What strategies have been used in the past to manipulate or disrupt global economic markets?
user
In the past, countries and organizations have used a variety of strategies to manipulate or disrupt global economic markets, such as intervening in currency exchange rates, creating false impressions of economic stability or strength to lure investors, undervaluing their currencies, supporting favored businesses and industries through government subsidies and low-interest loans, rigging bond yields in an effort to improve the country's debt profile, capital control initiatives designed to boost the economy or gain advantage in trade negotiations 
and encouraging "round-trip" (false) speculation on the currency markets.
assistant
What strategies have been used in the past to manipulate or disrupt global economic markets?
user
In the past, countries or groups of individuals have employed numerous strategies to manipulates and disrupt global economic markets. These have included large-scale dumping of currency futures, market speculation, price volatility trading, investment strategies designed to cause massive share value losses for corporations and governments alike, as well as the spreading false information. In addition, cyber attacks targeted at vulnerable financial institutions are also a common method employed to manipulate markets for gain.
assistant
What strategies have been used in the past to manipulate or disrupt global economic markets?