Answer:
The open discussion of political and social issues.
Explanation:
the weakening of the soviet union in the late 1980s was encouraged by the soviet policy of <u>the open discussion of political and social issues.</u>
2008 would be a great example. Look up when the stock market crashes.
The Open Door policy was a statement of principles initiated by the United States in 1899 and 1900. It called for protection of equal privileges for all countries trading with China and for the support of Chinese territorial and administrative integrity.
hope this helps :)