The formal merger between Royal Dutch Petroleum and Shell Transport & Trading to form a single listed company called Royal Dutch Shell plc will undoubtedly soothe the headache created by the company's historical dual-board structure, which has been blamed for a host of corporate governance ills. However, the merged company's index reweighting has caused plenty of headaches elsewhere.
The scale of the event makes it no normal reweighting exercise. The merger with Royal Dutch will increase the weighting...
