Economists and financiers are thinking creatively about investing in cancer research, in desperate need of funding. Earlier this week, some of America's top cancer doctors convened in Boston for some intensive brainstorming about future research into the disease. But this particular gathering, organized by the MIT Sloan School of Management and known as CanceRX, featured a novel twist: next to the oncologists, there were renowned economists such as Andrew Lo and Robert Merton. More unusual still, there were bankers and financiers too.