Fraud in Europe is complex and well organised: it crosses organisational and geographic boundaries. The policing of fraud, on the other hand, is characterised both at national and transnational levels by fragmentation and divided accountability. This paper considers the issues involved in combating fraud in European institutions and spending programmes. It discusses the roles of those bodies with transnational responsibilities such as UCLAF , the European Fraud Prevention Office and the European Court of Auditors. The paper considers the difficulties associated (...) with the Corpus Juris proposals for a single European legal area to facilitate the fight against fraud related to the European Budget. It concludes that the task of policing Europe is hampered not only by the diversity of national political and jurisprudential systems, but also by the weakness and lack of independence of the transnational institutions. (shrink)

Fraud in Europe is complex and well organised: it crosses organisational and geographic boundaries. The policing of fraud, on the other hand, is characterised both at national and transnational levels by fragmentation and divided accountability. This paper considers the issues involved in combating fraud in European institutions and spending programmes. It discusses the roles of those bodies with transnational responsibilities such as UCLAF, the European Fraud Prevention Office and the European Court of Auditors. The paper considers the difficulties associated with (...) the Corpus Juris proposals for a single European legal area to facilitate the fight against fraud related to the European Budget. It concludes that the task of policing Europe is hampered not only by the diversity of national political and jurisprudential systems, but also by the weakness and lack of independence of the transnational institutions. (shrink)

Mechanistic philosophy of science views a large part of scientific activity as engaged in modelling mechanisms. While science textbooks tend to offer qualitative models of mechanisms, there is increasing demand for models from which one can draw quantitative predictions and explanations. Casini et al. (Theoria 26(1):5–33, 2011) put forward the Recursive Bayesian Networks (RBN) formalism as well suited to this end. The RBN formalism is an extension of the standard Bayesian net formalism, an extension that allows for modelling the hierarchical (...) nature of mechanisms. Like the standard Bayesian net formalism, it models causal relationships using directed acyclic graphs. Given this appeal to acyclicity, causal cycles pose a prima facie problem for the RBN approach. This paper argues that the problem is a significant one given the ubiquity of causal cycles in mechanisms, but that the problem can be solved by combining two sorts of solution strategy in a judicious way. (shrink)

Following the announcement in 1949 in the USA that cortisone offered rheumatoid arthritis sufferers effective treatment for their crippling disease, the Ministry of Health came under considerable pressure from the medical profession and the public to make cortisone available in Britain. The Ministry, therefore, urged British companies to start manufacturing cortisone. Among the several pharmaceutical firms responding to the Ministry’s request, Glaxo’s expertise in the field of vitamins gave them a head start. This paper describes the varied and flexible strategy (...) that enabled Glaxo to maintain this head start, and the scientific and technical capabilities which the company subsequently built up, enabling them to dominate the market for corticosteroids in Britain.Among the drugs to emerge out of the Glaxo project to manufacture cortisone, which began in 1950 and later became a wider R&D programme on steroids, was the topical steroid Betnovate, launched in 1963, which remains a best-seller today. However, although it led to successful new products, Glaxo’s programme had limitations. The paper identifies a missed opportunity, in the shape of the biosynthetic route to steroid drugs, often considered as a milestone in the development of the new biotechnology. Whether or not this missed opportunity proved costly to the company is uncertain. However, it illustrates the role of technological path-dependence, and the importance of the integration between different scientific disciplines, in this case chemistry and biology, in pharmaceutical innovation. (shrink)

ABSTRACTHélène Landemore's Democratic Reason offers a new justification for democracy and for broad-based citizen participation, appealing to the “emergent” intelligence of large, diverse groups. She argues that ordinary citizens should rule as directly as possible because they will make better informed, more intelligent decisions than, for example, appointed officials, councils of experts, or even elected representatives. The foundation of this conclusion is the premise that “diversity trumps ability” in a wide range of contexts. But the main support for that claim (...) is merely a series of computer experiments that are strongly biased toward that result and tell us essentially nothing about decision making in real-world political settings. Moreover, Landemore's analyses of alternative forms of rule deal only in abstract comparisons between sharply distinguished ideal types. Among other difficulties, they entirely overlook the central consideration in such comparisons: the relative ability of any decision-making process to go beyond stereotyped, intrinsic strategies and integrate multiple sources and varieties of information. In the end, Landemore's claims for the superior intelligence of broadly participatory forms are thus not supported by credible evidence. (shrink)

