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The design of electrical machines includes the computation of several requirements and, in general, the improvement of one requirement implies in a degradation of another one: this is a typical multi‐objective scenario. The paper focuses on the multi‐optimization analysis of a special switched reluctance motor.

Two design requirements were analyzed: the average torque and the ripple torque. The electromagnetic field computation was performed by the finite element method and the torque was computed by the Coulomb's Virtual Work for several positions. This allows us to calculate the average torque and the ripple torque. Three different methods were used to obtain the Pareto set: a min‐max approach, the non‐dominated sorting genetic algorithm (NSGA) and the strength Pareto evolutionary algorithm (SPEA). In order to save the computation time, the objective functions (the average torque and the ripple torque) were replaced with surrogate functions. Kriging models were used as surrogate functions.

The evolutionary methods (NSGA and SPEA) have a similar performance. The min‐max has not the same performance. It could have the same performance only if some unconstrained optimization problems are solved before the multi‐objective optimization. The maximum relative deviation between the approximated function (Kriging model) and the same value calculated by the finite element method was equal to 0.8 percent for the average torque and 1.2 percent for the ripple torque. The ripple torque, considered as the difference between the maximum and the minimum values in the 0‐90° region, has reduced while its frequency has doubled. This last characteristic provides a better mechanical stability for the driven load because its inertia softens the ripple effects at the double the frequency. The optimized prototype presents higher torques in the region θ<0° and this allows the electronic drive to switch in a broader range rendering the motor operation more flexible.

The use of surrogate functions save the computation time with high accuracy. This is very important on the design of electrical machines, a typical multi‐objective scenario. Evolutionary methods seem to be well suited to solve this class of problem.

The objectives of this study were to (a) analyze the relationship between sociodemographic aspects and motivations in ecotourism and (b) identify the relationship between sociodemographic aspects and satisfaction and loyalty variables.

The research was carried out in the Arenal National Park and the Caño Negro National Wildlife Refuge in Costa Rica, an ecologically important ecotourism destination. The sample consisted of 310 surveys obtained in situ. For data analysis, factor analysis and the multiple regression method were used.

The results show that younger tourists tend to be more motivated by self-development, whereas older tourists and lower-income tourists are more motivated toward strengthening interpersonal relationships with family and friends. In contrast, tourists with lower education levels are highly motivated by novelty, feel more satisfied with the visit and are more willing to recommend and say positive things about the destination. Besides, repeat visitors are most likely to return.

The present study was limited by the timing in which it was carried out. Among the future lines of research, studies that address the relationship between sociodemographic variables in the different ecotourism segments should be conducted.

Regarding the practical implications, this study helps companies related to tourism to pay attention to the sociodemographic characteristics of tourists to design activities and services according to their motivations, satisfaction and loyalty. For younger tourists who are motivated by self-development, activities and services related to learning about nature can be planned to encourage their personal growth, new abilities and individual skills. Regarding elderly and lower-income tourists, who are motivated to be with family and friends, recreational activities to improve family and friendship relationships can be promoted.

These findings will serve to plan attractions and services in protected areas, benefiting the destinations and the communities sustainably.

One of the contributions of this study is to find a negative relationship between the level of education and other variables such as satisfaction, intentions to recommend and intentions to say positive things about the destination. This research also identified a negative relationship between age and the self-development motivational dimension, a positive relationship between age and being with family and friends dimension, a negative relationship between income and being with family and friends dimension and a negative relationship between the number of visits and the novelty dimension.

The main pedagogical objectives of the case are: illustrate how Latin American companies dedicated to the production and harvesting of commodities can be vertically integrated to gain a larger share of the value created throughout the production chain. Understand how futures and options contracts in commodities can be used to hedge price risk on long and short positions in the underlying products. Understand how option contracts add value by hedging risk in those contexts where the counterparty has optionality. Discuss the implications of Fair Trade for commodity traders and producers.

