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Ubiquitous web applications (UWA) are a new type of web applications which are accessed in various contexts, i.e. through different devices, by users with various interests, at anytime from anyplace around the globe. For such full‐fledged, complex software systems, a methodologically sound engineering approach in terms of model‐driven engineering (MDE) is crucial. Several modeling approaches have already been proposed that capture the ubiquitous nature of web applications, each of them having different origins, pursuing different goals and providing a pantheon of concepts. This paper aims to give an in‐depth comparison of seven modeling approaches supporting the development of UWAs.

This methodology is conducted by applying a detailed set of evaluation criteria and by demonstrating its applicability on basis of an exemplary tourism web application. In particular, five commonly found ubiquitous scenarios are investigated, thus providing initial insight into the modeling concepts of each approach as well as to facilitate their comparability.

The results gained indicate that many modeling approaches lack a proper MDE foundation in terms of meta‐models and tool support. The proposed modeling mechanisms for ubiquity are often limited, since they neither cover all relevant context factors in an explicit, self‐contained, and extensible way, nor allow for a wide spectrum of extensible adaptation operations. The provided modeling concepts frequently do not allow dealing with all different parts of a web application in terms of its content, hypertext, and presentation levels as well as their structural and behavioral features. Finally, current modeling approaches do not reflect the crosscutting nature of ubiquity but rather intermingle context and adaptation issues with the core parts of a web application, thus hampering maintainability and extensibility.

Different from other surveys in the area of modeling web applications, this paper specifically considers modeling concepts for their ubiquitous nature, together with an investigation of available support for MDD in a comprehensive way, using a well‐defined as well as fine‐grained catalogue of more than 30 evaluation criteria.

The relationship between risk and return has been widely analysed in the scope of listed companies. However the present literature leaves uncovered an important study area with regards to privately held firms. In order to cover this gap, this study analyses the risk-return trade-off in the context of private enterprises. Furthermore, the authors incorporate the contingent effect of being a family firm on the abovementioned relationship.

Using information from the SABI (Sistema de Análisis de Balances Ibéricos) database, a sample of 2,297 private manufacturing firms were analysed for the period of 2009–2016. So as to ascertain the proposed hypotheses, dynamic panel data methodology was applied. Specifically, the authors estimated the two-step general method of moments (GMM).

The obtained findings reveal that, according to prospect theory arguments, privately held firms adopt a conservative attitude toward risk when results are higher than a target level, while becoming risk seeking when results are lower than a target level. Moreover, the fact of being a family firm softens the risk-return relationship both when performance is above the target level and also when firms find themselves in the lowest performing case.

This article is, to the best of the authors' knowledge, one of the first studies dealing with the risk-return relationship in a privately held firm context. Moreover, the inclusion of being a family firm as a contingent factor in the abovementioned link is a complete novelty.

La relación riesgo-rentabilidad ha sido ampliamente analizada en el ámbito de las empresas cotizadas. Sin embargo, la literatura existente deja al descubierto una importante área de estudio en relación con las empresas no cotizadas. Para cubrir esta brecha, el presente estudio analiza el binomio riesgo-rentabilidad en el contexto de empresas privadas. Adicionalmente, incorporamos el efecto contingente de ser una empresa familiar sobre esta relación.

Utilizando información de la base de datos SABI (Sistema de Análisis de Balances Ibéricos) se analizó una muestra de 2.297 empresas manufactureras privadas para el período 2009–2016. Para comprobar las hipótesis propuestas se aplicó la metodología de datos de panel, específicamente, utilizamos el Método de los Momentos Generalizado (GMM).

Los resultados muestran que, de acuerdo con la Teoría Prospectiva, las empresas no cotizadas presentan una mayor aversión al riesgo cuando su nivel de rentabilidad es superior al valor de referencia establecido, mientras que presentan una mayor propensión al riesgo cuando su rentabilidad es inferior al valor de referencia. Además, el hecho de ser una empresa familiar suaviza la relación riesgo-rentabilidad en ambos escenarios.

Este es uno de los primeros estudios en abordar la relación riesgo-rentabilidad en el contexto de empresas no cotizadas. Además, la inclusión de ser una empresa familiar como factor contingente es completamente novedosa.