What accounts for the capacity of ordinary speakers to comprehend utterances of their language? The phenomenology of hearing speech in one’s own language makes it tempting to many epistemologists to look to perception for an answer to this question. That is, just as a visual experience as of a red square is often taken to give the perceiver immediate justification for believing that there is a red square in front of her, perhaps an auditory experience as of the speaker asserting (...) that p gives the competent hearer immediate justification for believing that the speaker has asserted that p. My aim here is to offer reasons for resisting this temptation. I argue that the perceptual model cannot adequately account for the hearer’s justification in many cases. The arguments here also allow us to draw certain further morals about the role of phenomenology in the epistemology of perception. (shrink)

To the general reader and watcher of television programmes medical ethics may appear to be something new. This is not so, for hundreds of articles and many books have appeared over the last 10 years or so to discuss and analyse the problems arising from the practice of medicine. In this study of two larger works - Medical Ethics and Manipulation - both by Bernard Häring, a Roman Catholic theologian - Father Brendan Soane analyses these in some detail and (...) sets their ideas in the context of what has already been written on the major issues of medical ethics and what is likely to be foremost in discussion in the near future. Many readers of this Journal already have the particular background of knowledge to see the problems in medicine which are in fact ethical but the general reader may require help and enlightenment and this is now provided for a special field within the field. (shrink)

In this vivid and incisive guide, philosophy comes to life. Using the central idea of causality as a guiding principle, Brendan Wilson shows how the history of philosophy becomes a very clear and natural sequence of events. The resulting perspective reveals the deep connections between the problems of science, mind and reality, freedom and responsibility, knowledge, language, truth and religion. Newcomers to philosophy will be able to engage with the great questions and ideas of the western tradition. The writing (...) is clear and jargon-free, while the 'short-chapter' format gives the reader time to pause and think at each step along the way. Style and layout put accessibility first and the many illustrations include explanatory diagrams and drawings as well as pictures of philosophers from Aristotle to Wittgenstein. Key Features Encourages critical and independent thinking Written in an engaging, non-technical style Makes clear sense of philosophy's rich and complex history Presents a distinctive argument Provides a wide range of case studies and examples from philosophy, science and law Text Features Chapter overviews Chapter sub-headings for ease of use Carefully-chosen quotations from philosophers ancient and modern End of chapter discussion points An open and attractive page layout Lavish and relevant illustrations, including photographs, diagrams, explanatory boxes and drawings. (shrink)

In this paper, we contend that the psychology of addiction is similar to the psychology of ordinary, non-addictive temptation in important respects, and explore the ways in which these parallels can illuminate both addiction and ordinary action. The incentive salience account of addiction proposed by Robinson and Berridge (1993; 2001; 2008) entails that addictive desires are not in their nature different from many of the desires had by non-addicts; what is different is rather the way that addictive desires are acquired, (...) which in turn affects their strength. We examine these “incentive salience” desires, both in addicts and non-addicts, contrasting them with more cognitive desires. On this account, the self-control challenge faced by addicted agents is not different in kind from that faced by non-addicted agents – though the two may, of course, differ greatly in degree of difficulty. We explore a general model of self-control for both the addict and the non-addict, stressing that self-control may be employed at three different stages, and examining the ways in which it might be strengthened. This helps elucidate a general model of intentional action. (shrink)

This paper argues that promises are proposals in joint practical deliberation, the activity of deciding together what to do. More precisely: to promise to ϕ is to propose (in a particular way) to decide together with your addressee(s) that you will ϕ. I defend this deliberative theory by showing that the activity of joint practical deliberation naturally gives rise to a speech act with exactly the same properties as promises. A certain kind of proposal to make a joint decision regarding (...) one's own actions turns out to have the very same normative effects, under the very same conditions, as a promise. I submit that this cannot be a coincidence: we should conclude that promises and the relevant kind of proposals in joint practical deliberation are one and the same. (shrink)

Pairs of sentences like the following pose a problem for ontology: (1) Jupiter has four moons. (2) The number of moons of Jupiter is four. (2) is intuitively a trivial paraphrase of (1). And yet while (1) seems ontologically innocent, (2) appears to imply the existence of numbers. Thomas Hofweber proposes that we can resolve the puzzle by recognizing that sentence (2) is syntactically derived from, and has the same meaning as, sentence (1). Despite appearances, the expressions ‘the number of (...) moons of Jupiter’ and ‘four’ do not function semantically as singular terms in (2). Hofweber’s primary evidence for this proposal concerns differences in the focus-related communicative functions of (1) and (2). In this paper I raise several serious problems for Hofweber’s proposal, and for his attempt to support it by appeal to focus-related phenomena. I conclude by offering independent evidence for an alternative, purely pragmatic resolution of the ontological puzzle. (shrink)

