital": "511.3",
      "firm": "Union Oil",
      "year": "1954"
    },
    {
      "invest": "12.93",
      "value": "191.5",
      "capital": "1.8",
      "firm": "Westinghouse",
      "year": "1935"
    },
    {
      "invest": "25.9",
      "value": "516",
      "capital": "0.8",
      "firm": "Westinghouse",
      "year": "1936"
    },
    {
      "invest": "35.05",
      "value": "729",
      "capital": "7.4",
      "firm": "Westinghouse",
      "year": "1937"
    },
    {
      "invest": "22.89",
      "value": "560.4",
      "capital": "18.1",
      "firm": "Westinghouse",
      "year": "1938"
    },
    {
      "invest": "18.84",
      "value": "519.9",
      "capital": "23.5",
      "firm": "Westinghouse",
      "year": "1939"
    },
    {
      "invest": "28.57",
      "value": "628.5",
      "capital": "26.5",
      "firm": "Westinghouse",
      "year": "1940"
    },
    {
      "invest": "48.51",
      "value": "537.1",
      "capital": "36.2",
      "firm": "Westinghouse",
      "year": "1941"
    },
    {
      "invest": "43.34",
      "value": "561.2",
      "capital": "60.8",
      "firm": "Westinghouse",
      "year": "1942"
    },
    {
      "invest": "37.02",
      "value": "617.2",
      "capital": "84.4",
      "firm": "Westinghouse",
      "year": "1943"
    },
    {
      "invest": "37.81",
      "value": "626.7",
      "capital": "91.2",
      "firm": "Westinghouse",
      "year": "1944"
    },
    {
      "invest": "39.27",
      "value": "737.2",
      "capital": "92.4",
      "firm": "Westinghouse",
      "year": "1945"
    },
    {
      "invest": "53.46",
      "value": "760.5",
      "capital": "86",
      "firm": "Westinghouse",
      "year": "1946"
    },
    {
      "invest": "55.56",
      "value": "581.4",
      "capital": "111.1",
      "firm": "Westinghouse",
      "year": "1947"
    },
    {
      "invest": "49.56",
      "value": "662.3",
      "capital": "130.6",
      "firm": "Westinghouse",
      "year": "1948"
    },
    {
      "invest": "32.04",
      "value": "583.8",
      "capital": "141.8",
      "firm": "Westinghouse",
      "year": "1949"
    },
    {
      "invest": "32.24",
      "value": "635.2",
      "capital": "136.7",
      "firm": "Westinghouse",
      "year": "1950"
    },
    {
      "invest": "54.38",
      "value": "723.8",
      "capital": "129.7",
      "firm": "Westinghouse",
      "year": "1951"
    },
    {
      "invest": "71.78",
      "value": "864.1",
      "capital": "145.5",
      "firm": "Westinghouse",
      "year": "1952"
    },
    {
      "invest": "90.08",
      "value": "1193.5",
      "capital": "174.8",
      "firm": "Westinghouse",
      "year": "1953"
    },
    {
      "invest": "68.6",
      "value": "1188.9",
      "capital": "213.5",
      "firm": "Westinghouse",
      "year": "1954"
    },
    {
      "invest": "26.63",
      "value": "290.6",
      "capital": "162",
      "firm": "Goodyear",
      "year": "1935"
    },
    {
      "invest": "23.39",
      "value": "291.1",
      "capital": "174",
      "firm": "Goodyear",
      "year": "1936"
    },
    {
      "invest": "30.65",
      "value": "335",
      "capital": "183",
      "firm": "Goodyear",
      "year": "1937"
    },
    {
      "invest": "20.89",
      "value": "246",
      "capital": "198",
      "firm": "Goodyear",
      "year": "1938"
    },
    {
      "invest": "28.78",
      "value": "356.2",
      "capital": "208",
      "firm": "Goodyear",
      "year": "1939"
    },
    {
      "invest": "26.93",
      "value": "289.8",
      "capital": "223",
      "firm": "Goodyear",
      "year": "1940"
    },
    {
      "invest": "32.08",
      "value": "268.2",
      "capital": "234",
      "firm": "Goodyear",
      "year": "1941"
    },
    {
      "invest": "32.21",
      "value": "213.3",
      "capital": "248",
      "firm": "Goodyear",
      "year": "1942"
    },
    {
      "invest": "35.69",
      "value": "348.2",