In the case, Hernan Arosamena, CFO of The Specialty Coffee Trading Co. (TSCT), faces the challenge of designing an effective strategy to hedge the price risk caused by the increasing demand of the so-called Fair Trade coffee. Hernan Arosamena decides to review how the company has typically managed the price risk in its business transactions using future contracts to then incorporate the additional elements that trading Fair Trade coffee may entail. The typical price risk hedging strategy involves the use of coffee future contracts in long and short positions to ensure that the company obtains the desired margin in its coffee trading negotiations. To hedge the exposure to the risk of fluctuations in the price of coffee when the company sells Fair Trade coffee requires the additional use of put options.

The case is appropriate for students enrolled in courses or specialization programs at both the undergraduate and graduate levels.

Teaching notes are available for educators only.

CSS 5: International Business.

Meat is a crucial source of protein and other nutrients for human health. However, excessive consumption of meat products is not advisable due to their elevated sodium and animal fat levels. Hence, there is a strong recommendation for reducing sodium and fat content in meat products. This study aims to delve into the current sodium, total and saturated fat content of meat products in the Brazilian market.

A total of 1,600 products underwent analysis.

The highest sodium concentrations were identified in jerked beef (5.48 g/100 g), charqui (5.21 g/100 g) and salted pork meat (2.58 g/100 g). In contrast, the highest total and saturated fat levels were observed in bacon (35.33 and 12.50 g/100 g), salami (26.00 and 9.25 g/100 g) and pork coppa (22.00 and 9.75 g/100 g). Most meat products were categorized as medium in terms of sodium (77.75%), total fat (52.93%) and saturated fat (48.25%). However, many meat products exhibited high total and saturated fat levels.

This study represents the first comprehensive examination of the sodium, total fat and saturated fat content listed on the labels of many meat products in Brazil.

This paper studies the relation between corporate tax evasion, job creation and optimal fiscal policy. Job creation depends on firms’ profits since firms open (“create”) new jobs when profits increase. In turn, firms’ profits depend on incentives (rewards) and disincentives (penalties) to comply with tax rules. Hence, any fiscal policy to combat tax evasion also has repercussions on job creation.

This paper is both theoretical and empirical. From a theoretical point of view, a modified and extended version of the search and matching model of the labor market is used. In this framework, moreover, the welfare function of workers and firms is closely related to the job creation condition. Empirically, a panel analysis of a system of two simultaneous equations that covers 54 countries (both developed and developing) and four years (2018–2021) is carried out.

The paper finds that anti-tax evasion policies should be related to job creation policies. Also, anti-tax evasion and job creation policies change according to the extent of tax evasion in the economy. Precisely, when tax evasion is widespread, a lower tax burden (tax cuts or provision of fiscal rewards) requires tighter tax audits, whereas, where most people comply with tax rules, a decrease in tax audits is possible.

The empirical analysis supports the model-generated theoretical relationships. Eventually, therefore, the optimal fiscal policy suggested by this work can counteract corporate tax evasion and, at the same time, reduce the firm’s tax burden, thus promoting job creation.

As far as we are aware, this is the first paper that considers the close and direct link between fiscal policy, corporate tax evasion and job creation.

The purpose of this article is to identify whether there is happiness in the consumption of brands and product categories and to clarify which provides more happiness: consuming the product itself or consuming the branded product.

The research was a survey with 528 Brazilian consumers. Data were analyzed and interpreted through content analysis and regressions: linear, quantile and logistic.

The results show that there is happiness in the consumption of brands and product categories, with culture being the category that most provides happiness; also confirming that individuals who consume branded products are happier than those who consume the product itself.

Studies confirm that there is happiness in consumption, but when we show that there is more happiness in the consumption of branded products than in not consuming the product itself, and when we identify which are the categories of products that bring the most happiness in an emerging country of Latin America, our article deepens and expands the previous literature.

We suggest that companies associate their brands with culture to balance profit with sustainable purpose. For this, we provide a framework as a tool for this association.

The topic of our article is relevant, timely and current, its originality lies in confirming that those who consume the branded product are happier and those who consume the product itself are less happy, and also by identifying which categories provide the most happiness.

