Agricultural policy modelling under imperfect competition

This study evaluates the role of imperfect competition in determining the agri-food policies impact assessment outcomes. In most impact studies, the supply chain between agricultural production and final consumption is modelled in a perfectly competitive framework. However, there is a growing attention of stakeholders for the presence of imperfectly competitive markets, with the retail sector often being under investigation. This issue is empirically analysed with an application to the dairy industry. First, the degree of market power is estimated using a multi-output demand and price transmission equation system. Then, this model is used for policy simulation with the perfect competition outcome taken as a benchmark to evaluate the impact of imperfect competition. Results show a significant degree of market power in the dairy industry with implications on the projected policy scenarios. Moreover, the imperfect competition model alters the price transmission mechanisms, generating more flexible price trends.     

Contributions of ergonomics to the construction of bus drivers health and excellence in public transport and at work

This article is the product of research that analyzed the work of bus drivers of a public transportation company that is considered a benchmark reference in its field of operations, in which it strives to achieve operating excellence. Within this context, the authors sought to understand how such a company has managed to maintain a policy that is capable of reconciling quality public transport while also providing working conditions compatible with the professional development, comfort and health of its workers. Ergonomic work analysis and activity analysis were the guiding elements used in this study. Initial analyses indicate that the activity of drivers includes serving a population and providing mobility for it, which depends on driving the vehicle itself and on relationships with colleagues, users, pedestrians, drivers and others.     

Ergonomics at Volkswagen Brasil. Multidisciplinary work to equalize health, productivity and quality

Following the technological developments and presented to the multidisciplinary processes as automakers, Volkswagen Brazil, represented by its ergonomists, through this paper, shows the importance of ergonomic efficiency of management applied to various levels of life of a product, since its creation to its final implementation on production lines.The preventive work of ergonomists during the processes leading to production of a vehicle is accomplished through assessments on a simulated system called the Digital Factory. Since the initial stages to final product delivery there is a need for a multidisciplinary aligning the concepts of ergonomics, productivity and quality of product. Industrial Engineering, Process Engineering, ergonomists and workers are involved in the analysis made through the Workshop's showing the importance of discussion between the various users of the systems. The processes of series are also equipped with a set of certifications flow of job and planned audits on items that describe processes and applied ergonomics.     

Sequential procedures for poverty gap dominance

Poverty evaluations differ from welfare evaluations in one significant aspect, the existence of a threshold or reference point, the poverty line. We build up normative evaluation models in which comparisons are made taking distances from this reference point rather than from the origin to be ethically relevant, by focussing upon poverty gaps and not incomes. When poverty lines differ for different groups in a socially heterogeneous population, choosing poverty gaps instead of incomes as the relevant indicator brings in normatively appealing classes of poverty indices not previously accommodated, for which poverty comparisons are implemented through sequential poverty gap curves (or poverty gap distributions) dominance. These conditions are logically related to those suggested by Atkinson and Bourguignon (Arrow and the foundations of the theory of economic policy, Macmillan, London, 1987) and Bourguignon (J Econom 42:67–80, 1989) for welfare comparisons. However, the proportion of poor individuals in the society and their average poverty gap play a role in our comparisons, though they do not in the existing poverty dominance criteria for heterogeneous populations.     

An opera house for the “Paris of South America”: pathways to the institutionalization of high culture

Who has the power to institutionalize culture? How is it that cultural forms become legitimated and appropriated by certain groups? And what are the organizational forms that guarantee the continuity of the interlocks among classifications, etiquette, and resources in the long run? This article explores these questions by observing the struggle over the institutionalization of opera as high culture during the late nineteenth century and early twentieth century in Buenos Aires, a region of the world understudied by cultural sociologists. It contends that to answer these questions we need to observe the contested dynamics though which the process of institutionalization happens. It also shows how this contestation affects, in the long-term, the processes of evaluation and legitimation of the classification upheld, and the consequences it has in terms of audience stratification. In the Discussion section, I present a novel framework for the study of pathways to high culture institutionalization that highlights how the role of the state and competing stakeholders can introduce variable relationships among the elites, the arts, and social closure.     