      "capital": "274",
      "firm": "Goodyear",
      "year": "1943"
    },
    {
      "invest": "62.47",
      "value": "374.2",
      "capital": "282",
      "firm": "Goodyear",
      "year": "1944"
    },
    {
      "invest": "52.32",
      "value": "387.2",
      "capital": "316",
      "firm": "Goodyear",
      "year": "1945"
    },
    {
      "invest": "56.95",
      "value": "347.4",
      "capital": "302",
      "firm": "Goodyear",
      "year": "1946"
    },
    {
      "invest": "54.32",
      "value": "291.9",
      "capital": "333",
      "firm": "Goodyear",
      "year": "1947"
    },
    {
      "invest": "40.53",
      "value": "297.2",
      "capital": "359",
      "firm": "Goodyear",
      "year": "1948"
    },
    {
      "invest": "32.54",
      "value": "276.9",
      "capital": "370",
      "firm": "Goodyear",
      "year": "1949"
    },
    {
      "invest": "43.48",
      "value": "274.6",
      "capital": "376",
      "firm": "Goodyear",
      "year": "1950"
    },
    {
      "invest": "56.49",
      "value": "339.9",
      "capital": "391",
      "firm": "Goodyear",
      "year": "1951"
    },
    {
      "invest": "65.98",
      "value": "474.8",
      "capital": "414",
      "firm": "Goodyear",
      "year": "1952"
    },
    {
      "invest": "66.11",
      "value": "496",
      "capital": "443",
      "firm": "Goodyear",
      "year": "1953"
    },
    {
      "invest": "49.34",
      "value": "474.5",
      "capital": "468",
      "firm": "Goodyear",
      "year": "1954"
    },
    {
      "invest": "2.54",
      "value": "70.91",
      "capital": "4.5",
      "firm": "Diamond Match",
      "year": "1935"
    },
    {
      "invest": "2",
      "value": "87.94",
      "capital": "4.71",
      "firm": "Diamond Match",
      "year": "1936"
    },
    {
      "invest": "2.19",
      "value": "82.2",
      "capital": "4.57",
      "firm": "Diamond Match",
      "year": "1937"
    },
    {
      "invest": "1.99",
      "value": "58.72",
      "capital": "4.56",
      "firm": "Diamond Match",
      "year": "1938"
    },
    {
      "invest": "2.03",
      "value": "80.54",
      "capital": "4.38",
      "firm": "Diamond Match",
      "year": "1939"
    },
    {
      "invest": "1.81",
      "value": "86.47",
      "capital": "4.21",
      "firm": "Diamond Match",
      "year": "1940"
    },
    {
      "invest": "2.14",
      "value": "77.68",
      "capital": "4.12",
      "firm": "Diamond Match",
      "year": "1941"
    },
    {
      "invest": "1.86",
      "value": "62.16",
      "capital": "3.83",
      "firm": "Diamond Match",
      "year": "1942"
    },
    {
      "invest": "0.93",
      "value": "62.24",
      "capital": "3.58",
      "firm": "Diamond Match",
      "year": "1943"
    },
    {
      "invest": "1.18",
      "value": "61.82",
      "capital": "3.41",
      "firm": "Diamond Match",
      "year": "1944"
    },
    {
      "invest": "1.36",
      "value": "65.85",
      "capital": "3.31",
      "firm": "Diamond Match",
      "year": "1945"
    },
    {
      "invest": "2.24",
      "value": "69.54",
      "capital": "3.23",
      "firm": "Diamond Match",
      "year": "1946"
    },
    {
      "invest": "3.81",
      "value": "64.97",
      "capital": "3.9",
      "firm": "Diamond Match",
      "year": "1947"
    },
    {
      "invest": "5.66",
      "value": "68",
      "capital": "5.38",
      "firm": "Diamond Match",
      "year": "1948"
    },
    {
      "invest": "4.21",
      "value": "71.24",
      "capital": "7.39",
      "firm": "Diamond Match",
      "year": "1949"
    },
    {
      "invest": "3.42",
      "value": "69.05",
      "capital": "8.74",
      "firm": "Diamond Match",
      "year": "1950"
    },
    {
      "invest": "4.67",
      "value": "83.04",
      "capital": "9.07",
      "firm": "Diamond Match",
      "year": "1951"
    },
    {
      "invest": "6",
      "value": "74.42",
