1841. Who invented the advertising agency
Volney Palmer opened the first US ad agency in 1841, paid by the newspapers. How that commission shaped agencies to the Mad Men era, and what replaced it.

The moment
Philadelphia, 1841. Volney B. Palmer takes a room at the north-west corner of Third and Chestnut streets and puts himself in the city directory as the agent of newspapers across the country [2]. A merchant who wants his notice in the country papers walks in, picks the towns, hands over his own copy and his money. Palmer sends the copy and the money on to the publishers and keeps a quarter of what they are paid [4]. He writes nothing. He is paid by the papers, so he advises what the papers need. By 1849 he has a paper of his own and an offer to draw up advertisements for merchants with no time to write them [7]. The business has every part of a modern agency except a client who pays the agent.
What came before
The problem was arithmetic. There were 75 newspapers in the United States in 1790, more than 360 in 1820 and more than 1,400 by 1840. A wholesaler who wanted the farm towns could not write to a thousand editors, and the editors could not sell their own space. Someone had to stand in the middle [6].
London had stood there first. William Tayler advertised himself in 1786 as agent of the country printers and booksellers. George Reynell opened an office in Chancery Lane in 1812 to place legal notices, and his firm stayed in the family for six generations. Both worked for the printers. Palmer ran the same business in America, and the record does not settle the year he started. The Smithsonian guide to the Ayer records and Duke’s Hartman Center say 1841, Tungate and Hower say 1842, and Fox says 1843 [10, 11, 7, 8, 2, 6, 1].
The space brokers who followed him refined the model and kept its flaw. George P. Rowell sold ads for a theatre programme in the holiday season of 1864, cleared $600 in a few weeks, and opened his own agency in Boston the following year, buying space in bulk and reselling it by the inch. He then published the first directory of American newspapers with circulations and rates, more than 5,000 titles. William James Carlton began canvassing for several papers in December 1864, mainly Methodist magazines; James Walter Thompson joined him as bookkeeper in 1868 and bought the one-man firm in 1878 for $500. Daniel Lord and Ambrose Thomas formed Lord and Thomas in Chicago in 1881, still a space broker. All of them lived on the publisher’s discount, which ran from 10 to 50 per cent depending on the paper and how quietly the deal was done [1, 2, 9, 14, 3, 5].
What it changed
The turn came in Philadelphia too. Francis Wayland Ayer had spent a year soliciting advertisements on commission for a Baptist weekly when, in 1869, he persuaded his father Nathan to put $250 into N. W. Ayer and Son [7]. In 1875 he offered a Pennsylvania rose grower, Dingee and Conard, what he called the open contract. The advertiser gave Ayer a budget and the authority to buy whichever space served it best; Ayer bought at the published rate, took no secret discounts, and was paid a set commission that advertiser, agent and publisher all knew. Fox marks it as the end of buying space low and selling it high [5][1]. Two years later Ayer bought Coe, Wetherill and Company, Palmer’s successor firm, and could claim the oldest line in the trade [7].
What a marketer could do the day after was hire someone who worked for him. Ayer proved it in 1880 by researching the grain output and farm papers of the whole country before pitching a Michigan maker of threshing machines, and refusing to sell the resulting book to anyone who was not a client [6]. The commission rate settled at 15 per cent of the gross rate by the early 1890s, and the American Association of Advertising Agencies, founded in 1917, fixed it there in 1918 [4]. Ayer almost always got the full 15 per cent; around 1898 Lord and Thomas got less, and Albert Lasker’s answer was to write the copy himself [3]. In 1904 he hired John E. Kennedy, a Canadian-born copywriter who told him advertising was salesmanship in print, at $16,000 a year when Lasker’s copywriters earned about $1,400 [3]. By 1906 Lasker could say that ninety per cent of the thought, energy and cost of running the agency went into copy [5].
Media buying, research and creative work, bundled and paid for out of one cut of the media money. That is the full-service agency.
The agency Palmer founded sold space in a market worth under $2 billion a year; the full-service agencies of the 1960s worked a market of $12 billion to $19 billion, and the holding companies of 2007 one of $280 billion [15].
