The work of Diodati (Naples 1763 - 1832) was considered by his contemporaries to be of fundamental importance, making use of the reading of the works of C. A. Broggia, Galiani and G. R. Carli (with the latter he appears to be in correspondence), he supported the need to raise the nominal value of Neapolitan gold and silver coins. The work achieved wide diffusion, so much so that D. himself could boast of having inspired the measures adopted in Genoa in that same year 1790 for the coinage of gold. But his proposal was not accepted by the Neapolitan government, which resorted to the expedient of increasing monetary circulation by issuing paper money. Furthermore, there was no lack of critical comments on his work: in the early 1990s a highly critical memoir was written, addressed to the king, and D. found himself forced to reiterate his arguments in a small volume published in Naples in 1994 (Response to some criticisms made of the work entitled: On the present state of money in the Kingdom of Naples). Diodati also introduced the circulation of foreign hard currencies into the Kingdom, regulating the exchange rate with official price lists ("tariff" of 1805) and devised wordings engraved along the edges of the new coin issues (piazze and half-plates) which prevented fraudulent "shearing" of circulating coins by the underworld. See Kress Library, 590. Catalono Einaudi, 1571. Fornari II, pag. 349 - 356.