How should one understand comparisons in which neither of two alternatives is at least as good as the other? Much recent literature on comparability problems focuses on what the appropriate explanation of the phenomenon is. Is it due to vagueness or the possibility of non-conventional comparative relations such as parity? This paper argues that the discussions on how to best explain comparability problems has reached an impasse at which it is hard to make any progress. To advance the discussion we (...) suggest a new classification of comparability problems that focuses on the problems they cause for practical reasoning. (shrink)

This paper argues that accepting incommensurability can be a useful step for developing attractive hybrid theories to how to distribute scarce health-related resources. If one provides opportunity for distributive options to be incommensurable with respect to substantive criteria, one can hold on to substantive criteria while also providing room for decision processes to play a significant role. The paper also argues that the strategy of accepting incommensurability is preferable to the strategy of having substantive criteria establish sets of options that (...) are equally, explains why incommensurability gives us reason to go hybrid, and argues that reasons grounded in decision processes have properties that make them appropriate as “tiebreakers” in choice situations characterized by incommensurability. (shrink)

Priority setting in healthcare is a highly contentious area of public decision making, in which different values often support incompatible policy options and compromise can be elusive. One promising approach to resolving priority-setting conflicts divides the decision-making process into two steps. In the first, a set of eligible options is identified; in the second, one of those options is chosen by a deliberative process. This paper considers the first step, examining proposals for identifying a set of options eligible for deliberation. (...) It focuses on the approach proposed by Anders Herlitz, which limits deliberation to options that are on a par; neither better or worse than, nor strictly equal to the alternatives. Once these “maximal” options are identified, the choice among them is made though a deliberative process that acknowledges the difficult tradeoffs which must be made. While parity and kindred notions are clearly useful in resolving some priority-setting conflicts, this paper argues that the conflicts that arise in setting priorities make it as difficult to decide which options are on a par as it is to decide among those options. The paper draws on priority-setting debates that occurred during the recent pandemic to illustrate the challenges in identifying eligible options: There may be sharp disagreement about how to understand and individuate relevant values; about whether certain values are relevant in a priority-setting context; about how to establish parity between “consequential” and “deontic” options, and about whether one option remains on a par with others after it is modified in various ways. (shrink)

Often, a health resource distribution (or, more generally, a health policy) ranks higher than another on one value, say, on promoting total population health; and lower on another, say, on promoting that of the worst off. Then, some opine, there need not be a rational determination as to which of the multiple distributions that partially fulfill both one ought to choose. Sometimes, reason determines only partially, intransitively, or contentiously which of the many “compromises” between these two values is best or (...) most choiceworthy. Norman Daniels, Ruth Chang, Martijn Boot, and Anders Herlitz affirm this opinion, which I shall call “value incommensurability,” “rational underdeterminacy,” or “reasonable disagreement.” To decide between the multiple reasonable compromises on health resource distribution, these philosophers recommend a deliberative democratic process, on two main grounds. First, in such situations, deliberation can produce the determinacy needed for decisionmaking. Second, by treating respectfully and justly even those patients or communities for whom the distributive compromise selected is bad, deliberation shields the legitimacy of that policy. Increasingly, practically-oriented bioethics recommends democratic deliberation even more expansively than these philosophers do—for nearly every decision on health resource distribution and not only when values are incommensurate—on these two grounds and on others. And one could propose a more modest variant on this expansive move as the justification of democratic deliberation. I argue that none of these moves warrants democratic deliberation on health policy. (shrink)

This paper introduces incommensurability, its potential relevance to population-level bioethics, and thecontributions to the special issue. It provides an overview of recent research on incommensurability, outlines somereasons to believe in its possibility and relevance, and presents some problems and opportunities that arise onceone accepts that incommensurability is possible.