With corporate political spending--some of it secret--expected to explode in the 2012 election cycle, a group of law professors is petitioning the U.S. Securities and Exchange Commission (SEC) to make a formal policy requiring corporations to disclose such expenditures to shareholders and the public.

“Disclosure of corporate political spending is necessary not only because shareholders are interested in receiving such information, but also because such information is necessary for corporate accountability and oversight mechanisms to work,” reads the petition, which is headed by Lucian A. Bebchuk of Harvard Law School and Robert J. Jackson, Jr of Columbia Law School ...