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This article questions the validity of regression models when high correlations exist between independent variables and presents the application of VAR as an alternative technique through the comparison of two groups of selected stocks that represent components of Dow Jones and S&P 500 indices, respectively. The results indicate that panel regressions face serious specification problems, while the impulse response function underlines that the shock to the volume innovation has a mostly positive impact on the volatility in both S&P and Dow Jones sample, but the tendency cannot be easily accounted for. The positive impact of volatility shocks on the inter market depth is rather unexpected, but it may be associated with an increase in volume that does not enormously enhance the spread up to the point where it will be too costly for market‐makers to trade, and accordingly, quickly narrows the spread to absorb new liquidity influx in the market. In the Granger causality tests Dow Jones stocks with comparatively larger average volume depth values and price levels provide slightly stronger relations between analyzed variables compared to the stocks included in the S&P sample.

The purpose of this paper is to analyse the accounting research project concerned with accounting narrative obfuscation, focusing on the translation of the concept of readability from educational psychology via an earlier literature concerned with the readability of accounting narratives per se.

This paper uses actor-network theory and examines, in particular, the need for a network to accommodate the interests of its actors and the consequent risk of failure.

The analysis shows that the project is failing because the network seeking to support it is failing, and failing because of its inability to adapt sufficiently to accommodate the interests of its constituents. This failure is contrasted with the earlier concern with readability per se, which did see a successful reconfiguration of actors’ interests.

The puzzle of the maladjustment of the network concerned with obfuscation is examined and it is suggested that it is a consequence of interests prevailing in the wider academic research network within which the relevant human actors are embedded.

The reasons for the failure of the project are bound up in the wider circumstances of the contemporary accounting research community and may affect scholars’ capacity to pursue knowledge effectively.

This paper contributes to a modest stream of actor–network analysis directed at accounting research itself.

There is no general theory of public enterprise, and the miscellany of separate theorizations on the subject has created a conceptual quagmire. Examines the rather confusing state of the research on public enterprise performance and behaviour. Contrary to conventional wisdom, it seems that in certain circumstances (as in the case of Singapore) public enterprise can be quite efficient, as well as an effective form of national competition.

To suggest that a theory of classification for information retrieval (IR), asked for by Spärck Jones in a 1970 paper, presupposes a full implementation of a pragmatic understanding. Part of the Journal of Documentation celebration, “60 years of the best in information research”.

Literature‐based conceptual analysis, taking Spärck Jones as its starting‐point. Analysis involves distinctions between “positivism” and “pragmatism” and “classical” versus Kuhnian understandings of concepts.

Classification, both manual and automatic, for retrieval benefits from drawing upon a combination of qualitative and quantitative techniques, a consideration of theories of meaning, and the adding of top‐down approaches to IR in which divisions of labour, domains, traditions, genres, document architectures etc. are included as analytical elements and in which specific IR algorithms are based on the examination of specific literatures. Introduces an example illustrating the consequences of a full implementation of a pragmatist understanding when handling homonyms.

Outlines how to classify from a pragmatic‐philosophical point of view.

Provides, emphasizing a pragmatic understanding, insights of importance to classification for retrieval, both manual and automatic.

This paper aims to investigate the financial uncertainty vary according to different financial assets type: conventional and Islamic.

Common factors are related to risk or known information. For this, the authors use general dynamic factor model to extract common variation between both types of indexes. Then they calculate stochastic volatility for each idiosyncratic component. They also carry out the study on three different family indexes respectively, Dow Jones, S&P and MSCI indexes, for the period going from January 1, 2008 to June 30, 2018. Through a comparison analysis with uncertainty index designed for conventional assets, the authors examine the similarity between the two indexes via mean, median and variance tests. They decrypt the interrelation between them by using OLS linear regression, vector autoregressive model.

The findings show that Islamic assets uncertainty is different from conventional uncertainty level. This difference can be due to the Shariah screening and the prohibition of gharar. The main findings suggest that Islamic financial uncertainty is lower than conventional one. The OLS results prove that conventional financial uncertainties have no impact on their Islamic counterparts. In addition, Islamic financial uncertainty appears to have no significant influence on conventional one exception for Dow Jones pair. Overall, the findings support the decoupling hypothesis in term of uncertainty only for SP and MSCI indexes.