Show the data
| Year | Current dollars (US$ m) | 2007 dollars (US$ m) |
|---|---|---|
| 1919 | 1930 | 23127 |
| 1920 | 2480 | 25705 |
| 1921 | 1930 | 22351 |
| 1922 | 2200 | 27146 |
| 1923 | 2400 | 29095 |
| 1924 | 2480 | 30065 |
| 1925 | 2600 | 30799 |
| 1926 | 2700 | 31622 |
| 1927 | 2720 | 32406 |
| 1928 | 2760 | 33264 |
| 1929 | 2850 | 34349 |
| 1930 | 2450 | 30412 |
| 1931 | 2100 | 28640 |
| 1932 | 1620 | 24693 |
| 1933 | 1325 | 21292 |
| 1934 | 1650 | 25526 |
| 1935 | 1720 | 26026 |
| 1936 | 1930 | 28783 |
| 1937 | 2100 | 30231 |
| 1938 | 1930 | 28375 |
| 1939 | 2010 | 29976 |
| 1940 | 2110 | 31243 |
| 1941 | 2250 | 31730 |
| 1942 | 2160 | 27470 |
| 1943 | 2490 | 29837 |
| 1944 | 2700 | 31802 |
| 1945 | 2840 | 32707 |
| 1946 | 3340 | 35507 |
| 1947 | 4260 | 39601 |
| 1948 | 4870 | 42065 |
| 1949 | 5210 | 45380 |
| 1950 | 5700 | 49029 |
| 1951 | 6420 | 51187 |
| 1952 | 7140 | 55644 |
| 1953 | 7740 | 59869 |
| 1954 | 8150 | 62807 |
| 1955 | 9150 | 70776 |
| 1956 | 9910 | 75527 |
| 1957 | 10270 | 75764 |
| 1958 | 10310 | 73954 |
| 1959 | 11270 | 80009 |
| 1960 | 11960 | 83760 |
| 1961 | 11860 | 82227 |
| 1962 | 12430 | 85041 |
| 1963 | 13100 | 88746 |
| 1964 | 14150 | 94622 |
| 1965 | 15250 | 100360 |
| 1966 | 16630 | 106074 |
| 1967 | 16870 | 104705 |
| 1968 | 18090 | 107760 |
| 1969 | 19420 | 109694 |
| 1970 | 19550 | 104451 |
| 1971 | 20700 | 105953 |
| 1972 | 23210 | 115106 |
| 1973 | 24980 | 116630 |
| 1974 | 26620 | 111934 |
| 1975 | 27900 | 107503 |
| 1976 | 33300 | 121320 |
| 1977 | 37440 | 128074 |
| 1978 | 43330 | 137765 |
| 1979 | 48780 | 139285 |
| 1980 | 53570 | 134770 |
| 1981 | 60460 | 137881 |
| 1982 | 66670 | 143220 |
| 1983 | 76000 | 158181 |
| 1984 | 88010 | 175596 |
| 1985 | 94900 | 182832 |
| 1986 | 102370 | 193625 |
| 1987 | 110270 | 201223 |
| 1988 | 118750 | 208089 |
| 1989 | 124770 | 208587 |
| 1990 | 129968 | 206139 |
| 1991 | 128352 | 195355 |
| 1992 | 133750 | 197622 |
| 1993 | 140956 | 202216 |
| 1994 | 153024 | 214048 |
| 1995 | 162930 | 221623 |
| 1996 | 175230 | 231518 |
| 1997 | 187529 | 242210 |
| 1998 | 206697 | 262873 |
| 1999 | 222308 | 276617 |
| 2000 | 247472 | 297915 |
| 2001 | 231287 | 270727 |
| 2002 | 236875 | 272953 |
| 2003 | 245477 | 276562 |
| 2004 | 263766 | 289458 |
| 2005 | 271074 | 287730 |
| 2006 | 281653 | 289616 |
| 2007 | 279612 | 279612 |
The commission era (to 1956) and the fee era (after 1960) sit on the same line: the share the economy gives to advertising moved with wars and recessions, not with how agencies were paid.
