Increased discount rate will have 2 impacts on 2 components of pension expense:
It will 1/ decrease service cost ( due to higher discount rate, thus lower PV)
2/ increase interest cost
Normally this will apply to non mature fund, that is the increase is smaller than the decrease (above), therefore net effect is the decrease in pension expense. It’s the other case for mature plan: interest cost’s effect will be dominant .
Why wouldn’t the cash flow from operating activity
is also reduced.
For this question im not sure, essentially pension expense in non cash charge and thus should be added back to calculate CFO. THerefore logically speaking, it will reduce the CFO (compare to higher expense)
The net increase to CFO = t* Pension expense. Because pension expense is lower in this case, the net increase is lower. Thus that makes the CFO lower than the case of higher pension expense ( if low discount rater)