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The purpose of this paper is to examine the interaction of enforcement and adjudication for general deterrence of drunk-driving. The authors present a triangular feedback model between three domains: police, courts and drunk-driving events. The authors’ deductive approach imposes no structural assumptions beyond the core of general deterrence theory.

Using a largely untapped data set for California’s 58 counties from 1990 to 2010, the authors estimate a series of heterogeneous panel Granger non-causality tests. This empirically based evidence is re-organized per the proposed triangular feedback model to objectively categorize local criminal justice systems as active, responsive or reactive (with respect to drunk-driving).

Our results suggest that state-level analyses obscure useful variations that empirical panel methods can now handle. The authors provide evidence that research based on empirically derived groupings, rather than inductively based preconceptions, is key to understanding enforcement and compliance. The authors provide a less confounded picture of the relationship between drunk-driving enforcement and adjudication.

Our study addresses one offense for a particular state in the USA. It is an exploratory analysis. This analytical and empirical approach is new.

Our approach imposes very few a priori assumptions and requires a minimum of data series to be executed. The method can be broadly applied to a range of topics and observational units.

The authors aim to expand identification of local systems’ effectiveness (or not) and mechanisms of for general deterrence of drunk-driving. The offense is one that can be committed easily and unintentionally; it does not presume anomie. The authors address general communities, not anomalies. Knowing how enforcement and compliance operate is essential to an array of behavioral externalities.

This is a new empirically based approach for analyzing social systems. It is a marriage of new macroeconomic time-series techniques with an old question, most often addressed by microeconomic research. This study uses an underutilized data source to construct a unique panel data set.

Biodiversity conservation tax incentives were inserted into the Income Tax Act 58 of 1962 in terms of the Revenue Laws Amendment Act 60 of 2008 and are now contained in section 37C. The objectives of this study were to quantify the maximum potential revenue loss, to National Treasury, as a result of these tax incentives granted to landowners in the Western Cape; to identify and discuss alternative policy instruments to encourage conservation; and to investigate the perceptions of landowners in the Western Cape on the tax and alternative incentives available for conservation. The study found that the maximum tax revenue foregone should amount to a tiny percentage of total estimated revenue income for the 2008/2009 fiscal year, while projected future losses could also be insignificant. Landowners prefer direct financial incentives and exemption from property taxes, and contend that direct assistance with conservation activities would also be beneficial. The use of municipal value in the valuation of land would promote objectiveness and consistency. Finally, only a third of the landowners indicated that tax incentives would encourage them to commit more land for conservation.

Workplace silence impedes productivity, job satisfaction and retention, key issues for the hospital workforce worldwide. It can have a negative effect on patient outcomes and safety and human resources in healthcare organisations. This study aims to examine factors that influence workplace silence among hospital doctors in Ireland.

A national, cross-sectional, online survey of hospital doctors in Ireland was conducted in October–November 2019; 1,070 hospital doctors responded. This paper focuses on responses to the question “If you had concerns about your working conditions, would you raise them?”. In total, 227 hospital doctor respondents (25%) stated that they would not raise concerns about their working conditions. Qualitative thematic analysis was carried out on free-text responses to explore why these doctors choose to opt for silence regarding their working conditions.

Reputational risk, lack of energy and time, a perceived inability to effect change and cultural norms all discourage doctors from raising concerns about working conditions. Apathy arose as change to working conditions was perceived as highly unlikely. In turn, this had scope to lead to neglect and exit. Voice was seen as risky for some respondents, who feared that complaining could damage their career prospects and workplace relationships.

This study highlights the systemic, cultural and practical issues that pressure hospital doctors in Ireland to opt for silence around working conditions. It adds to the literature on workplace silence and voice within the medical profession and provides a framework for comparative analysis of doctors' silence and voice in other settings.