FIN.16:4.6 - Decide whether further information earns its cost

Describe the missing answer in terms of the decision it could change. “Obtain more market research” gives no stopping point. “Establish whether attainable annual contribution is above the amount needed to cover this purchase price before the offer expires” connects the inquiry to a financial threshold. The relevant source may be a customer confirmation, a supplier quotation, a contract interpretation or a bounded model comparison; another broad report may not answer it.

Compare the attainable inquiry with acting on the current basis, taking a smaller reversible action, preserving an option, deferring or stopping. Include the effort of obtaining and interpreting the answer, interruption of other work and the cost of delay. Information useful after the deadline earns no benefit for the earlier decision. Information can also justify a stronger claim or satisfy a real evidence requirement even when the physical action remains the same. Keep that use explicit.

When probabilities and a common value basis are supported, calculate the expected gain from the decisions that the inquiry would actually permit. The value of perfect information is an upper bound for a corresponding imperfect inquiry, not its purchase price. A test can misclassify the state, arrive too late or fail to reveal the variable needed. Include those conditions in the comparison. When numerical grounds are weak, identify the plausible answer that would reverse the choice and compare the burden qualitatively; inventing a probability makes the recommendation less defensible.

C.11.DUA develops this inquiry appraisal. Its use can end with a supported conditional recommendation now. A missing answer that prevents reliance on an important claim must remain visible, but it does not automatically require the receiver to commission a study. Where no adequate available continuation meets the governing constraints, return the precise impasse and the feasible way to reopen it.