Laffer curve D. Rockefeller and Henry Ford. While he served as Secretary of the U.S. Treasury Department his wealth peaked at around US$300–US$400 million. Personal income-tax receipts rose from US$719 million in 1921 to over US$1 billion in 1929, an average increase of 4.2% per year over an 8-year period, which supporters attribute to the rate cut. David Hume also expressed similar arguments in his essay "Of Taxes" in 1756, as did fellow Scottish economist Adam Smith, twenty years later. The Democratic party made a similar argument in the 1880s when high revenue from import tariffs raised during the Civil War (1861–1865)
George Laffer George Laffer George Richards Laffer (14 September 1866 – 7 December 1933) was an Australian politician. He was member of the South Australian House of Assembly from 1913 until 1933, representing the electorate of Alexandra for the Liberal Union, and its successors the Liberal Federation and Liberal and Country League. He was a minister in the Barwell government, and was Speaker of the South Australian House of Assembly from 1927 until 1930. Laffer was born at Coromandel Valley into a fruit-growing family, his father having emigrated from Cornwall in 1840. He continued in the family business, and was actively involved