Alaska s Aleutian Island chain, barren and windswept, arcs for over a thousand miles toward Asia from the Alaska Peninsula. In this remote and hostile archipelago is Kiska, an uninhabited sub-arctic speck in the tempestuous Bering Sea. Few have the opportunity even to visit this island, but in June of 1942 Japanese troops seized Kiska and neighboring Attu in the only occupation of North American territory since the War of 1812. The bastion of Japan s possessions in Alaska, Kiska was (...) soon fortified with 7,500 enemy troops, a seaplane base, naval anchorage and submarine base, heavy guns and a labyrinth of tunnels. For thirteen months Japanese troops held a tenuous hold on the island under constant bombardment from American forces, but finally and successfully abandoning the island. So hurried was the evacuation that equipment and personal effects were left behind. The Japanese occupiers of Kiska have remained shadowy figures. Brendan Coyle spent 51 days on Kiska searching out the tunnels, equipment and personal effects frozen in time. Those objects are brought back to life in the over three hundred images Coyle has assembled from his own visit and from archives. His writing puts the images in historical and contemporary perspective, opening a new window on a remote battlefield and unforgiving landscape.". (shrink)

Evidence-based medicine (EBM) makes use of explicit procedures for grading evidence for causal claims. Normally, these procedures categorise evidence of correlation produced by statistical trials as better evidence for a causal claim than evidence of mechanisms produced by other methods. We argue, in contrast, that evidence of mechanisms needs to be viewed as complementary to, rather than inferior to, evidence of correlation. In this paper we first set out the case for treating evidence of mechanisms alongside evidence of correlation in (...) explicit protocols for evaluating evidence. Next we provide case studies which exemplify the ways in which evidence of mechanisms complements evidence of correlation in practice. Finally, we put forward some general considerations as to how the two sorts of evidence can be more closely integrated by EBM. (shrink)

The literature contains a disconnect between accounts of how humans learn lexical semantic representations for words. Theories generally propose that lexical semantics are learned either through perceptual experience or through exposure to regularities in language. We propose here a model to integrate these two information sources. Specifically, the model uses the global structure of memory to exploit the redundancy between language and perception in order to generate inferred perceptual representations for words with which the model has no perceptual experience. We (...) test the model on a variety of different datasets from grounded cognition experiments and demonstrate that this diverse set of results can be explained as perceptual simulation (cf. Barsalou, Simmons, Barbey, & Wilson, 2003) within a global memory model. (shrink)

Infinitism is often presented as a rival to foundationalism and coherentism as available answers to the epistemic regress problem. The most prominent contemporary defense of infinitism, due to Peter Klein, rests on the notion that an agent can perpetually amplify the justification for her belief insofar as they are able to iteratively answer an interlocutor’s questions why the proffered grounds for their belief should count as providing justification for that belief. We show that this argument does not offer any basis (...) for preferring infinitism over foundationalism and coherentism, because those views are able to accommodate the insight that justification for a belief can be continually amplified. Klein’s argument for infinitism thus falls short of its aspirations of proving that infinitism qua rival of foundationalism and coherentism is the most credible solution to the epistemic regress problem. (shrink)

In the 2016 film Doctor Strange, the title character undergoes a radical transition from successful neurosurgeon to highly skilled sorcerer. Unsurprisingly, he finds this transition difficult, in no small part because he thinks that sorcery seems somehow “unscientific.” Nevertheless, he eventually comes to adopt sorcery as wholeheartedly as he had embraced medicine. Some of his reasons for making this transition are personal, such as his desire to fix his injured hands and, later, to help others. Strange also displays the same (...) sorts of motivations that might drive any scientist: his intellectual curiosity drives him to understand how the Ancient One cured a paraplegic, and his desire to make a positive difference leads him to push the boundaries of sorcery. -/- This chapter will examine what Strange’s transition can teach us about the nature of scientific inquiry. More specifically, we’ll think about when it might make sense for scientists like Dr. Strange to change their approach. This will also allow us to explore what it means to practice science more generally. Some of what we learn might be surprising. For example, while it might seem obvious to us (and maybe even to Strange) that sorcery can’t count as a science, there are reasons for doubting this quick conclusion, at least in the sort of world that Dr. Strange lives in. Finally, we’ll consider what all of this means for science in our world, where things differ quite significantly. (shrink)

