Passage A An economic historian codes thousands of probate records to estimate changes in household wealth. She publishes the coding rules because categories such as “tool,” “luxury,” and “productive asset” determine the patterns the dataset appears to show. Passage B A social historian argues that inventories omit informal ownership and may classify the same object differently across communities. Quantification remains useful, he says, but its categories must be interpreted alongside narrative evidence about local practice. Which interpretive feature of quantitative categories is acknowledged by both historians?