Canadian billionaires give without pledge

Canada has 54 billionaires who could join the sole Canadian on Bill Gates and Warren Buffett's list of philanthropists pledging half of their wealth to charity. So what are they waiting for? Canadians haven't been invited to participate in the project in quite the same way Americans have, said Marvi Ricker, head of philanthropic services at BMO Harris Private Banking. Since the Microsoft power couple and oracle-investor challenged the richest U.S. citizens to donate half of their estates to charity six weeks ago, 40 American billionaires have signed on. Among them are Star Wars creator George Lucas, New York