11.   In repos, the central bank buys back debt for a set period, boosting the amount of money available to commercial banks.

12.   In contrast, the shares held by Fodrie, Farmer, Sgarbi and others were restricted, meaning they could not be sold for a set period.

13.   Investors are often willing to pay more for non-callable premium bonds because they ensure a high level of tax-free income for a set period of time.

14.   Patents award an inventor exclusive rights to make or sell a product for a set period of time.

15.   Patents enable drug companies to market their products, free from generic competition, for a set period of time.

16.   Proposals range from a total ban to requiring that some mines incorporate a timing device that will deactivate or destroy them after a set period.

17.   Retirement for city employees is based on their three highest consecutive years of earnings over a set period.

18.   Term policies provide insurance for a set period of time without the investment features common in other types of life insurance.

19.   Term policies provide insurance for a set period of time, without the savings and investment features common in other types of life insurance.

20.   The moratorium could be lifted after a set period of time, or upon specified conditions being met.