Sell-off continues across global equity markets. As always during downturns, the mid-caps and small-caps have suffered more price erosion than large-caps. While the Nifty has lost 11 per cent since January, the mid-cap index has shed 14.5 per cent and the small-cap index 19 per cent. In terms of valuation, the market is trading at a price-to-earning (PE) of 19-20, but roughly two-thirds of the stocks in the broad NSE500 have lost over 30 per cent. There are several reasons why small-caps and mid-caps are inherently more volatile. One is that in fundamental terms, the larger a firm, the more