Billionaire Nicolas Berggruen’s self-funded California think tank, the Think Long Committee for California , has backed off from a proposed ballot initiative to put a tax on services on while lowering income tax. The Los Angeles-based think tank, comprised of members such as Eric Schmidt, George Schultz, Eli Broad, Condoleezza Rice and Gray Davis, now plans to put a proposal before voters in 2014, during the next California governor’s race.