Show the data
| Year | Ad spend (US$ m) | GDP (US$ bn) | Ads as % of GDP |
|---|---|---|---|
| 1919 | 1930 | 78.3 | 2.5 |
| 1920 | 2480 | 88.4 | 2.8 |
| 1921 | 1930 | 73.6 | 2.6 |
| 1922 | 2200 | 73.4 | 3.0 |
| 1923 | 2400 | 85.4 | 2.8 |
| 1924 | 2480 | 87.0 | 2.9 |
| 1925 | 2600 | 90.6 | 2.9 |
| 1926 | 2700 | 97.0 | 2.8 |
| 1927 | 2720 | 95.5 | 2.8 |
| 1928 | 2760 | 97.4 | 2.8 |
| 1929 | 2850 | 103.6 | 2.8 |
| 1930 | 2450 | 91.2 | 2.7 |
| 1931 | 2100 | 76.5 | 2.7 |
| 1932 | 1620 | 58.7 | 2.8 |
| 1933 | 1325 | 56.4 | 2.3 |
| 1934 | 1650 | 66.0 | 2.5 |
| 1935 | 1720 | 73.3 | 2.3 |
| 1936 | 1930 | 83.8 | 2.3 |
| 1937 | 2100 | 91.9 | 2.3 |
| 1938 | 1930 | 86.1 | 2.2 |
| 1939 | 2010 | 92.2 | 2.2 |
| 1940 | 2110 | 101.4 | 2.1 |
| 1941 | 2250 | 126.7 | 1.8 |
| 1942 | 2160 | 161.9 | 1.3 |
| 1943 | 2490 | 198.6 | 1.3 |
| 1944 | 2700 | 219.8 | 1.2 |
| 1945 | 2840 | 223.1 | 1.3 |
| 1946 | 3340 | 222.3 | 1.5 |
| 1947 | 4260 | 244.2 | 1.7 |
| 1948 | 4870 | 269.2 | 1.8 |
| 1949 | 5210 | 267.3 | 1.9 |
| 1950 | 5700 | 293.8 | 1.9 |
| 1951 | 6420 | 339.3 | 1.9 |
| 1952 | 7140 | 358.3 | 2.0 |
| 1953 | 7740 | 379.4 | 2.0 |
| 1954 | 8150 | 380.4 | 2.1 |
| 1955 | 9150 | 414.8 | 2.2 |
| 1956 | 9910 | 437.5 | 2.3 |
| 1957 | 10270 | 461.1 | 2.2 |
| 1958 | 10310 | 467.2 | 2.2 |
| 1959 | 11270 | 506.6 | 2.2 |
| 1960 | 11960 | 526.4 | 2.3 |
| 1961 | 11860 | 544.7 | 2.2 |
| 1962 | 12430 | 585.6 | 2.1 |
| 1963 | 13100 | 617.7 | 2.1 |
| 1964 | 14150 | 663.6 | 2.1 |
| 1965 | 15250 | 719.1 | 2.1 |
| 1966 | 16630 | 787.8 | 2.1 |
| 1967 | 16870 | 832.6 | 2.0 |
| 1968 | 18090 | 910.0 | 2.0 |
| 1969 | 19420 | 984.6 | 2.0 |
| 1970 | 19550 | 1038.5 | 1.9 |
| 1971 | 20700 | 1127.1 | 1.8 |
| 1972 | 23210 | 1238.3 | 1.9 |
| 1973 | 24980 | 1382.7 | 1.8 |
| 1974 | 26620 | 1500.0 | 1.8 |
| 1975 | 27900 | 1638.3 | 1.7 |
| 1976 | 33300 | 1825.3 | 1.8 |
| 1977 | 37440 | 2030.9 | 1.8 |
| 1978 | 43330 | 2294.7 | 1.9 |
| 1979 | 48780 | 2563.3 | 1.9 |
| 1980 | 53570 | 2789.5 | 1.9 |
| 1981 | 60460 | 3128.4 | 1.9 |
| 1982 | 66670 | 3255.0 | 2.0 |
| 1983 | 76000 | 3536.7 | 2.1 |
| 1984 | 88010 | 3933.2 | 2.2 |
| 1985 | 94900 | 4220.3 | 2.2 |
| 1986 | 102370 | 4462.8 | 2.3 |
| 1987 | 110270 | 4739.5 | 2.3 |
| 1988 | 118750 | 5103.8 | 2.3 |
| 1989 | 124770 | 5484.4 | 2.3 |
| 1990 | 129968 | 5803.1 | 2.2 |
| 1991 | 128352 | 5995.9 | 2.1 |
| 1992 | 133750 | 6337.7 | 2.1 |
| 1993 | 140956 | 6657.4 | 2.1 |
| 1994 | 153024 | 7072.2 | 2.2 |
| 1995 | 162930 | 7397.7 | 2.2 |
| 1996 | 175230 | 7816.9 | 2.2 |
| 1997 | 187529 | 8304.3 | 2.3 |
| 1998 | 206697 | 8747.0 | 2.4 |
| 1999 | 222308 | 9268.4 | 2.4 |
| 2000 | 247472 | 9817.0 | 2.5 |
| 2001 | 231287 | 10128.0 | 2.3 |
| 2002 | 236875 | 10470.0 | 2.3 |
| 2003 | 245477 | 10961.0 | 2.2 |
| 2004 | 263766 | 11713.0 | 2.3 |
| 2005 | 271074 | 12456.0 | 2.2 |
| 2006 | 281653 | 13178.0 | 2.1 |
| 2007 | 279612 | 13807.0 | 2.0 |
