The composition and impact of stakeholders' agendas on US ethanol production
2012
Talamini, Edson | Eduardo Caldarelli, Carlos | Wubben, Emiel F.M. | Dewes, Homero
This paper aims to identify the macro-environmental dimensions under which journalists, scientists and policy-makers have framed the liquid biofuels in the US over time. The number of publications concerning liquid biofuels from mass media, scientific community and government with ethanol production are correlated, seeking for causality between ethanol production and those stakeholders' agendas. Text-mining techniques were used to explore 2016 mass-media news sources, 455 scientific papers and 854 government documents published between 1997 and 2006. Granger-causality tests were performed to analyse the causality concerning stakeholders' agendas. The results indicate that scientists emphasise environmental, agronomic and technological matters, while journalists are more interested in covering economic, environmental, geopolitical and political issues. Although policies on this subject appear to be more in line with science, the trend analysis indicates that the mass media are gaining prominence amongst policy-makers. The causation analysis suggests that ethanol production and public policy present a bi-directional causality at t-2 time lag. At t-1 time lag, ethanol production precedes the publication of scientific documents, which present a bi-directional causality with public policy on ethanol and precedes the mass-media news. In conclusion, ethanol production precedes the presence of liquid biofuels on the agendas of scientists, journalists and policy-makers.
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