English mass noun phrases & count noun phrases differ only minimally grammatically. The basis for the difference is ascribed to a difference in the features +/-CT. These features serve the morphosyntactic function of determining the available options for the assigment of grammatical number, itself determined by the features +/-PL: +CT places no restriction on the available options, while -CT, in the unmarked case, restricts the available options to -PL. They also serve the semantic function of determining the sort of denotation (...) associated with demonstrative & quantified noun phrases. The feature -CT requires that the associated denotation be the set whose sole member is the greatest aggregate of which the noun phrase or noun is true; the feature +CT requires that the associated denotation be the set whose members are all & only those minimal aggregates of which the noun phrase or noun is true. At the same time, neither mass NPs nor count NPs that are arguments of a predicate have their predicate evaluated with respect to their denotations. Rather, the predicate is evaluated with respect to an aggregation, a set of aggregates constructed from the denotation of the noun phrase that is an argument of the predicate. 3 Tables, 4 Figures, 74 References. AA. (shrink)

Distributional models of semantics learn word meanings from contextual co‐occurrence patterns across a large sample of natural language. Early models, such as LSA and HAL (Landauer & Dumais, 1997; Lund & Burgess, 1996), counted co‐occurrence events; later models, such as BEAGLE (Jones & Mewhort, 2007), replaced counting co‐occurrences with vector accumulation. All of these models learned from positive information only: Words that occur together within a context become related to each other. A recent class of distributional models, referred to as (...) neural embedding models, are based on a prediction process embedded in the functioning of a neural network: Such models predict words that should surround a target word in a given context (e.g., word2vec; Mikolov, Sutskever, Chen, Corrado, & Dean, 2013). An error signal derived from the prediction is used to update each word's representation via backpropagation. However, another key difference in predictive models is their use of negative information in addition to positive information to develop a semantic representation. The models use negative examples to predict words that should not surround a word in a given context. As before, an error signal derived from the prediction prompts an update of the word's representation, a procedure referred to as negative sampling. Standard uses of word2vec recommend a greater or equal ratio of negative to positive sampling. The use of negative information in developing a representation of semantic information is often thought to be intimately associated with word2vec's prediction process. We assess the role of negative information in developing a semantic representation and show that its power does not reflect the use of a prediction mechanism. Finally, we show how negative information can be efficiently integrated into classic count‐based semantic models using parameter‐free analytical transformations. (shrink)

In his justly celebrated Expert Political Judgment, Philip E. Tetlock evaluates the judgment of economic and political experts by rigorously testing their ability to make accurate predictions. He finds that ability profoundly limited, implying that expert judgment is virtually useless, if not worse. He concludes by proposing a project that would seek to improve experts' performance by holding them publicly accountable for their claims. But Tetlock's methods severely underestimate the value of expert opinion. Despite their notorious disagreements, experts have highly (...) pertinent information and advice in many areas of public policy. The main problem with experts is that political actors seize on their most extreme views in one direction or the other, and overlook their areas of general agreement and the core of relatively reliable information that they provide. (shrink)

_Lakatos: An Introduction_ provides a thorough overview of both Lakatos's thought and his place in twentieth century philosophy. It is an essential and insightful read for students and anyone interested in the philosophy of science.

One way to challenge the substantiveness of a particular philosophical issue is to argue that those who debate the issue are engaged in a merely verbal dispute. For example, it has been maintained that the apparent disagreement over the mind/brain identity thesis is a merely verbal dispute, and thus that there is no substantive question of whether or not mental properties are identical to neurological properties. The goal of this paper is to help clarify the relationship between mere verbalness and (...) substantiveness. I first argue that we should see mere verbalness as a certain kind of discourse defect that arises when the parties differ as to what each takes to be the immediate question under discussion. I then argue that mere verbalness, so understood, does not imply that the question either party is attempting to address is a non-substantive one. Even if it turns out that the parties to the mind/brain dispute are addressing subtly different questions, these might both be substantive questions to which their respective metaphysical views provide substantive answers. One reason it is tempting to reach deflationary conclusions from the charge of mere verbalness is that we fail to distinguish it from the claim that a sentence under dispute is, in a certain sense, indisputable. Another reason is that we fail to distinguish mere verbalness from a certain sort of indeterminacy. While indisputability and indeterminacy plausibly capture forms of nonsubstantiveness, I argue that mere verbalness is insufficient to establish either indisputability or indeterminacy. (shrink)

