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This study aims to investigate the three-way interaction effect of sanitary risk, aesthetic risk and psychological risk on consumers' purchase intention for second-hand clothing (SHC) based on perceived risk theory.

A survey method is used to collect data from consumers, and the final valid sample comprises 290 respondents. Partial least squares structural equation modelling (PLS-SEM) and PROCESS macro are used to analyse the data.

The results reveal that aesthetic risk moderates the negative influence of sanitary risk on purchase intention, such that the negative influence is stronger when aesthetic risk is high. In addition, the three-way interaction effect of sanitary risk, aesthetic risk and psychological risk on consumers' purchase intention for SHC is found to be significant. That is, the negative influence of sanitary risk on purchase intention is strongest when both aesthetic risk and psychological risk are high.

Previous studies have only examined the direct effect of perceived risk on consumers' purchase intention for SHC. This study contributes to perceived risk theory by examining the joint moderating effect of aesthetic risk and psychological risk on the relationship between sanitary risk and purchase intention in the context of SHC.

This study aims to investigate the influence of perceived risk, including financial, functional, aesthetic, sanitary, psychological and social risks, on the intention to purchase second-hand clothing (SHC) between SHC consumers and non-SHC consumers based on perceived risk theory.

A total of 290 responses were collected, with 110 from SHC consumers and 180 from non-SHC consumers. Partial least squares structural equation modelling was used to validate the hypotheses. Additionally, a permutation test and multigroup analysis (MGA) were performed.

The findings indicate that different types of risk have varying effects on both SHC and non-SHC consumers’ intention to purchase SHC. In particular, financial, aesthetic and social risks are found to be significant predictors of purchase intention for SHC consumers. By contrast, sanitary and psychological risks are significant predictors of purchase intention for non-SHC consumers. Furthermore, the MGA results indicate a significant difference between SHC consumers and non-SHC consumers in the relationship between financial risk, social risk and purchase intention.

To the best of the authors’ knowledge, this is the first study to examine the effects of different types of risk on the intention to purchase SHC in both SHC and non-SHC consumers. The findings will provide practitioners with practical insights for developing more effective strategies to target these two distinct consumer groups.

During a crisis situation, a poultry supply chain is faced with high variations on fresh chicken meat demand and has therefore to simultaneously manage excessive shelf-life stocks (in case of falling demand) and external purchases due to inventory shortages. In this case, the production plan is often established according to non-accurate sale forecasts which require ongoing adjustment. The paper aims to discuss these issues.

By using system dynamics, the paper developed a model of the French poultry supply chain during a given avian influenza crisis period. The authors compared exponential smoothing forecasting method to a word-of-mouth diffusion model which makes sense in a sanitary crisis context.

An interesting result shows a complex relationship between the sanitary risk (which increases according to the slaughtered chicken's volume and storage time) and the additional external purchases (in case of low production generated by an insufficient forecasting launched 40 days before customer orders).

Additional costs which vary over time are required for further assumptions testing.

The paper proposes to use a forecasting model which is not currently used by the professionals during a sanitary crisis period. This model is able to simulate an internal dissemination of a call for boycott of meat products (cf. negative word-of-mouth spread).

The problem is how to maintain a less risky but significant buffer size to respond to a supply chain coping with both changes in customers’ demand and instability in production capacity.

The aim of this study was to evaluate the good manufacturing practices in meal services in public schools and day care centres in Baixada Santista, Brazil using a health risk classification.

A total of 59 public schools and day care centres in nine municipalities of Baixada Santista – Brazil were randomly selected. The sanitary conditions were evaluated by applying a validated checklist specific to school meal service. The questions were scored according to the health risks detected. A percentage of conformity to good manufacturing practices was calculated, than schools and day care centres were classified according to health risk in relation to the scores obtained for each thematic area addressed in the checklist and in relation to the overall score.

It was observed that 62 per cent of the schools were classified as average health risk failing to comply with Brazilian legislation on food safety rules. The thematic areas that showed lower percentage of conformity to good manufacturing practices were: hand hygiene (33.9 per cent), pest control (3.4 per cent), food handlers (62.4 per cent) and food hygiene (65.4 per cent). The school meal service of day care centres presented higher conformity in the hand hygiene (p<0.01) and the environmental sanitation (p<0.05) than elementary schools.

The data observed in our study highlight the need of an effective system to monitor and evaluate the hygienic sanitary conditions in Brazil. The implementation of HACCP system may be an option with good potential to produce safer meals in school environment, nevertheless, the prerequisite program must be implemented first. Professionals with expertise in food safety can act as consultants to the school meal service and may use the data from this study as a benchmark for interventions.

This paper contain new information related the state food safety practices of Brazilian school meal service. It also presents the use of scores to determine risk. The use of health risk is a novel way to evaluate the food safety practices in school meals facilitating the implementation of corrective measures.

