How to Model a Negligible Probability Under the WTO Sanitary and Phytosanitary Agreement?

Since the 1997 EC – Hormones decision, World Trade Organization (WTO) Dispute Settlement Panels have wrestled with the question of what constitutes a negligible risk under the Sanitary and Phytosanitary Agreement. More recently, the 2010 WTO Australia – Apples Panel focused considerable attention on the appropriate quantitative model for a negligible probability in a risk assessment. The 2006 Australian Import Risk Analysis for Apples from New Zealand translated narrative probability statements into quantitative ranges. The uncertainty about a “negligible” probability was characterized as a uniform distribution with a minimum value of zero and a maximum value of 10^?6. The Australia – Apples Panel found that the use of this distribution would tend to overestimate the likelihood of “negligible” events and indicated that a triangular distribution with a most probable value of zero and a maximum value of 10^?6 would correct the bias. The Panel observed that the midpoint of the uniform distribution is 5 × 10^?7 but did not consider that the triangular distribution has an expected value of 3.3 × 10^?7. Therefore, if this triangular distribution is the appropriate correction, the magnitude of the bias found by the Panel appears modest. The Panel's detailed critique of the Australian risk assessment, and the conclusions of the WTO Appellate Body about the materiality of flaws found by the Panel, may have important implications for the standard of review for risk assessments under the WTO SPS Agreement.     

The Economic Efficiency of Sampling Size: The Case of Beef Trim Revisited

A recent paper by Ferrier and Buzby provides a framework for selecting the sample size when testing a lot of beef trim for Escherichia coli O157:H7 that equates the averted costs of recalls and health damages from contaminated meats sold to consumers with the increased costs of testing while allowing for uncertainty about the underlying prevalence of contamination. Ferrier and Buzby conclude that the optimal sample size is larger than the current sample size. However, Ferrier and Buzby's optimization model has a number of errors, and their simulations failed to consider available evidence about the likelihood of the scenarios explored under the model. After correctly modeling microbial prevalence as dependent on portion size and selecting model inputs based on available evidence, the model suggests that the optimal sample size is zero under most plausible scenarios. It does not follow, however, that sampling beef trim for E. coli O157:H7, or food safety sampling more generally, should be abandoned. Sampling is not generally cost effective as a direct consumer safety control measure due to the extremely large sample sizes required to provide a high degree of confidence of detecting very low acceptable defect levels. Food safety verification sampling creates economic incentives for food producing firms to develop, implement, and maintain effective control measures that limit the probability and degree of noncompliance with regulatory limits or private contract specifications.     

‘Value talk’ in social work research: reflection,rhetoric and reality

This paper begins with an exploration of values in relation to current approaches within social work research thereby revealing tensions between what might broadly be conceived as scientific rigour and relevance to practice. It goes on to examine the purpose of social work research emphasising the notion of the researcher as engaged in a critically reflective dialogic process. Four core values conceived as guiding principles in undertaking research are identified as the basis for further ‘value talk’ in the context of developing culturally sensitive approaches without relinquishing a common sense of purpose in developing knowledge of and for social work practice.     

Performativity and helping professions: social theory, power and practice

Drawing on Judith Butler's conception of 'performativity', we would argue that the notion has important implications for contemporary debates in international social welfare over agency, subjection and 'resistance'. Professional social workers embedded in discursive institutions function according to particular expectations around performativity. In addition, this organisational context is complex with multiple demands. In light of technologies of surveillance and control in contemporary social work, performativity offers a response to the pressing need to expand notions of worker opposition beyond traditional forms of organised dissent towards the production of subjective space.     

Status Discrepancy and the Radical Rejection of Nonviolence

Interviews with Negro members of the Congress of Racial Equality during 1961–1963 show that the commitment to nonviolence was both extensively and intensively weak. Cross tabulation of attitudes on nonviolence with attitudes toward war indicates no consistent pacifism, but a tendency for radicals to reject military service while accepting violence in the movement, and for moderates to accept military service while rejecting violence in the movement. Radicalism was associated with inconsistent status experiences: Northern upbringing and the combination of high occupational and educational status with low racial status. Exposure to radical ideas was also a strong factor. The connection between the verbal, ideological radicalism of the CORE activists and actual ghetto insurrections is complex. The predominantly middle class CORE members are unlikely to engage in such class-alien behavior, but they do produce an ideology which politicizes lower class Negro youths and legitimates spontaneous violence as a form of protest.     

Parents' searches for child care and the design of information services

This article reports selected findings from a study of the process by which urban parents search for child care. Analyses of interview data indicate that (a) parents used informal sources of information to a considerably greater extent than formal sources, (b) the general pattern was to begin the search with relatives and close friends and gradually move out to more peripheral ties, (c) there does not appear to be an effective informal system of neighbors or community persons who matched parents with child care providers, and (d) there was no single or several sources that were outstanding in effectiveness for a large proportion of parents. The article sets forth implications of these data for the design of child care information and referral services in urban settings.     

A Foucauldian analysis of old age and the power of social welfare

It is argued that the question of social welfare is a key, if often overlooked, component in the construction of power relations and identities in later life that can take its place next to debates on bioethics and consumer lifestyle. Foucault's (1977) claim, that identities are kept in place through the deployment of integrated systems of power and knowledge and a routine operation of surveillance and assessment, is critically examined in this context. Trends in social welfare in the United Kingdom are used as a case example that sheds light on wider contemporary issues associated with old age. Finally, implications for the creation of particular narratives about later life are discussed and grounded through Foucault's (1988) notion of "technologies of self."     

Reclaiming civil society: the future of global social work?

The topic of global social work has become a controversial one in the European Journal of Social Work, as the March 2004 edition acknowledges in an editorial statement. This statement was prompted by a pungent critique from Stephen Webb, in an earlier edition of the journal. Webb (2003), p. 191) dismissed the topic as being of marginal interest: ‘?… social work has at best a minimal role to play with any global social order, should such an order exist’, adding that ‘a global or transnational social work is little more than a vanity’. Lest the reader should still harbour doubts, Webb (2003), p. 196) added with powerful political import: ‘these writers on globalisation and social work posit what is tantamount to ethical welfare imperialism’. Strong words! We beg to differ and offer an alternative vision of the relationship between globalisation and social work that connects it to the vital democratic force of civil society.