How do political parties release their beliefs?

Propaganda

Explanation:

prop·a·gan·da  - information, especially of a biased or misleading nature, used to promote or publicize a particular political cause or point of view.

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china and usa

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an expansion is one of two basic business cycle phases; the other is contraction. the transition from expansion to contraction is a peak, and the changeover from contraction to expansion is a trough.