When genetically modified organisms (GMOs) were put into the international trade, people in many countries, especially European countries, became skeptical of them. A perception developed that they are harmful to human, animal, plant life and health, and destructive to the environment. It is true that if there is no safe use of genetically modified living organisms (LMOs), other species might be affected causing loss to the environment. So as to ensure safe use of LMOs and GMOs, the Cartagena Protocol and the SPS Agreement were, respectively, made. The purpose of this paper is to critically examine both the legal instruments and to explore ways to make them co‐existent, so that human, animal, plant life and health, and the environment are protected without affecting the international trade in LMOs and GMOs.

This paper undertakes a critical examination of the issues surrounding GMOs and LMOs.

The Cartagena Protocol and the SPS Agreement serve two different purposes. It is for this reason that some of their provisions are not co‐extensive. But the conflict in them can be resolved. It is suggested that the provisions pertaining to the precautionary principle of the SPS Agreement should be brought in line with that of the Cartagena Protocol. It is also suggested that importing countries should conduct their own risk assessment preferably by following the CODEX procedure. In no case, risk assessment done by producing companies should be taken as conclusive.

If suggestions offered by the paper are followed, the two will then protect the human, animal and plant health and the environment in the best possible way.

For achieving its object, the paper presents a comparative assessment of the cases decided under the General Agreement on Tariffs and Trade (GATT) and the World Trade Organization (WTO).

This study aims to confirm the expected impact of coronavirus (COVID-19) related to perceived travel risk on the likelihood of tourists to visit a destination. It then aims at identifying the key predictors of perceived travel risk in the aftermath of the COVID-19 pandemic. A theoretically grounded framework is proposed which can be further improved to understand and predict international travel behaviours within the context of global pandemics.

A mixed-methods design is adopted. In the first phase referred to as Study 1, a cross-sectional design is used based on a sample of 217 international outgoing tourists surveyed at the Mauritian International Airport and data is analysed using hierarchical regression. In Phase 2, referred to as Study 2, a purposive sample of tourists around the world are interviewed and data is analysed using the thematic analysis technique.

The results show that amongst those tourists who are willing to travel in the aftermath of the COVID-19 crisis, the related perceived risk is likely to influence their travelling intention. Several key predictors of perceived travel risks are uncovered, those are categorised as COVID-19 status; transportation services; national sanitary measures; health-care services; accommodation services; ecotourism facilities. Moreover, the potential effects of those factors on perceived COVID-19 related travel risk are likely to be moderated by the trustworthiness of the information.

The implications of the study are important for researchers and policymakers to better understand and predict travellers’ behaviour in times of pandemics. These implications are also important to tourism marketers and transport and hospitality service providers to more effectively manage and mitigate the effect of such events.

The study provides an original comprehensive model grounded in the social cognitive theory and protection motivation theory to understand the predictors of perceived travel risks in relation to COVID-19 at a destination.

本文采用了混合的研究方法设计。在研究1的第一阶段中, 本文采用了横向比较研究设计, 对在毛里求斯国际机场进行调查收集的217名国际出境游客样本, 使用分层回归分析了数据。在第二阶段（研究2）中, 采用了立意取样的抽样方法, 采访了来自世界各地的旅游者, 并使用主题分析技术对数据进行了分析。

这项研究证实了与COVID-19相关的感知旅行风险对游客访问目的地的可能性的预期影响。然后, 它旨在确定COVID-19大流行后感知的旅行风险的关键影响因子。

结果表明, 在COVID-19危机之后愿意旅行的那些游客中, 相关的感知风险很可能会影响他们的旅行意图。感知的旅行风险的几个关键影响因素分为：COVID-19状况; 运输服务; 国家卫生措施; 医疗服务; 住宿服务; 生态旅游设施。而且, 这些因素对与COVID-19相关的感知旅行风险的潜在影响可能会受到信息的可信度的调节影响。

该研究对于研究人员和决策者更好地了解和预测大流行期间旅客的行为, 以及旅游营销人员以及运输和酒店服务供应商提供有效管理和减轻此类事件的影响具有重要意义。

该研究提供了一个原创且全面的模型, 以了解与目的地COVID-19相关的感知旅行风险的影响因素。

Se adopta un diseño de métodos mixtos. En la primera fase, denominada estudio 1, se adopta un diseño transversal basado en una muestra de 217 turistas internacionales encuestados salientes del Aeropuerto Internacional de Mauricio y los datos se analizan mediante regresión jerárquica. En la segunda fase, denominada estudio 2, se entrevista a una muestra intencional de turistas de todo el mundo y se analizan los datos mediante la técnica de análisis temático.

Este estudio confirma empíricamente el impacto esperado de la percepción del riesgo de viaje relacionado con COVID-19 sobre la probabilidad de que los turistas visiten un destino. A continuación, tiene por objeto identificar los principales factores de predicción del riesgo percibido de los viajes tras la pandemia de COVID-19.

