Almost following the 'Rule of Three' concept referred to in the management books which states that three companies tend to have dominant market share in any given sector, the sectoral indices of BSE are dominated by the big three companies. A big movement in the share price of these companies make impact on the value of entire sector.
The report projected that the BRIC economies together could be larger than some of the richest countries today, in terms of US dollar by 2025 and they could account for half the size of G6 countries against 15 per cent at present.