2Rajan, Raghuram, Henri Servaes and Luigi Zingales. The cost of diversity: The diversification discount and inefficient investment [J]. Journal of Finance, 2000, Vol. 60: 35-80.
3Berger P. G. and Ofek E. Diversification's effect on firm value [ J]. Journal of Financial Economics, 1995, Vol. 37: 39- 65.
4Lins Karl V. and Henri Servaes. International evidence on the value of corporate diversification [J]. Journal of Finance, 1999, Vol. 42: 2215 -2240.
5Lins Karl V. and Henri Servaes. Is corporate diversification beneficial in emerging markets? [J]. Financial Management, 2002, Vol. 31: 5-31.
6Megginson W., Morgan A. and Nail L. The determinants of positive long-term performance in strategic mergers: Corporate focus and cash [J]. Journal of Banking & Finance, 2004, Vol. 28 : 523 - 552.
