Restore confidence in stocks

The plunge of shares on Tuesday, which sent major domestic indexes to a 14-month low, should galvanize policymakers' resolve to arrest the dangerous and persistent pessimism about the Chinese mainland's stock markets.

Despite the absence of any significant domestic news that could have surprised investors, the benchmark Shanghai Composite Index dropped 6.4 percent to its lowest point since late 2014.

While investors are desperate to figure out the possible causes, which range from China's economic slowdown, fluctuating foreign exchange rates, plummeting international oil prices and higher US interest rates, their fears about a free-fall in the Chinese mainland's shares are erupting into near-panic now.