Key points are not available for this paper at this time.
John S. Hughes, Dennis E. Logue, Richard James Sweeney, Corporate International Diversification and Market Assigned Measures of Risk and Diversification, The Journal of Financial and Quantitative Analysis, Vol. 10, No. 4, 1975 Proceedings (Nov., 1975), pp. 627-637
Hughes et al. (Sat,) 研究了这一问题。