It is argued in this study that (i) progress in the philosophy of mathematical practice requires a general positive account of informal proof; (ii) the best candidate is to think of informal proofs as arguments that depend on their matter as well as their logical form; (iii) articulating the dependency of informal inferences on their content requires a redefinition of logic as the general study of inferential actions; (iv) it is a decisive advantage of this conception of logic that it (...) accommodates the many mathematical proofs that include actions on objects other than propositions; (v) this conception of logic permits the articulation of project-sized tasks for the philosophy of mathematical practice, thereby supplying a partial characterisation of normal research in the field. (shrink)

This book argues that contemporary liberal democracy is reaching a crisis. Brendan Sweetman contends that this crisis arises from a contentious pluralism involving the rise of incommensurable worldviews that emerge out of the absolutizing of freedom over time in a democratic setting. This clash of worldviews is further complicated by a loss of confidence in reason and by the practical failure of public discourse. A contributory factor is the growing worldview of secularism which needs to be distinguished from both (...) the process of secularization and the concept of the secular state. After describing the crisis, and exploring these themes, and also rejecting proposed solutions from recent liberal political theory, Sweetman develops an approach to pluralist disagreement which requires a re-envisioning of the relationship between religion, secularism and politics, and which allows a limited place for all worldviews in the state, including religious worldviews. Engaging with the work of Philip Kitcher, Robert Audi, John Rawls, A.C. Grayling, Martin Luther King, Cécile Laborde, John Stuart Mill, John Locke, and Plato, Sweetman's approach is a formidable innovation in the quest to maintain a free and fair society. (shrink)

According to current hierarchies of evidence for EBM, evidence of correlation is always more important than evidence of mechanisms when evaluating and establishing causal claims. We argue that evidence of mechanisms needs to be treated alongside evidence of correlation. This is for three reasons. First, correlation is always a fallible indicator of causation, subject in particular to the problem of confounding; evidence of mechanisms can in some cases be more important than evidence of correlation when assessing a causal claim. Second, (...) evidence of mechanisms is often required in order to obtain evidence of correlation. Third, evidence of mechanisms is often required in order to generalise and apply causal claims. While the EBM movement has been enormously successful in making explicit and critically examining one aspect of our evidential practice, i.e., evidence of correlation, we wish to extend this line of work to make explicit and critically examine a second aspect of our evidential practices: evidence of mechanisms. (shrink)

This is a brief response to Thomas Hofweber's "Extraction, Displacement and Focus: A Reply to Balcerak Jackson" (Linguistics and Philosophy 37.3 (2014)), which was a reply to my "Defusing Easy Arguments for Numbers" (Linguistics and Philosophy 36.6 (2013)).

Intuitively, (1)-(3) seem to express genuine claims (true or false) about what the world is like, attempts to correctly describe parts of extra-linguistic reality. By contrast, it is tempting to regard (4)-(6) as merely reflecting decisions (or conventions, or dispositions, or rules) concerning the terms in which that extra-linguistic reality is described, decisions about which things to label with 'vixen', 'bachelor' or 'cup'.

Notice that each of (1)–(4) is an instance of a more general pattern. For example, we could replace ‘black’ in (1) with any of a wide range of other adjectives such as ‘furry’ or ‘hungry’ or ‘three-legged’, without rendering the entailment invalid or any less obvious. Similarly, there are a number of verbs that occur in entailments parallel to (3): ‘Moe boiled the water; so the water boiled’; ‘Bart blew up the school; so the school blew up’; ‘Homer sank the (...) boat; so the boat sank’ and so on. (shrink)

Daly, Brendan I am from Christchurch Diocese, a suffragan diocese of Wellington Archdiocese, a metropolitan see. During the past forty years, one diocesan bishop has resigned and was replaced by his coadjutor. This former coadjutor died soon afterwards. The next bishop resigned and was simultaneously replaced by the appointment of his auxiliary. The next two bishops died and created vacant sees. Usually there are significant time gaps between vacant sees, resulting in each vacancy being a new experience for the (...) key people involved. (shrink)

