In his December 17 piece, “Dual Class Stock: What Is a Fair Compromise?,” Professor John Coffee asked readers to suggest alternatives to his proposal for limiting dual class shares. We are posting below three insightful responses from Columbia Law School professors Jeffrey Gordon,  Zohar Goshen, and Joshua Mitts, followed by a brief counter-response from Professor Coffee. We would like to keep the conversation going, however, and would welcome further proposals on this issue—with explanations—especially from practicing lawyers. Please email pieces of no more than 400 words to me at rh2804@columbia.edu. Thanks much.