Dresdner Kleinwort Wasserstein (DrKW) has announced several senior appointments to its global derivatives division. Roberto Silvotti joins as a managing director and head of new product development, responsible for developing new products across all asset classes. He reports to Matteo Mazzocchi, head of global derivatives. Previously, Silvotti worked at Calyon Financial in London, where he was global head of structured credit, derivatives and CDO trading. In addition, Gregory Lieb and Rick Weinstein have been...