Excessive market power by dominant corporations is widely decried across the political divide. Federal and state antitrust agencies have begun to reclaim their rightful roles in checking the power of a few firms to control so much of the economy. Historically, tax policy complemented these antitrust enforcers by leveling the economic playing field. Yet today, taxation remains overlooked both as a driver of current levels of market concentration and as a tool to remedy the problem.

Roosevelt’s Taxing Monopolies series explores how a rewriting of the tax code can work alongside other antimonopoly tools to curb the excessive economic and political power of large corporations and their owners.

On April 18, 2024, the Roosevelt Institute hosted a virtual roundtable discussion with a multidisciplinary circle of authors who presented their latest research on how the US tax code affects market concentration and how to reform the tax code.