ALBANY—Leaders of good-government groups are using an upcoming report from the Moreland Commission to Investigation Public Corruption, scheduled for Dec. 1, to drum up support for a public-financing system for state elections.

Tuesday evening, the leaders of Common Cause, Citizen Action of New York and the Fair Elections for New York Campaign hosted a conference call with state Comptroller Thomas DiNapoli in which the comptroller addressed the chief criticism of public financing: the cost involved. He said a statewide system would cost $26 to $41 million.

“In the context of a multi-billion dollar budget, spending $40 million is a small investment with a big payback,” DiNapoli said.

New York City Comptroller-elect Stringer, who was also on the call, spoke to the benefits of New York City’s small-donor matching system, which he ran under this year. He said candidates who can’t self-fund just need enough money to get their message out.