O presente estudo faz uma revisão crítica da literatura sobre a mudança tecnológica na agricultura e uma breve descrição da abordagem alternativa do crescimento agrícola. Na literatura tradicional, apresentam-se a difusão tecnológica, o dualismo produtivo e a inovação induzida. Na visão dinâmica, mostra-se a abordagem alternativa do crescimento agrícola, bem como a importância das inovações e da capacidade de absorção de conhecimentos. A grande limitação dos estudos tradicionais, ao abordarem o crescimento agrícola, é a ausência de explicações da busca tecnológica e do processo de aprendizado. A compreensão do setor agrícola deve identificar que nem todo o desenvolvimento tecnológico e geração de novos conhecimentos estão cristalizados nos insumos produtivos. A agricultura não funciona por meio de agentes receptores passivos de tecnologias. O processo de inovação na agricultura é estruturado dentro de complexos arranjos produtivos e de instituições (públicas e privadas) promotoras do conhecimento. Os investimentos e as atividades de experimentação são exercidos dentro da unidade produtiva, gerando maior estoque de conhecimento e ampla capacidade de absorção, além de estimular a apropriação privada dos ganhos produtivos.

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Purpose This paper aims to evaluate the relation between governance and financial efficiency of credit unions in Brazil. The study shows how poor financial efficiency in credit unions may result from undesirable configurations in executive management and other variables related to governance. Design/methodology/approach The study develops an innovative methodology to classify credit unions according to the level of governance using indicators of representativeness and participation, leadership, management and supervision. This methodology integrates the use of multiple correspondence and cluster analysis. The study then applies stochastic frontier models to analyze how governance affects the indicators of financial efficiency. Findings The results highlight that better governance substantially increases the efficiency of credit unions in terms of a higher level of credit operations per institution. Originality/value The paper uses a pioneering survey applied by the Central Bank to almost the total population of credit unions in Brazil. The results highlight how to operationalize a subjective and broad concept related to cooperative governance to identify the remarkable impacts of good governance practices on the financial efficiency of credit unions.

Genetically modified (GM) corn accounting for 90% of total area in Brazil. In this paper, we report the results of a four-year field survey (2010/11, 2013/14, 2014/15 and 2015/16) on corn production costs in Brazil, for two harvests and eleven states. The survey used both a quantitative and a qualitative approach: the first one compares GM and NonGM varieties costs in the two harvests, as well as the evolution of costs for GM corn, and the second part reports the results of a qualitative field survey. Results showed that GM corn costs are higher when compared to NonGM corn, due to higher GM seed prices, which more than compensate for the decrease in insecticides costs. When comparing the evolution of GM corn costs, seed costs tended to decrease, but insecticides had an increasing trend. The qualitative survey interviewed 314 agents, and the results showed that, in most cases, risk reduction, genetic potential, and low availability of NonGM seeds explained GM adoption. These two last factors may reflect a commercial strategy of seed companies, an issue that deserves more attention.

This paper analyzes the view of stakeholders on genetically modified organisms (GMOs) and the implications of these views on communication strategies for agricultural biotechnology in Brazil. It identifies and describes common groups of attitudes toward GMOs using multivariate statistical analyses. The study then looks for patterns of association between the common attitude groups and the following variables: socioeconomic characteristics trust in institutions as information sources and familiarity with the Brazilian biosafety authority. The article contributes to the understanding of public awareness by highlighting how information sources, trust in institutions, and socioeconomic characteristics, such as age and occupational qualification, play important roles in defining patterns of attitudes toward GMOs. The paper also discusses the implications of this knowledge for the development of a communication strategy plan that would promote public awareness and stimulate a well-informed Brazilian public debate on biosafety.