Paradoxes in Fair Computer-Aided Decision Making

Computer-aided decision making--where a human decision-maker is aided by a computational classifier in making a decision--is becoming increasingly prevalent. For instance, judges in at least nine states make use of algorithmic tools meant to determine "recidivism risk scores" for criminal defendants in sentencing, parole, or bail decisions. A subject of much recent debate is whether such algorithmic tools are "fair" in the sense that they do not discriminate against certain groups (e.g., races) of people. Our main result shows that for "non-trivial" computer-aided decision making, either the classifier must be discriminatory, or a rational decision-maker using the output of the classifier is forced to be discriminatory. We further provide a complete characterization of situations where fair computer-aided decision making is possible

An fMRI investigation of the effects of attempted naming on word retrieval in aphasia

In healthy controls, picture naming performance can be facilitated by a single prior exposure to the same picture ("priming"). This priming phenomenon is utilized in the treatment of aphasia, which often includes repeated picture naming as part of a therapeutic task. The current study sought to determine whether single and/or multiple exposures facilitate subsequent naming in aphasia and whether such facilitatory effects act through normal priming mechanisms. A functional magnetic resonance imaging paradigm was employed to explore the beneficial effects of attempted naming in two individuals with aphasia and a control group. The timing and number of prior exposures was manipulated, with investigation of both short-term effects (single prior exposure over a period of minutes) and long-term effects (multiple presentations over a period of days). Following attempted naming, both short-term and long-term facilitated items showed improvement for controls, while only the long-term condition showed benefits at a behavioral level for the participants with aphasia. At a neural level, effects of long-term facilitation were noted in the left precuneus for one participant with aphasia, a result also identified for the equivalent contrast in controls. It appears that multiple attempts are required to improve naming performance in the presence of anomia and that for some individuals with aphasia the source of facilitation may be similar to unimpaired mechanisms engaged outside the language network

Chute, William D. and Hazel Angwin, collection

https://digitalcommons.pittstate.edu/fa/1434/thumbnail.jp

William D. and Hazel Angwin Chute Letters, 1946-1948

Telegram from William to Hazel Chute, May 27, 1946https://digitalcommons.pittstate.edu/chuteletters/1000/thumbnail.jp

Agency theory and performance appraisal: how bad theory damages learning and contributes to bad management practice

Performance appraisal interviews remain central to how employees are scrutinised, rewarded and sometimes penalised by managers. But they are also often castigated as ineffective, or even harmful, to both individuals and organisations. Exploring this paradox, we highlight the influence of agency theory on the (mal)practice of performance appraisal. The performative nature of human resource management increasingly reflects an economic approach within which its practices are aligned with agency theory. Such theory assumes that actors are motivated mainly or only by economic self-interest. Close surveillance is required to eliminate the risk of shirking and other deviant behaviours. It is a pessimistic mind-set about people that undermines the supportive, co-operative and developmental rhetoric with which appraisal interviews are usually accompanied. Consequently, managers often practice appraisal interviews while holding onto two contradictory mind-sets, a state of Orwellian Doublethink that damages individual learning and organisational performance. We encourage researchers to adopt a more radical critique of appraisal practices that foregrounds issues of power, control and conflicted interests between actors beyond the analyses offered to date

Problematizing Strategic Alliance Research: Challenges, Issues and Paradoxes in the New Era

Strategic alliances have attracted substantial attention from industry and academia over the past three decades. However, due to rapid technological evolution, saturated marketplaces, globalisation of businesses on the one hand and de-globalisation of the market on the other (as marked by Brexit and the trade war between US and China, COVID-19 pandemic and the Ukraine war), the strategic environment of businesses is changing quickly. Fundamental and rapid changes in the wider environment necessitate the review of theoretical and practical insights of earlier and emerging studies – to examine the new challenges, issues and paradoxes of strategic alliances. This special issue attempts to provide a forum to allow researchers to question the assumptions underlying existing theory a little further beyond just “gap-spotting” or “gap-filling”. This special issue includes four very interesting literature review pieces, which venture deeper into the phenomenon, and explore the opportunities, issues and paradoxes of strategic alliances while adopting alternative theoretical perspectives, methodological approaches and interpretations to address issues of managing strategic alliances and maximising returns from them in the new strategic context

