For example, central banks in advanced economies  2  BIS central bankers’ speeches  have been pursuing ultra monetary easing through unconventional monetary policies to achieve price stability while responding to the economic downturn after the global financial crisis.
In that situation, investment in high-risk assets such as high-yield bonds and emerging economies’ bonds and stocks has been expanding considerably against a backdrop of declining volatility in interest rates, stock prices, and foreign exchange rates, as well as investors’ search for yields.