Restabilizing attachment to cultural objects. Aesthetics,emotions and biography

The scholarship on aesthetics and materiality has studied how objects help shape identity, social action and subjectivity. Objects, as ‘equipment[s] for living’ (Luhmann 2000), become the ‘obligatory passage points humans have to contend with in order to pursue their projects (Latour 1991). They provide patterns to which bodies can unconsciously latch onto, or help human agents work towards particular states of being (DeNora 2000, 2003). Objects are central in the long term process of taste construction, as any attachment to an object is made out of a delicate equilibrium of mediators, bodies, situations and techniques (Hennion and his collaborators (Hennion and Fouquet 2001; Hennion and Gomart 1999). In all of these accounts objects are the end result of long‐term processes of stabilization, in which the actual material object (a musical piece, a sculpture, an art installation, a glass of wine, the oeuvre of Bach as we know it) is both a result and yet a key co‐producer of its own generation. Whereas the literature has been generous and detailed in exploring the processes of assembling and sustaining object‐centered attachments, it has not sufficiently engaged with what happens when the aesthetic elements of cultural artifacts that have produced emotional resonance are transformed: what do these artifacts morph into? What explains the transition (or not) of different cultural objects? And relatedly, what happens to the key aesthetic qualities that were so central to how the objects had been defined, and to those who have emotionally attached to them? To answer these questions, this article uses as exemplars two different cases of attachment, predicated on the distinctive features of a cultural object – the transcendence of opera and the authenticity of a soccer jersey – that have undergone transformations.     

Stochastic Measures of Network Resilience: Applications to Waterway Commodity Flows

Given the ubiquitous nature of infrastructure networks in today's society, there is a global need to understand, quantify, and plan for the resilience of these networks to disruptions. This work defines network resilience along dimensions of reliability, vulnerability, survivability, and recoverability, and quantifies network resilience as a function of component and network performance. The treatment of vulnerability and recoverability as random variables leads to stochastic measures of resilience, including time to total system restoration, time to full system service resilience, and time to a specific α% resilience. Ultimately, a means to optimize network resilience strategies is discussed, primarily through an adaption of the Copeland Score for nonparametric stochastic ranking. The measures of resilience and optimization techniques are applied to inland waterway networks, an important mode in the larger multimodal transportation network upon which we rely for the flow of commodities. We provide a case study analyzing and planning for the resilience of commodity flows along the Mississippi River Navigation System to illustrate the usefulness of the proposed metrics.     

Stages and modes of incorporation of exiles in Switzerland: The example of Chilean refugees

Many scholars perceive the incorporation of refugees and immigrants to a new society as a matter of time: the longer the length of residence, the more the refugees and immigrants perceive their stay in the host society as permanent. Other social scientists go even much further: they perceive adaptation not only as a linear process but also as an inevitable and desirable process which should lead to the disappearance of immigrants as an ethnic community and to their assimilation to a new society. In this paper we argue that incorporation to a new society is not necessarily a linear process depending exclusively upon length of residence. We also argue that assimilation is not necessarily the end result of this process. In our opinion, linear and assimilationist approaches neglect macro‐social context and, to a lesser extent, social stratification which are important variables influencing the incorporation process of migrants to a new society. The empirical study of Chilean refugees in Switzerland shows the relevance of these factors and also of the actor's own perception of the situation in the definition of different stages of exile.     

Over the Colombian Rainbow

This poststructural narrative research intends to contribute a better understanding of some lesbian, gay, bisexual, and transgendered (LGBT) people's meanings, interactions, and reflections through the analysis of Colombian government's master narratives and LGBT advocates’ counter-narratives. A better understanding between the Colombian government and LGBT activists is needed in order to build bridges that allow the parties to construct pathways to new stories that legitimize them and will support solutions to their conflicts. The author argues that LGBT counter-narratives are repairing the damaged identities of LGBT in Colombia, even though they have not become master narratives.