Rules are meant to apply equally to all within their jurisdiction. However, some rules are frequently broken without consequence for most. These rules are only occasionally enforced, often at the discretion of a third-party observer. We propose that these rules—whose violations are frequent, and enforcement is rare—constitute a unique subclass of explicitly codified rules, which we call ‘phantom rules’ (e.g., proscribing jaywalking). Their apparent punishability is ambiguous and particularly susceptible to third-party motives. Across six experiments, (N = 1440) we validated (...) the existence of phantom rules and found evidence for their motivated enforcement. First, people played a modified Dictator Game with a novel frequently broken and rarely enforced rule (i.e., a phantom rule). People enforced this rule more often when the “dictator” was selfish (vs. fair) even though the rule only proscribed fractional offers (not selfishness). Then we turned to third person judgments of the U.S. legal system. We found these violations are recognizable to participants as both illegal and commonplace (Experiment 2), differentiable from violations of prototypical laws (Experiments 3) and enforced in a motivated way (Experiments 4a and 4b). Phantom rule violations (but not prototypical legal violations) are seen as more justifiably punished when the rule violator has also violated a social norm (vs. rule violation alone)—unless the motivation to punish has been satiated (Experiment 5). Phantom rules are frequently broken, codified rules. Consequently, their apparent punishability is ambiguous, and their enforcement is particularly susceptible to third party motives. (shrink)

The experimental philosophy of law is a recent movement that aims to inform traditional debates in jurisprudence by conducting empirical research. This paper introduces and provides a systematic overview of the main lines of research in this field. It also covers the most important debates in the literature regarding the implications of these findings for the philosophy and theory of law. It argues that three challenges arise when addressing (old) legal-philosophical questions in (new) experimental ways by drawing normative implications from (...) empirical data: such implications are value-driven, depend on explanations of empirical findings and vary across legal systems. (shrink)

There has been growing excitement in recent years about “dual‐character” concepts. Philosophers have argued that such concepts can help us make progress on a range of philosophical issues, from aesthetics to law to metaphysics. Dual‐character concepts are thought to have a distinctive internal structure, which relates a set of descriptive features to an abstract value, and which allows people to use either the descriptive features or the abstract value for determining the extension of the concept. Here, we skeptically investigate the (...) central argument in favor of their existence. Across three new empirical studies, we systematically demonstrate that the linguistic patterns that dual‐character concepts were originally posited to explain are likely better explained by much more general features of language use. (shrink)

In a series of ten preregistered experiments (N=2043), we investigate the effect of outcome valence on judgments of probability, negligence, and culpability – a phenomenon sometimes labelled moral (and legal) luck. We found that harmful outcomes, when contrasted with neutral outcomes, lead to increased perceived probability of harm ex post, and consequently to increased attribution of negligence and culpability. Rather than simply postulating a hindsight bias (as is common), we employ a variety of empirical means to demonstrate that the outcome-driven (...) asymmetry across perceived probabilities constitutes a systematic cognitive distortion. We then explore three distinct strategies to alleviate the hindsight bias and its downstream effects on mens rea and culpability ascriptions. Not all are successful, but at least some prove promising. They should, we argue, be taken into consideration in criminal jurisprudence, where distortions due to the hindsight bias are likely considerable and deeply disconcerting. (shrink)

Volume 14, Issue 4, December 2023, Page 510-514.

This essay is concerned with Brian Leiter’s so-called replacement naturalism, according to which the traditional methodology of conceptual jurisprudence ‘should be replaced by reliance on the best social scientific explanations of legal phenomena.’ I argue that, although the methodology of experimental jurisprudence is the only plausible replacement for the traditional methodology, it cannot can replace the philosophical methods traditionally used to address conceptual issues and, further, that experimental jurisprudence needs a theoretical foundation that properly locates its role relative to that (...) of conceptual theorising and clarifies its methodology. To this end, I discuss three recent studies that attempt to ascertain the intuitions of competent speakers on three longstanding conceptual disputes about law: two attempt to show our folk concept of law is antipositivist, whereas the other attempts to show our folk concept of law is consistent with the existence of sanction-less legal systems. I argue that all three studies suffer from defects indicating the empirical methodology of experimental jurisprudence can supplement, but cannot replace, the traditional philosophical methodology for addressing conceptual questions. I argue, finally and far more worrisomely, that the last study calls into question its usefulness even in supplementing the traditional philosophical methodology. (shrink)