The mechanism had a flaw its inventors knew. Paid on spend, an agency earns more when the client spends more, and nothing on advice to spend less or somewhere that pays no commission. Fees fixed that and introduced the next flaw, since an agency paid for hours earns more when the work takes longer. The ANA’s 2022 survey found 82 per cent of marketers paying by fee, and among advertisers spending $500 million or more a year, 53 per cent paying fixed or output-based fees, up from 5 per cent in 2016 [20]. The number of agencies did not shrink while the money changed hands.
The count of agencies did not fall when the commission went; employment in them rose from 147,102 in 1998 to 200,465 in 2023 [18].
Show the data
| Year | Establishments | Paid employees (week of 12 March) |
|---|---|---|
| 1998 | 13624 | 147102 |
| 2000 | 13866 | 167215 |
| 2003 | 12596 | 155939 |
| 2008 | 14312 | 165062 |
| 2010 | 13248 | 149095 |
| 2013 | 13101 | 185514 |
| 2015 | 13356 | 188781 |
| 2018 | 13737 | 187908 |
| 2020 | 14279 | 181742 |
| 2023 | 15512 | 200465 |
The Mad Men thread
The series gives readers a mid-sized Madison Avenue shop in 1960 that bills its clients a percentage of what it spends on their behalf. The real agencies did, and the pressure on the model was already public. In February 1956 the Four A’s signed a consent decree with the Justice Department’s antitrust chief, Stanley Barnes, agreeing to end the requirement that members collect a 15 per cent commission, to drop its ban on rebating, and to stop policing the industry. In November 1960 Shell asked Ogilvy, Benson and Mather to work for a fee instead; the fee was the actual cost of running the account plus 25 per cent, and the New York Times reported it as a surprise. To its advocates, Fox writes, the fee put the agency on the footing of an attorney or physician, paid for work done rather than for what the agent could spend [12, 1, 4].
Palmer’s office became Coe, Wetherill, which became part of Ayer in 1877. Carlton’s firm became J. Walter Thompson, which led the industry in billings from 1922 to 1972. Lasker became a one-quarter partner in Lord and Thomas in 1904 and sole owner in 1912, and in December 1942 worked out a plan to dissolve it. Foote, Cone and Belding opened at the turn of the year with three equal partners and the same staff in Chicago, New York, Los Angeles and San Francisco. The agency in the series is invented. The commission it lives on was built in these offices [7, 14, 3, 13].
What the commission had been doing showed once it was gone. In the 1990s the holding companies spun their media departments out as separate buying companies, MindShare at WPP, OMD and PhD at Omnicom, Zenith at Saatchi and Cordiant. By 2010 only 3 per cent of ANA members still used commission in any agreement; by 2016 it was back to 12 per cent, almost all of it for media buying and programmatic work. The medium Palmer brokered was by then losing most of its advertising money [9, 19].
The medium Palmer brokered carried the agency business for 160 years; in 2020 newspapers earned more from circulation ($11.1 billion) than from advertising for the first time in the series [17].
