Yale University is a non-profit corporation; the price of a share in Yale University is undefined-- it's zero over zero.

耶鲁大学可以看作是个非盈利组织,它的股价无法定义,是零除以零

耶鲁公开课 - 金融市场课程节选

There's the insurance company, could be a corporation and it could be either a non-profit corporation or a for-profit corporation owned by shareholders.

一个保险公司,可以是,非盈利性股份公司,也可以是以盈利为目的的股份公司

耶鲁公开课 - 金融市场课程节选