Daly, Brendan About a month before my ordination as a priest on 7 May 1977, my diocesan bishop asked me to come and see him at his office. He said after my ordination I was going to be appointed to Mairehau parish as an assistant priest. Two weeks later I was making my pre-ordination retreat and the bishop arrived to see me. He was embarrassed and said 'We have a problem. One parish priest won't take the assistant priest that (...) I want to give him, and another assistant priest won't go where he is appointed, so the end result is that you are now going to Addington parish. Is that okay?' I replied 'Yes.' Both parishes were in Christchurch city, and I did not know either parish priest personally, so it really did not matter at all. However, two weeks later at my ordination ceremony, it came time for the promise of obedience. I knelt down before the bishop who asked me did 'I promise him and his successors obedience and respect.' At the same time as he said this I was conscious of the thought going through my mind, 'what does it all mean anyway?'. (shrink)

In the context of transgender health, most people are not comfortable with allowing a twelve‐year‐old child with gender dysphoria to elect to undergo gender reassignment surgery. The likelihood is too high that the child would be unable to fully comprehend the scope of a decision that carries significant, permanent consequences, particularly because the decision to surgically change gender is based upon a conception of gender that can fluctuate during adolescent years. Conversely, however, most people would not contend that this fluidity (...) is reason to wholly deny certain medical care such as hormonal treatments to transgender youth, a demographic with extremely high rates of violent behavior, self‐harm, and suicide. This paper will explore ethical considerations to this emerging debate of what therapeutic options should be offered to transgender children and adolescents.Pediatric endocrinologists have been treating gender dysphoric adolescents with puberty‐suppressing drugs and, to a lesser extent, with cross‐sex hormone therapies for more than twenty years. Clinicians and thought leaders have mentioned ethical components of this emerging practice in the few cohort studies and clinical review articles about the subject. However, ethics have generally been a secondary consideration in the medical academic literature. In this paper, I will provide a brief overview of the practice, summarize the current research on hormone treatment for transgender minors, and provide an ethical analysis of the practice. (shrink)

Several times, when faced with a difficult passage of scripture in Sermones ad populum, Augustine implores his audience, “knock and it shall be opened” (Matt. 7:7c; par. Luke 11:9c). Augustine uses this phrase to stress humility and the human need for God’s activity when interpreting scripture. Studying the archeological record of domestic architecture of locked doors in Roman North Africa elucidates Augustine’s message. Knowledge of the material culture shows that Augustine calls upon Christians to “knock” upon scripture as if it (...) were a door, locked and barred in such a way that it could only be opened from inside. Thus, a reader of scripture is like a petitioner calling from outside a locked door, needing God to open its meaning. Augustine’s use of “knocking” contrasts with the metaphor of “keys” to scripture, which was favored by Tyconius and other early Christian writers. In De doctrina Christiana, Augustine expresses concern that “keys” could lead a person into overconfidence, expecting to unlock obscure passages of the Bible by his or her own power. Augustine’s frequent use of Matt. 7:7c is a call for exegetes to approach scripture with humility. All members of the totus Christus, great and small, must humbly knock. The image of “knocking” provides a versatile theological message: human effort is important, but the meaning of the Bible is ultimately unlocked by God’s activity. (shrink)

Frequency effects are pervasive in studies of language, with higher frequency words being recognized faster than lower frequency words. However, the exact nature of frequency effects has recently been questioned, with some studies finding that contextual information provides a better fit to lexical decision and naming data than word frequency ( Adelman et al., 2006 ). Recent work has cemented the importance of these results by demonstrating that a measure of the semantic diversity of the contexts that a word occurs (...) in provides a powerful measure to account for variability in word recognition latency ( Johns et al., 2012, 2015 ; Jones et al., 2012 ). The goal of the current study is to extend this measure to examine bilingualism and aging, where multiple theories use frequency of occurrence of linguistic constructs as central to accounting for empirical results ( Gollan et al., 2008 ; Ramscar et al., 2014 ). A lexical decision experiment was conducted with four groups of subjects: younger and older monolinguals and bilinguals. Consistent with past results, a semantic diversity variable accounted for the greatest amount of variance in the latency data. In addition, the pattern of fits of semantic diversity across multiple corpora suggests that bilinguals and older adults are more sensitive to semantic diversity information than younger monolinguals. (shrink)