Lehman Brothers has hired Jesse Kaptein as head of equity derivatives sales to Scandinavia, Belgium, the Netherlands and Luxembourg. He was previously co-head of Deutsche Bank’s Scandinavian derivatives sales business.A source said the team has been beefed up from two to five and that Lehmans was increasing its focus on derivatives across Europe focusing on both institutional and retail investors. Lehman Brothers has set up a pan-European equity derivatives and insurance group, and appointed And