Show the data
| Year | Advertising revenue (US$ bn) |
|---|---|
| 1956 | 3.22 |
| 1957 | 3.27 |
| 1958 | 3.18 |
| 1959 | 3.53 |
| 1960 | 3.68 |
| 1961 | 3.6 |
| 1962 | 3.66 |
| 1963 | 3.78 |
| 1964 | 4.12 |
| 1965 | 4.43 |
| 1966 | 4.87 |
| 1967 | 4.91 |
| 1968 | 5.23 |
| 1969 | 5.71 |
| 1970 | 5.7 |
| 1971 | 6.17 |
| 1972 | 6.94 |
| 1973 | 7.48 |
| 1974 | 7.84 |
| 1975 | 8.23 |
| 1976 | 9.62 |
| 1977 | 10.75 |
| 1978 | 12.21 |
| 1979 | 13.86 |
| 1980 | 14.79 |
| 1981 | 16.53 |
| 1982 | 17.69 |
| 1983 | 20.58 |
| 1984 | 23.52 |
| 1985 | 25.17 |
| 1986 | 26.99 |
| 1987 | 29.41 |
| 1988 | 31.2 |
| 1989 | 32.37 |
| 1990 | 32.28 |
| 1991 | 30.35 |
| 1992 | 30.64 |
| 1993 | 31.87 |
| 1994 | 34.11 |
| 1995 | 36.09 |
| 1996 | 38.08 |
| 1997 | 41.33 |
| 1998 | 43.92 |
| 1999 | 46.29 |
| 2000 | 48.67 |
| 2001 | 44.3 |
| 2002 | 44.1 |
| 2003 | 46.16 |
| 2004 | 48.24 |
| 2005 | 49.44 |
| 2006 | 49.28 |
| 2007 | 45.38 |
| 2008 | 37.85 |
| 2009 | 27.56 |
| 2010 | 25.84 |
| 2011 | 27.08 |
| 2012 | 25.32 |
| 2013 | 23.59 |
| 2014 | 22.08 |
| 2015 | 20.36 |
| 2016 | 18.27 |
| 2017 | 16.48 |
| 2018 | 14.35 |
| 2019 | 12.86 |
| 2020 | 9.6 |
The four largest groups descended from this lineage, Publicis, WPP, Omnicom and Interpublic, reported 2024 revenue of $62.6 billion between them. The publisher’s discount is gone. What replaced it is still a cut of what clients spend on attention [23, 24, 25, 26].
Palmer's model, a cut of the money passing through, is at its strongest in the newest channel: the ANA found 28 per cent paying a fixed-rate commission and 12 per cent a sliding scale on programmatic services, against 4 and 1 per cent on offline planning [22].
Show the data
| Compensation method | Offline media planning | Offline media buying | Digital, search and social planning | Digital, search and social buying | Programmatic services |
|---|---|---|---|---|---|
| Commission, fixed rate | 4 | 10 | 8 | 17 | 28 |
| Commission, sliding scale | 1 | 2 | 6 | 7 | 12 |
| Labor-based fee | 54 | 48 | 48 | 38 | 25 |
| Fixed fee (deliverables) | 24 | 25 | 23 | 21 | 18 |
| Value-based fee | 1 | 0 | 0 | 0 | 1 |
| Media performance-based fee | 0 | 0 | 0 | 0 | 1 |
| Combination of fees and commissions | 14 | 13 | 13 | 15 | 11 |
| Other | 2 | 2 | 2 | 1 | 4 |
Applied: if you are a B2C brand
Say you sell a mid-price skincare line and must decide between an agency, a freelancer network and an in-house team. Before you look at a single portfolio, ask each option who pays it and on what. An agency paid a percentage of media has Palmer’s incentive, to grow the spend and steer it to where the percentage is earned. An agency on labour fees has the opposite one, and will staff your account generously. A freelancer network paid per deliverable has Ayer’s 1880 incentive in miniature, to do the work up front and win the next brief, which suits you until the brief needs a plan nobody is paid to write. An in-house team on salary has no reason to prefer one channel to another, which is also why it rarely challenges the channel it already knows.
So write the contract before the pitch. We sit on the agency side of this table, and the compensation clause is the page nobody reads at a pitch, on either side. Ask for the media plan with the agency’s own earnings shown line by line, as the ANA has pushed for since its 2016 transparency work. If the plan leans towards channels where the agency earns a commission, you are looking at the problem Ayer’s open contract solved in 1875, and it gets fixed in the contract [19].