In this chapter the aim is to analyse the way the relationship between health and food has been changing at the same time as Spanish society itself. From the beginnings of the consumer society until the present day the modernization process has made its imprint on the guidelines public bodies have issued to the public on caring for their health and diet. Beginning in the 1960s with a welfare idea of a healthy diet, very typical of the decade, and meant for a population with nutritional problems, today we have guidelines for an overfed population. The social trends dominant in each historical moment are shown throughout this transformation process and the dietary recommendations have been part of the social change. However, the perceptions of the administration itself on what constitutes a healthy diet have also made their mark on the criteria. The modernizing nature of the paternalistic administration of the 1960s can be easily seen in contrast with the public bodies of the 1980s competing with the messages from the food and agricultural businesses. As the 20th century drew to a close, dietary advice was in keeping with a background dominated by considerations on the nature of social change and in which both public bodies and citizens trusted in the truths of science as a reference point for correct action. At the beginning of the 21st century, reflexivity and questioning of scientific power appear and also an increase in public preoccupation with food risks. Each stage is analysed relating historical background and dietary recommendations.

Natural disasters and other crises present methodological challenges to organizational researchers. While these challenges are well canvassed in the literature, less attention has been paid to understanding how distinct crisis events may present, not only unique challenges, but also important opportunities for research. In this chapter, we draw on our collective experience of conducting post-earthquake research and compare this with the COVID-19 pandemic context in order to identify and discuss the inherent vulnerabilities associated with disaster studies and the subsequent methodological challenges and opportunities that researchers might encounter. Adopting a critical perspective, the chapter grapples with some of the more contentious issues associated with research in a disaster and crisis context including aspects of stakeholder engagement, ethics, reciprocity, inequality, and vulnerability.

The success enjoyed by some of the alternative agrifood movements has led to a dual process: on the one hand, their mainstreaming and cooptation; while on the other hand, their institutionalization into public regulation and law. This dual process is the result of the influence these movements have had on consumers and politicians and serves to demonstrate the constant exchange between the spheres of public and private regulation, a feature that characterizes the neoliberal model of governance. In turn, this has led to the appearance of new alternative initiatives which may converge with or diverge from founding initiatives when these are the result of divisions within a movement. The question that arises here is obvious: despite these evident achievements, by working within the market and using the tools of neoliberal regulation, have these movements managed to generate the social change they intended from the outset? This chapter will attempt to answer the question by offering a reflection on two of the most widely discussed aspects of this strategy: first, the private and/or public space where these movements develop and the citizen-consumer duality of the actors to whom they appeal; and second, their ability to generate standards, norms, and certification systems, that is, their ability to establish the rules of the game.

The purpose of this paper is to identify segments of Mexican consumers with regard to their motives for food choices.

A questionnaire based on the Food Choice Questionnaire was applied to 1,202 consumers. A factor analysis and a cluster analysis were performed on the data.

Ten factors were identified: care for weight and health, social sensitivity, practicality, economic aspects, non-industrialized, hedonism, traditionality A, familiarity, traditionality B, and no added sugar. Resulting clusters were named as: traditional, healthy, conscious, and careless. Statistically significant differences (p<0.05) were found due to gender, age, marital status, and educational level, but not for body mass index. There are signs of different consumers, but it seems that Mexican consumers in general express low sensitivity to issues of health and nutrition, even more so towards animal welfare and products that are friendly to the environment.

The large diversity of motivations and behaviours in food consumption in Mexico are not all addressed in this study. However, this work opens a new area of research in Mexico so that in the near future studies on the diversity of Mexican consumers are undertaken, looking at the transformation of their food preferences.

In Europe, governments have addressed the new forms of consumption taking advantage of opportunities that benefit local producers, through the generation of added value as “Protected Designations of Origin (DOP)”, geographical indications, collective brands, ecological produce, local products of the land, among others. These proposals are promoted as a path to follow in Latin America, assuming that Latin American consumers have the same characteristics or interests as in those developed countries. But, not knowing consumers motives of preference represents a problem in the processes of valorization of food products.

Economic development, demographic, and sociocultural changes in Latin America have promoted phenomena both in the polarization of livelihoods in their societies as well as changes of lifestyles in different social strata. Therefore, studies are needed on the effect of these changes not only in food consumption, but also on the symbolic elements when consumers choose their food.

In Mexico, the study of food consumption has followed diverse approaches, as a matter of policy, from an economic perspective, from anthropology, particularly focussed on indigenous cultures, from the nutrition and health field or emphasizing economic aspects. As in other developing countries, those works do not address the role of the consumer and their motivations, so that research that studies their motives in the choice of foods is needed.