El propósito de este artículo es identificar si hay felicidad en el consumo de marcas y categorías de productos y esclarecer cuál proporciona más felicidad: consumir el producto en sí o consumir el producto de marca.

La investigación fue una encuesta con 528 consumidores brasileños. Los datos fueron analizados e interpretados mediante análisis de contenido y regresiones: lineal, cuantil y logística.

Los resultados muestran que existe felicidad en el consumo de marcas y categorías de productos, siendo la cultura la categoría que más felicidad brinda; confirmando también que los individuos que consumen productos de marca son más felices que los que consumen el producto en sí.

Sugerimos que las empresas asocien sus marcas con la cultura para equilibrar las ganancias con un propósito sostenible. Para ello, proporcionamos un marco como herramienta para esta asociación.

Los estudios confirman que hay felicidad en el consumo, pero cuando demostramos que hay más felicidad en el consumo de productos de marca que en no consumir el producto en sí, y cuando identificamos cuáles son las categorías de productos que más felicidad aportan en un mundo emergente país de América Latina, nuestro artículo profundiza y amplía la literatura anterior.

El tema de nuestro artículo es relevante, oportuno y actual, su originalidad radica en constatar que quienes consumen el producto de marca son más felices y quienes consumen el producto en sí son menos felices, y también en identificar qué categorías aportan más felicidad.

The purpose of this paper is to evaluate perceived sensory differences of organic and conventional leafy green vegetables through three sensory tests – blind, informed and inverted and the willingness to buy (WTB) them, and associated factors of organic food consumption by these students.

The research had a cross-sectional design with university students. First, a questionnaire with 16 statements was presented to 233 consumers with a five-point Likert scale response. The assertions were categorized into five domains: trust in organic production; trust in conventional production; positive attitude to organic; affordable price; and perceived quality. Afterwards, a hedonic scaling was conducted with 150 consumers, 50 in each type of test with conventional and organic leafy green vegetables: lettuce (Lactuca sativa L.); kale (Brassica oleracea L.); common chicory (Cichorium intybus); and endive (Cichorium endivia). Visual aspect, taste, texture, bitterness and overall liking for all samples were evaluated on a nine-point hedonic scale.

In general, the participants did not perceive sensory differences during the blind test, but when the information about the vegetables was provided, higher scores were obtained by those products labelled as organic in the informed test and in the inverted test (conventional labelled as organic). This effect was higher for students with stronger attitudes towards organic food. These results indicated that the perceived differences between organic and conventional leafy green by university students tended to be attitudinal and, therefore, can be greatly influenced by the information provided with the product.

This research showed that university students were influenced by the organic label, revealing their sensory perception about vegetables. This study had multiple methodological approaches, including hedonic scaling and consumers’ WTB. This combination allowed identifying the students’ attitudinal tendency in relation to their sensory perceptions of organic green leafy green vegetables.

We present a critical literature review debating Brazilian research on social and environmental accounting (SEA). The aim of this study is to understand the role of politics in the construction of hegemonies in SEA research in Brazil. In particular, we examine the role of hegemony in relation to the co-option of SEA literature and sustainability in the Brazilian context by the logic of development for economic growth in emerging economies. The methodological approach adopts a post-structural perspective that reflects Laclau and Mouffe’s discourse theory. The study employs a hermeneutical, rhetorical approach to understand and classify 352 Brazilian research articles on SEA. We employ Brown and Fraser’s (2006) categorizations of SEA literature to help in our analysis: the business case, the stakeholder–accountability approach, and the critical case. We argue that the business case is prominent in Brazilian studies. Second-stage analysis suggests that the major themes under discussion include measurement, consulting, and descriptive approach. We argue that these themes illustrate the degree of influence of the hegemonic politics relevant to emerging economics, as these themes predominantly concern economic growth and a capitalist context. This paper discusses trends and practices in the Brazilian literature on SEA and argues that the focus means that SEA avoids critical debates of the role of capitalist logics in an emerging economy concerning sustainability. We urge the Brazilian academy to understand the implications of its reifying agenda and engage, counter-hegemonically, in a social and political agenda beyond the hegemonic support of a particular set of capitalist interests.