Applied: if you are a B2B brand
Say you make industrial pumps and your media is trade press, LinkedIn and two conferences a year. Nobody earns a commission on any of it. Media-neutral advice, in this market, means advice from someone whose income does not change when you move money from the stand to the sponsored post. That is a different thing from advice that is right.
Ayer’s 1875 contract put the neutrality in the terms, so put yours there too. Pay for the plan as a fixed deliverable with a stated scope, so the adviser is not rewarded for a longer plan. Pay for execution separately and keep the right to execute in-house, as 30 per cent of ANA members already do for programmatic buying. Then test the adviser as the threshing-machine maker could test Ayer in 1880. Ask for the research before the recommendation, and read whether it argues from your buyers or from what the adviser happens to sell [22].
What to do with it
- Before any agency, consultant or network pitches you, write down the base each one will be paid on: media spend, hours, deliverables or outcomes. Reject any proposal where that base is not written into the contract.
- Require a media plan that shows the agency’s own revenue on every line. Any channel where the agency earns more than its blended rate needs a written justification before you approve the plan.
- If you pay for hours, cap the hours per deliverable in the scope and check the timesheets against the cap every quarter. That is the control the ANA’s 2022 respondents were moving towards with fixed fees [20].
- Keep media buying and advice as separate clauses so you can move either without moving both. The 1990s unbundling served the agencies; make it serve you.
- Once a year, have someone with no stake in the plan re-run the channel allocation from the buyer evidence alone, and compare it with the plan you bought.
Sources
- Fox, Stephen, 1984, The Mirror Makers: A History of American Advertising and Its Creators, Morrow; University of Illinois Press reprint 1997, pp. 14, 20 to 21, 30, 33, 260. https://books.google.com/books?id=QlVB6ARdT7kC
- Tungate, Mark, 2007, Adland: A Global History of Advertising, Kogan Page; 2nd edition 2013, pp. 10 to 14. https://books.google.com/books?id=7J3JeXJ7ITgC
- Cruikshank, Jeffrey L. and Arthur W. Schultz, 2010, The Man Who Sold America: The Amazing (but True!) Story of Albert D. Lasker and the Creation of the Advertising Century, Harvard Business Press, pp. 40 to 57, 83, 287, 346 to 349. https://books.google.com/books?id=rps48Kw51UIC
- Horsky, Sharon and Robert Zeithammer, 2022, "The Rise of 15%: Emergence and Persistence of Commissions in Advertising", working paper, 31 October 2022, Hebrew University Business School and UCLA Anderson. https://bpb-us-e2.wpmucdn.com/sites.utdallas.edu/dist/8/1090/files/2023/02/the_rise_of-15_emergence_and_persistence_of_commissions_in_advertising.pdf
- Zeithammer, Robert and Sharon Horsky, 2026, "A Model of the Evolution of Full-Service Advertising Agencies", working paper, 3 April 2026, UCLA Anderson, pp. 5 to 9. https://www.anderson.ucla.edu/sites/default/files/document/2026-05/Evolution%20of%20full-service%20advertising%20agencies.pdf
- Hower, Ralph M., 1939, The History of an Advertising Agency: N. W. Ayer and Son at Work, 1869 to 1939, Harvard University Press, pp. 16 to 17, 24, 63, 90, as quoted in sources 4 and 5.
