a.have participated unemployment insurance, the unit to which they belong and they themselves have performed the obligation of paying premium not less than one year;
按照规定参加失业保险，所在单位和本人已按照规定履行缴费义务满1年的；
2
A credit-default swap may be described as an insurance that investors buy to compensate for a loss if a particular debtor defaults on its obligation.
Payment of the premium is the most important obligation of the insured person, and is the proviso under which the insurance company will assume the responsibilities of the insurer.