Thanks for the clarification , but what I still don’t understand is the sign interpretation in both formulas , would the positive sign imply that the company is bearing additional cost and the negative sign mean refunds for example , or the sign has no significance in calculating the periodic pension cost and we should only focus on the absolute value ?
It has been a while and I don’t want to dig out my books but curriculum formula seems backward: a negative figure would indicate a cost. But then the label they use is “cost”. Kind of idiotic to say pension cost is -$1000 (most people would infer negative cost as an income).
Let’s assume that company A has a completely new Defined Benefit pension plan. In the beginning, the net pension liability equals $0 ($0 plan assets minus $0 obligations).
In the first period, the plan obligation increases by $1000 because of service costs. If the employer makes no contribution to the plan, then the net pension liability would increase to $1000 ($0 plan assets minus $1000 obligations) and the periodic service costs would be exactly equal to that change.
If, however, the employer contributes $1000 to the plan in that period, then the net pension liability would remain at $0 ($1000 plan assets minus $1000 obligations). In this situation, although the change in net pension liability is $0, the periodic pension cost is $1000.
The Total periodic pension cost = (Ending funded status – Beginning funded status) - Employer contributions
^ however, in either of your example, total periodic pension cost = -$1,000. I am saying that it would be more meaningful for it to be total periodic pension cost = $1,000. If you ask accountants, a negative cost will always be perceived as a gain/income.
thank u all for the clarification, just to make sure that I fully understand what u guys said , according to the formula stated in the CFAI text , the sign has no useful interpretation cuz in all cases the result will be a cost, ie; there cant be any gains resulting from this formula, right ?
That is the thing. If the calculation results in a positive number, that cost is truly a gain! This could occur on rare occasion when the actual market return on plan assets exceeds the service and interest cost (or there are significant actuarial gains).