1.   But some charity advocates say the provision will also eliminate the only incentive that now exists to encourage more giving.

2.   In the United States, he said, the strict constitutional interpretation is that copyright exists to encourage continued creation.

3.   They exist to encourage people to see movies in general, even if they must discourage them from seeing some in particular.

4.   Without companies and banks going out of business, no valid threat exists to encourage prudent practices.