Summary: Beliefs, social rules, and food taboos influence the emotions we feel about food, determining our attitudes and consumption behaviors. The more a product represents values considered important to individuals, the greater the chance of being chosen for consumption. This article aimed to investigate levels of zoophagy and sarcophagy to propose an index to understand consumers' attitudes towards beef. Three hundred and eighty-five people answered a structured questionnaire that allowed them to assess personality traits and attitudes that can explain beef consumption, as well as its rejection. Factor analysis was the analytical model chosen to construct the attitude determination index. For the construction of the General Degradation Index (GDI), an attitude determination index associated with the degree of zoophagy was built first. The results indicate that extroversion, individualism, festivity, and immediacy were the traits that best characterized positive attitudes towards beef. On the other hand, negative attitudes of introspection, reflection, emotional character, and concern for the future marked the responses of those who answered.

O presente artigo tem por objetivo verificar os impactos das mudanças no ambiente institucional, europeu e nacional, em virtude das exigências do consumidor europeu quanto à qualidade do produto, sobre o Sistema Agroindustrial Bovino nacional. Os resultados indicam que embora o aumento das exigências dos consumidores europeus tenha alterado o ambiente institucional do bloco, com conseqüentes alterações no ambiente institucional brasileiro, houve pouco impacto sobre a forma de governança das transações do SAG da carne bovina nacional. Na relação da indústria frigorífica exportadora com o fornecedor de boi, verificou-se que não há estabelecimentos de contratos nas transações, que pode ser explicado pela credibilidade entre as partes no que tange ao pagamento e à entrega de bois, e também pela falta de enforcement (aplicação das regras) da rastreabilidade por parte da UE e do governo brasileiro (o que reduz a especificidade do ativo da matéria-prima). Quanto à relação do frigorífico com seus compradores do mercado interno prevalece um compromisso confiável entre as partes, sendo as transações conduzidas via mercado. No que se refere às relações dos frigoríficos exportadores com o mercado europeu, o aumento da especificidade dos ativos conduziu ao estabelecimento de contratos como forma de diminuir seus custos de transação. | The present work aims to analyze the changes in the institutional environments, European and National, due to European consumers' requirements regarding the quality of products, about the National Beef Agro-Industrial System. The results indicate that despite the rise on requirements from European consumers, which has changed the institutional environment of the block, with consequent changes in the Brazilian institutional environment, there has been little impact on the governing procedures of transactions of SAG of domestic beef. Regarding the relationship between beef export slaughterhouse industry and beef suppliers, it was verified that there are no establishments of agreements for the transactions, that this fact can be explained through the creation of reliable commitments between the parts, as for the paying and delivery of cattle, and also by the lack of enforcement on traceability on the part of the European Union and the Brazilian government (which reduce the peculiarity of the assets of the raw material). As for the relationship between the slaughterhouse and its consumers of the domestic market, a reliable commitment prevails between the two parties, being the transactions conducted through the market. Regarding the relationship between the export slaughterhouse and the European market, the rise on the peculiarity of assets leads to the establishment of agreements as a way to reduce the costs of transactions.