      "capital": "9.93",
      "firm": "Diamond Match",
      "year": "1952"
    },
    {
      "invest": "6.53",
      "value": "63.51",
      "capital": "11.68",
      "firm": "Diamond Match",
      "year": "1953"
    },
    {
      "invest": "5.12",
      "value": "58.12",
      "capital": "14.33",
      "firm": "Diamond Match",
      "year": "1954"
    },
    {
      "invest": "2.938",
      "value": "30.284",
      "capital": "52.011",
      "firm": "American Steel",
      "year": "1935"
    },
    {
      "invest": "5.643",
      "value": "43.909",
      "capital": "52.903",
      "firm": "American Steel",
      "year": "1936"
    },
    {
      "invest": "10.233",
      "value": "107.02",
      "capital": "54.499",
      "firm": "American Steel",
      "year": "1937"
    },
    {
      "invest": "4.046",
      "value": "68.306",
      "capital": "59.722",
      "firm": "American Steel",
      "year": "1938"
    },
    {
      "invest": "3.326",
      "value": "84.164",
      "capital": "61.659",
      "firm": "American Steel",
      "year": "1939"
    },
    {
      "invest": "4.68",
      "value": "69.157",
      "capital": "62.243",
      "firm": "American Steel",
      "year": "1940"
    },
    {
      "invest": "5.732",
      "value": "60.148",
      "capital": "63.361",
      "firm": "American Steel",
      "year": "1941"
    },
    {
      "invest": "12.117",
      "value": "49.332",
      "capital": "64.861",
      "firm": "American Steel",
      "year": "1942"
    },
    {
      "invest": "15.276",
      "value": "75.18",
      "capital": "67.953",
      "firm": "American Steel",
      "year": "1943"
    },
    {
      "invest": "9.275",
      "value": "62.05",
      "capital": "69.59",
      "firm": "American Steel",
      "year": "1944"
    },
    {
      "invest": "9.577",
      "value": "59.152",
      "capital": "69.144",
      "firm": "American Steel",
      "year": "1945"
    },
    {
      "invest": "3.956",
      "value": "68.424",
      "capital": "70.269",
      "firm": "American Steel",
      "year": "1946"
    },
    {
      "invest": "3.834",
      "value": "48.505",
      "capital": "71.051",
      "firm": "American Steel",
      "year": "1947"
    },
    {
      "invest": "5.97",
      "value": "40.507",
      "capital": "71.508",
      "firm": "American Steel",
      "year": "1948"
    },
    {
      "invest": "6.433",
      "value": "39.961",
      "capital": "73.827",
      "firm": "American Steel",
      "year": "1949"
    },
    {
      "invest": "4.77",
      "value": "36.494",
      "capital": "75.847",
      "firm": "American Steel",
      "year": "1950"
    },
    {
      "invest": "6.532",
      "value": "46.082",
      "capital": "77.367",
      "firm": "American Steel",
      "year": "1951"
    },
    {
      "invest": "7.329",
      "value": "57.616",
      "capital": "78.631",
      "firm": "American Steel",
      "year": "1952"
    },
    {
      "invest": "9.02",
      "value": "57.441",
      "capital": "80.215",
      "firm": "American Steel",
      "year": "1953"
    },
    {
      "invest": "6.281",
      "value": "47.165",
      "capital": "83.788",
      "firm": "American Steel",
      "year": "1954"
    }
  ],
  "meta": {
    "title": "Grunfeld Investment Data (1935–1954) - Free Download",
    "description": "Investment, market value, and capital stock data for 10 large US manufacturing firms from 1935 to 1954, a classic econometrics panel dataset. Contains 220 records. Download in Excel, CSV, PDF formats.",
    "seo_title": "Grunfeld Investment Data (1935–1954) | ListBase",
    "seo_description": "Download Grunfeld Investment Data (1935–1954) — 220 records. Available in Excel, CSV, PDF formats.",
    "key_takeaways": [
      "Contains 220 records / 5 fields",
      "Available for free download in Excel, CSV, and PDF formats",
      "Data sourced from: https://github.com/vincentarelbundock/Rdatasets"
    ]
  }
}