Volume 1: On the principles of political economy and taxation, Volume 2: Notes on Malthus's principles of political economy, Volume 3: Pamphlets and papers 1809-1811, Volume 4: Pamphlets and papers 1815-1823, Volume 5: Speeches and evidence, Volume 6: Letters 1810-1815, Volume 7: Letters 1816-1818, Volume 8: Letters 1819-1821, Volume 9: Letters July 1821-1823, Volume 10: Biographical miscellany including the Journal of a tour on the continent. Published for The Royal Ecomic Society David Ricardo (18 April 1772 ? 11 September 1823) was a British political economist. He was one of the most influential of the classical economists, along with Thomas Malthus, Adam Smith, and James Mill.