Despite pervasive variation in the content of laws, legal theorists and anthropologists have argued that laws share certain abstract features and even speculated that law may be a human universal. In the present report, we evaluate this thesis through an experiment administered in 11 different countries. Are there cross‐cultural principles of law? In a between‐subjects design, participants (N = 3,054) were asked whether there could be laws that violate certain procedural principles (e.g., laws applied retrospectively or unintelligible laws), and also (...) whether there are any such laws. Confirming our preregistered prediction, people reported that such laws cannot exist, but also (paradoxically) that there are such laws. These results document cross‐culturally and –linguistically robust beliefs about the concept of law which defy people's grasp of how legal systems function in practice. (shrink)

Almost twenty years ago, a genuinely new school of thought emerged in the field of jurisprudential methodology. It is a pragmatist school. Roughly, the pragmatists contend that, when inquiring about the nature of law, we should evaluate potential answers based on practical criteria. For many legal philosophers, this contention seems both unclear and unhinged. That appearance is lamentable. The pragmatist approach to jurisprudential methodology has received insufficient attention for at least two reasons. First, the pragmatists do not conceive of themselves (...) as comprising a school; in fact, these proponents have different names for their common position, which makes it hard to see the commonalities. Second, the most famous statement of the pragmatist view has received withering criticism, criticism that has not been sufficiently answered, a fact that may lead opponents of pragmatism, as well as potential supporters, to doubt that a viable view of this kind can be held. This Essay aims to serve as a corrective. (shrink)

This chapter offers an overview of experimental legal philosophy with a special focus on questions in general jurisprudence, that part of legal philosophy that asks about the concept and nature of law. Much of the experimental general jurisprudence work has tended to follow the questions that have interested general jurisprudence scholars for decades, that is, questions about the relation between legal norms and moral norms. Wholesale criticism of experimental general jurisprudence is scant, but, given existing debates about experimental philosophy generally, (...) one can anticipate where disagreement is likely to occur. Outside of experimental general jurisprudence, there is plenty of vibrant discussion about how experimental results can enrich our understanding of various concepts that figure in everyday legal thought such as causation, intention, consent, or meaning. In the future, experimental legal philosophers should continue to consider the degree to which their project is purely descriptive or whether it is revisionary or pragmatic in its ambitions. Also, future work might consider whether to focus more attention on legal experts. (shrink)

Legal positivists maintain that the legality of a rule is fundamentally determined by social facts. Yet for much of legal history, ordinary officials used legal terminology in ways that seem inconsistent with positivism. Judges regularly cited, analyzed, and predicated their decisions on the ‘laws of justice’ which they claimed had universal legal import. This practice, though well-documented by historians, has received surprisingly little philosophical attention; I argue that it invites explanation from positivists. After taxonomizing the positivist’s explanatory options, I suggest (...) that the most viable option appeals to conceptual change: classical Romans, early modern Europeans, founding-era Americans were not using ‘law’ (or ‘lex’ or ‘jus’) to refer to the subject matter of contemporary legal philosophy. But the strategy is costly. It renders positivism’s truth surprisingly parochial. And it supplies new reasons for doubting positivist accounts of contemporary practices, including the treatment of moral principles in modern adjudication. (shrink)

There has been considerable debate in legal philosophy about how to attribute purposes to rules. Separately, within cognitive science, there has been a growing body of research concerned with questions about how people ordinarily attribute purposes. Here, we argue that these two separate fields might be connected by experimental jurisprudence. Across four studies, we find evidence for the claim that people use the same criteria to attribute purposes to physical objects and to rules. In both cases, purpose attributions appear to (...) be governed not so much by original intention or by moral value as by current practice. We argue that these findings in the cognitive science of purpose attribution have implications for jurisprudential questions involving purposivist legal interpretation. (shrink)