Counting: How We Use Numbers to Decide What Matters

Stone rejects the premise that numbers are objective, neutral facts that exist independently of human judgment. Her central claim is that every number begins with a prior decision about what to count—a classification built on cultural assumptions and social conventions. Counting is thus an art as much as an arithmetic, and the seemingly simple act of tallying is always already a political act. She argues that recognizing this does not mean abandoning numbers but reclaiming responsibility for how they are made and used.

Stone introduces the framework of 'quantitative imperialism'—the widespread belief that numbers are the most powerful and objective instrument for understanding reality—and argues against it. She organizes the book around questions that expose the constructed nature of numbers: Who is counting? What are they counting? Why are they counting? Through case studies of the U.S. Census, pain scales, parole algorithms, and GDP, she shows that the link between quantifying and classifying is inescapable, and that classification is always a moral and political choice.

Policy Paradox established Stone's critique of rational policy analysis by showing that political values are inherently paradoxical and contested. Counting extends that critique to the specific tool of quantification. Where Policy Paradox analyzed how goals like equity and efficiency resist neat definition, Counting shows that the numbers used to measure those goals are equally constructed. Both books share a skepticism toward claims of objectivity, but Counting focuses on the mechanism of counting itself as a site of political struggle.

Stone uses the Constitution's counting of enslaved people as three-fifths of a person to illustrate how numbers are always embedded in social and moral judgments. The compromise was not a mathematical necessity but a political settlement that classified human beings in a particular way to resolve a conflict over representation. She argues it set a precedent for using arithmetic to claim resolution of moral dilemmas, a pattern she sees recurring in contemporary debates over race, poverty, and criminal justice.

Reception was mixed. Publishers Weekly praised it as a 'stimulating layperson's guide to the pseudo-mathematical rationalizations behind so much of what governments do,' while noting that Stone gives short shrift to cost-benefit analysis's role in revealing unintended consequences. Some Amazon reviewers found the book polemical and biased, arguing it cherry-picks examples, while others called it essential reading for anyone working with data. The BBC featured Stone discussing the book, reflecting its reach beyond academia.

Some readers interpret Counting as an argument against using numbers altogether, a rejection of quantitative analysis in favor of pure qualitative judgment. Stone explicitly denies this. Her point is not that numbers are useless or that counting should be abandoned, but that numbers need to be interrogated—traced back to the judgments and classifications that produced them. She wants readers to be more skeptical consumers of numbers, not to reject them, and she acknowledges that numbers can serve as tools of resistance as well as instruments of power.