Discount Rate Magic
from an article in Business Standard
DaimlerChrysler said in its disclosure that the SEC had asked for information “relating to the discount rate and discount rate methodology” that it had used in calculating retirement benefits for its employees in North America.
The discount rate is the most powerful of all the actuarial assumptions used in pension calculations. Tiny fluctuations in the chosen rate can translate into billion-dollar differences in the pension values that a company the size of GM reports to its shareholders.
In its latest financial report, GM said it had pension obligations of $89.4 billion and had set aside $90.9 billion to pay them. For every 0.25 percent reduction in its discount rate, GM has said, its obligations would increase by $2.3 billion.