Consolidation accounting has not materially changed since APB Opinions 16 and 18. Only minor changes have been made such as the new rules requiring financial subsidiaries to be consolidated (FAS 94, 1989). The recent trend of mergers and acquisitions, however, represents a significant change in business environment from that which existed when consolidation accounting as we know it was formalized. Accordingly, there is concern that current consolidation practices may be less appropriate or relevant than before.
Schweikart, James A. and Walter F. O’Connor. 1989. "The World War II Experience and the Leadership of Entrepreneurship and Venture Investing Around Stanford University." E.C.R.S.B. 89-9. Robins School of Business White Paper Series. University of Richmond, Richmond, Virginia.