Los resultados muestran que entre los turistas que están dispuestos a viajar tras la crisis de COVID-19, es probable que el riesgo percibido relacionado influya en su intención de viaje. Se han descubierto varios predictores clave de los riesgos percibidos de los viajes, que se clasifican como: Situación de COVID-19; servicios de transporte; medidas sanitarias nacionales; servicios de salud; servicios de alojamiento; instalaciones de ecoturismo. Además, es probable que los posibles efectos de esos factores en la percepción de los riesgos de viaje relacionados con COVID-19 se vean moderados por la fiabilidad de la información.

Las repercusiones del estudio son importantes para que los investigadores y los encargados de formular políticas comprendan y prevean mejor el comportamiento de los viajeros en épocas de pandemia y también para que el mercado turístico y los proveedores de servicios de transporte y hostelería gestionen y mitiguen más eficazmente el efecto de esos acontecimientos.

El estudio proporciona un modelo original y completo para comprender los predictores de los riesgos percibidos en los viajes en relación con COVID-19 en un destino.

This study is in line with the debate concerning the compatibility between the qualitative and quantitative food production objectives. The purpose of this paper is to identify the causal relationship that may exist between public food safety regulations (specifically, the maximum authorised levels of chemical or microbiological contaminants), and the expected price in the spot markets (wholesale markets, for example).

The authors propose a theoretical industrial economic model that identifies the causal link which may exist between public food safety regulations (e.g. the maximum authorised levels of chemical or microbiological contaminants), the expected price in domestic markets, and the rate of exclusion of local producers. This general model allows one to characterize the price formation process in markets subject to maximum residue level constraints by focusing on the role of the official inspection systems established by public authorities.

The authors show how strengthening official controls does not systematically impact negatively on producers’ participation and does not always decrease supply. Moreover, the authors show that reinforcing the maximum permitted contamination thresholds is not always sufficient for ensuring consumer health.

The originality of the model is that it shows how all variables (economic and sanitary variables) interact in the formation of agricultural prices and determine the final size of the productive system (number of active producers). The characterisation of the market price as a function of producers’ investment efforts and of the level of official control reliability allows one to determine both the total supply and the proportion of this supply that is contaminated (i.e. does not comply with the maximum threshold of contamination).

The purpose of this paper is to develop, validate the content and analyze the inter-rater reliability of a checklist of good hygiene practices in food trucks (GHPFT).

The study was carried out in Curitiba, Brazil, and divided into three stages: preparation of the evaluation checklist; validation of the checklist’s content; and reliability analysis. Content validation was carried out by six experts using the Content Validity Index (CVI). The reliability analysis was performed on five food trucks by four partners using the κ coefficient.

Prior to validation, the checklist contained 34 items divided into 9 categories; after, this number was changed to 30 items divided into 8 categories. The validated checklist presented a CVI=0.867 for each of the categories and κ between 0.636 and 0.759, indicating good reproducibility.

The checklist considered the requirements of Brazilian laws, and may not reflect the good hygiene practices requirements specific to other countries.

The checklist proposed is an unprecedented tool, and may be used in the implementation of good hygiene practices and in inspections carried out by the Health Regulatory Agency for the street food segment.

The study was the first to describe the development, content validation and inter-rater reliability analysis of an evaluation checklist for GHPFT, and the results can be used by professionals working in the area.

This paper reviews the potential uses of sanitary landfill biogas, and the possibility of harnessing biogas from the Bellville South Municipal Landfill (within the City of Cape Town, South Africa), as primary energy. This paper will focus on a specific landfill site as a case study. The theoretical research involves investigating aspects on the gas extraction and application possibilities for the site. Thereafter, two industrial gas usage scenarios located within the study area are examined in order to quantify the potential energy production and carbon emissions benefits. The gross energy production from the landfill’s biogas is estimated to be 520 × 10⁶ MJ annually, whilst 262 × 10⁶ and 527 ×10⁹ litres of carbon savings for two different industrial applications are theoretically achievable. On the basis of this analysis, conclusions are drawn regarding the potential for harnessing of the gas in relation to the case study and elsewhere.

The flow of the Sino-Brazilian frozen beef trade has intensified. Thus, the purpose of this paper is to characterize the supply chain structure, and identify its major fragilities.

Supply chain mapping was conducted based on the existing literature and primary data collection. Key stakeholders were detected and questioned through semi-structured interviews, which were later interpreted with content analysis.

The results reveal a low degree of chain coordination from the Brazilian farm to the Chinese consumer, arising from an immature traceability mechanism, a limited flow of reliable information between the segments, and low trust between the stakeholders.

The infancy of the beef trade, the paucity of literature on the topic, and restricted accessibility to key governmental and official materials imposes limits on the available information. Language and cultural barriers might have also impacted the interviewees’ responses. However, the participation of Brazilian and Chinese academics in both the interview analysis and chain mapping mitigates these shortcomings.

The Brazilian public and private sectors need to establish a reliable traceability system and information platform. This, together with investments in marketing and branding, would facilitate differential responses among traders and consumers, and, hence, improve supply chain sustainability.

By adopting an inter-country approach and directly sourcing views from specific key figures in the supply chain this study offers some unique insights and contributes to the literature on the emergence of a multi-polar global food trade.