Risk averse investors can find their claim in Shariah-compliant assets, as it offers a low level of financial uncertainty. A portfolio manager may benefit from the long run non-association in uncertainty between Islamic and conventional assets especially in time of crisis.

In this work, the authors measured financial uncertainty differently and take into account the specific features of each index type to improve the results quality.

Genetic and environmental factors are associated with psychosis risk, but the latter present more tangible markers for prevention. We conducted a theoretical exercise to estimate the proportion of psychotic illnesses that could be prevented if we could identify and remove all factors that lead to increased incidence associated with ethnic minority status and urbanicity. Measures of impact by population density and ethnicity were estimated from incidence rate ratios [IRR] obtained from two methodologically‐similar first episode psychosis studies in four UK centres. Multilevel Poisson regression was used to estimate IRR, controlling for confounders. Population attributable risk fractions [PAR] were estimated for our study population and the population of England. We considered three outcomes; all clinically relevant ICD‐10 psychotic illnesses [F10‐39], non‐affective psychoses [F20‐29] and affective psychoses [F30‐39]. One thousand and twenty‐nine subjects, aged 18‐64, were identified over 2.4 million person‐years. Up to 22% of all psychoses in England (46.9% within our study areas) could be prevented if exposures associated with increased incidence in ethnic minority populations could be removed; this is equivalent to 66.9% within ethnic minority groups themselves. For non‐affective psychoses only, PAR for population density was large and significant (27.5%); joint PAR with ethnicity was 61.7%. Effect sizes for common socio‐environmental risk indicators for psychosis are large; inequalities were marked. This analysis demonstrates potential importance in another light: we need to move beyond current epidemiological approaches to elucidate exact socio‐environmental factors that underpin urbanicity and ethnic minority status as markers of increased risk by incorporating gene‐environment interactions that adopt a multi disciplinary perspective.

This issue is a selected bibliography covering the subject of leadership.

The Chief Financial Officers Act of 1990 (and the subsequent Government Management Reform Act of 1994) mandated federal agencies to prepare corporate-style annual financial statements and subject them to independent audit. Over a decade later, it is reasonable to ask what the consequences of CFO Act financial statements have been. Accrual accounting produces auditable financial statements that establish accountability, contribute to the credibility of financial information, and identify long-term financial issues; but financial statements are not linked to the processes for resource-allocation decisions, nor do they produce information needed by managers. Some of these shortcomings are explained by contextual and sectoral differences.

The purpose of this paper is to trace the changes in accounting practice in UK hospitals, focussing on costing, funding and budgetary control, and to place more recent accounting changes in their historic context.

The paper is largely chronological and draws from previous research by the author and other secondary sources, both of which are supplemented by reference to government publications, accounting practitioner journals and public records.

The paper argues that contrary to many implicit assumptions in academic accounting studies, our accounting ancestors promoted, and sometimes used, accounting data in pursuit of similar objectives to those advocated in the twenty‐first century. But, although cost information “evolved”, within its historical context, the process of establishing standard costs was slow and sometimes controversial, and the use of such information for funding hospital activity was avoided. In addition, the history of accounting reform in UK hospitals is one littered with disappointing results.

The paper provides an historical context to more recent accounting reforms in UK hospitals and suggests that the long history of “problems” documented in the paper may provide some cautionary counsel to contemporary accounting reformers.

The purpose of this paper is to highlight theoretical and clinical similarities between therapeutic communities (TCs) and group analysis (GA).

Literature review shows comparison of TC and group-analytic concepts with illustrative case material.

Findings reveal many similarities between TCs and GA, but also significant divergences, particularly in practice.

This paper provides theoretical basis for TC practice, and highlights the need for greater theorising of TC practice.

This paper highlights the importance of group-based treatment approaches in mental health.

This is the first paper to review the relevant literature and compare theory and practice in TCs and GA, highlighting their common roots in the Northfields Experiments in the Second World War.