- Smithsonian Institution, National Museum of American History Archives Center, Guide to the N W Ayer Advertising Agency Records, NMAH.AC.0059, historical note. https://sirismm.si.edu/EADpdfs/NMAH.AC.0059.pdf
- Duke University, John W. Hartman Center for Sales, Advertising and Marketing History, Emergence of Advertising in America, timeline 1850s to 1870s, and Early Advertising Publications (research and text by Ellen Gartrell). https://guides.library.duke.edu/c.php?g=494860&p=3410649 and https://library.duke.edu/rubenstein/scriptorium/eaa/printlit.html
- McDonough, John and Karen Egolf (eds), 2003, The Advertising Age Encyclopedia of Advertising, Routledge, pp. 125, 574 to 575, 752, 772, 803, 1530. https://books.google.com/books?id=HZLtCQAAQBAJ
- Guinness World Records, "First advertising agent" (William Tayler, London, 1786). https://www.guinnessworldrecords.com/world-records/67095-first-advertising-agent
- EPE Reynell, company profile (George Reynell, Chancery Lane, 1812). https://ch.linkedin.com/company/epe-reynell
- Time, 13 February 1956, "Advertising: Consent Decree". https://time.com/archive/6828448/advertising-consent-decree
- Chicagology, "Lord and Thomas", reproducing the Chicago Tribune of 29 December 1942 and an excerpt from source 3. https://chicagology.com/advertising/lordthomas
- Encyclopedia.com, "J. Walter Thompson Company", and AMA New York, "J. Walter Thompson and Co. and the 1964 Advertising Age Commemorative Issue" (Carlton's diary entry of 5 December 1864). https://www.encyclopedia.com/history/culture-magazines/j-walter-thompson-company and https://www.amanewyork.org/end-jwt-co
- Galbi, Douglas, 2008, "Annual U.S. Advertising Expenditure Since 1919", galbithink.org, revised 14 September 2008, from the Coen Structured Advertising Expenditure Dataset (Robert J. Coen, McCann Erickson), with the dataset note at purplemotes.net, 14 September 2008. https://www.galbithink.org/ad-spending.htm and https://www.purplemotes.net/2008/09/14/us-advertising-expenditure-data
- Federal Reserve Bank of Minneapolis, "Consumer Price Index, 1913-" (annual averages, 1982 to 1984 = 100). https://www.minneapolisfed.org/about-us/monetary-policy/inflation-calculator/consumer-price-index-1913-
- Pew Research Center, 2021, State of the News Media, Newspapers Fact Sheet, chart "Estimated advertising and circulation revenue of the newspaper industry", 29 June 2021. https://www.pewresearch.org/chart/sotnm-newspapers-newspaper-industry-estimated-advertising-and-circulation-revenue
- U.S. Census Bureau, County Business Patterns, U.S. summary files for 1998, 2000, 2003, 2008, 2010, 2013, 2015, 2018, 2020 and 2023, NAICS 541810. https://www2.census.gov/programs-surveys/cbp/datasets/
- ANA, 2017, "ANA Study Finds Agency Compensation Models Shifting Away From Fees and Incentives" (Trends in Agency Compensation, 17th edition, n = 82 member companies, more than 1,100 agreements, fielded December 2016 to January 2017). https://www.ana.net/content/show/id/pr-2017-compensation-models
- ANA, 2022, "Labor-Based Fees Remain Dominant Form of Agency Compensation" (Trends in Agency Compensation, 18th edition, n = 101 client-side marketers, 336 agency relationships, fielded second quarter 2022), 13 December 2022. https://www.ana.net/content/show/id/76981
- Aquino, Judith, 2013, "ANA Agency Compensation Survey: Performance Incentives On The Rise", AdExchanger (2013 Trends in Agency Compensation, n = 98). https://www.adexchanger.com/agencies/ana-agency-compensation-survey-performance-incentives-on-the-rise
- ANA, 2019, Media Agency Compensation Practices, September 2019, n = 86, fielded April 2019, pp. 3 to 8. https://s3.amazonaws.com/media.mediapost.com/uploads/MediaAgencyCompensation.pdf
- Publicis Groupe, 2025, 2024 Universal Registration Document, table of published revenue and net revenue of the top four groups in 2024 (Publicis $17,345 million, WPP $18,839 million, Omnicom $15,689 million, Interpublic $10,692 million at EUR 1 = USD 1.082 and GBP 1 = USD 1.243). https://publicisgroupe-csr-smart-data.com/assets/upload/en/universal_registration_document_2024.pdf
- Omnicom, 2025, "Omnicom Reports Fourth Quarter and Full Year 2024 Results", 4 February 2025 (revenue $15,689.1 million). https://investor.omc.com/news/news-details/2025/Omnicom-Reports-Fourth-Quarter-and-Full-Year-2024-Results/default.aspx
- WPP, 2025, "Preliminary Results 2024", February 2025 (revenue £14,741 million; revenue less pass-through costs £11,395 million). https://www.wpp.com/en/news/2025/02/preliminary-results-2024
- Interpublic Group, 2025, "IPG Announces Fourth Quarter and Full Year 2024 Results", 12 February 2025 (total revenue $10,691.7 million). https://www.globenewswire.com/news-release/2025/02/12/3024895/0/en/ipg-announces-fourth-quarter-and-full-year-2024-results.html
Every source cited across the Hive is listed in the Library.
