New Delhi, Sept. 4 -- In the period from 23 March to 21 August 2020, the Nifty has gained close to 50%.

Even at these levels, the index is lower than what it was when it hit its all-time high in mid-January. Still, there is a debate on whether equity investors should consider the markets as expensively valued and apply a brake on their investments. This is primarily because of the impact of covid-19 on the real economy and the risks to growth and income combined with fears of asset class bubbles in equity and gold on the back of global liquidity.

However, the systematic investment plans (SIP) inflow into the equity markets remains strong, indicating either of two investor behaviour traits. One, they have faith that the markets will correc...