Dionysius LARDNER, Irish economist. Fellow, Royal Society; Honorary Fellow, State Society, Paris.
LARDNER, Dionysius was born in 1793 in Dublin, Ireland.
Bachelor of Arts, Master of Arts, Bachelor of Laws, Doctor of Laws Trinity College, Dublin, 1817, 1819, 1827, 1827.
As a scientific populariser and editor, his greatest achievement was probably the Cabinet Cyclopaedia, 133 vols (182949), which included numerous distinguished contributors. Only Railway Economy from amongst his many writings is a contribution to economics. In this work he examined various economic questions both mathematically and graphically in a way which Jevons acknowledged as an influence on his own thinking.
This included hints of a profit-maximising theory of the firm and an account of monopoly price discrimination. Marshall labelled Lardner’s conjecture that reductions in the costs of transport per unit of distance are likely to increase by the square of the distance of the sales area of the goods transported as Gardner’s Law of Squares’. Editor of encyclopaedic works and miscellaneous writer.
Professor Natural Philosophy, University London, 1827.