Corporations are increasingly adopting policies that govern their participation in the political process, acting to voluntarily disclose political contributions and impose restrictions on donations.

The findings come from the 2015 CPA-Zicklin Index of Corporate Political Disclosure and Accountability, released Thursday by the Center for Political Accountability and The Carol and Lawrence Zicklin Center for Business Ethics Research at the Wharton School of the University of Pennsylvania.

The index ranks corporations on a scale of zero to 100, based on their adoption and execution of political spending policies.

via This Ranking System Is Increasing Corporate Political Disclosure.