Autonomy as a Strategic Dial: A Dynamic Framework for Managing Acquired Subsidiaries

Managing acquired subsidiaries can be daunting. Parent and affiliate executives strive to co-create value, but fixed mindsets around subsidiary autonomy can result in diverging interests and outcomes. Through a longitudinal study of Audi's post-acquisition integration of supercar manufacturer Lamborghini, this article provides guidance on how to manage the level of acquired subsidiary autonomy as a strategic dial that can be dynamically adjusted over time for mutual benefit. This dynamic approach to autonomy rests on three specific managerial levers-appraisal respect, organizational identity, and resource orchestration. These can enable the renewal of competitive capabilities and sustain post-acquisition success

Patient preference for second- and third-line therapies in type 2 diabetes:a prespecified secondary endpoint of the TriMaster study

Patient preference is very important for medication selection in chronic medical conditions, like type 2 diabetes, where there are many different drugs available. Patient preference balances potential efficacy with potential side effects. As both aspects of drug response can vary markedly between individuals, this decision could be informed by the patient personally experiencing the alternative medications, as occurs in a crossover trial. In the TriMaster (NCT02653209, ISRCTN12039221), randomized double-blind, three-way crossover trial patients received three different second- or third-line once-daily type 2 diabetes glucose-lowering drugs (pioglitazone 30 mg, sitagliptin 100 mg and canagliflozin 100 mg). As part of a prespecified secondary endpoint, we examined patients’ drug preference after they had tried all three drugs. In total, 448 participants were treated with all three drugs which overall showed similar glycemic control (HbA1c on pioglitazone 59.5 sitagliptin 59.9, canagliflozin 60.5 mmol mol−1, P = 0.19). In total, 115 patients (25%) preferred pioglitazone, 158 patients (35%) sitagliptin and 175 patients (38%) canagliflozin. The drug preferred by individual patients was associated with a lower HbA1c (mean: 4.6; 95% CI: 3.9, 5.3) mmol mol−1 lower versus nonpreferred) and fewer side effects (mean: 0.50; 95% CI: 0.35, 0.64) fewer side effects versus nonpreferred). Allocating therapy based on the individually preferred drugs, rather than allocating all patients the overall most preferred drug (canagliflozin), would result in more patients achieving the lowest HbA1c for them (70% versus 30%) and the fewest side effects (67% versus 50%). When precision approaches do not predict a clear optimal therapy for an individual, allowing patients to try potential suitable medications before they choose long-term therapy could be a practical alternative to optimizing treatment for type 2 diabetes

Does merger & acquisition (M&A) strategy matter? A contingency perspective

This paper takes a contingency approach to investigate whether there are market performance variations for different types of M&A. Eight different types of M&A are identified in a typology based upon the conjunction of three contextual dimensions: external environmental, acquiring firm level strategy and CEO motivation. Drawing upon a sample of 1,926 domestic UK deals we evaluate the typology to determine whether the financial markets distinguish between different types of M&A. Results indicate significant market and risk-adjusted performance differences by M&A type. These confirm that a contingency approach to M&A performance has merit. We suggest that the proposed integrated typology, that recognizes the importance of multiple aspects of strategic fit to M&A performance, addresses the paradox that M&A practitioners continue to pursue deals despite widespread acceptance that they result in high failure rates

Dopamine and semantic activation: An investigation of masked direct and indirect priming

To investigate the effects of dopamine on the dynamics of semantic activation, 39 healthy volunteers were randomly assigned to ingest either a placebo (n = 24) or a levodopa (it = 16) capsule. Participants then performed a lexical decision task that implemented a masked priming paradigm. Direct and indirect semantic priming was measured across stimulus onset asynchronies (SOAs) of 250, 500 and 1200 ms. The results revealed significant direct and indirect semantic priming effects for the placebo group at SOAs of 250 ms and 500 ms, but no significant direct or indirect priming effects at the 1200 ms SOA. In contrast, the levodopa group showed significant direct and indirect semantic priming effects at the 250 ms SOA, while no significant direct or indirect priming effects were evident at the SOAs of 500 ins or 1200 ms. These results suggest that dopamine has a role in modulating both automatic and attentional aspects of semantic activation according to a specific time course. The implications of these results for current theories of dopaminergic modulation of semantic activation are discussed