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This article deals with the roles of ambiguity and discretion in the governing of migration and how they contribute to the marginalisation of migrants at the borders of EUrope. Building on ethnographic research and interviews conducted in Sicily, it connects legal-institutional ambiguities of two recent policy interventions in the field of migration governance in Italy – the Security Decree-Law and the Hotspot Approach – to the discretionary practices by public officials tasked with their implementation. By theoretically and empirically tracing the co-constitutive relationship of ambiguity and discretion, the article draws on and contributes to recent inquiries into grey areas of governance, particularly in the field of (critical) border regime studies. Based on two distinct cases, it analyses how ambiguity and discretionary local practices are related both to each other and to the contemporary fragmentary reconfiguration processes of the EUropean Migration and Border Regime, and shows how they intersect to form spatio-juridical grey areas that foster the spatial and social marginalisation of migrants in EUrope. [ABSTRACT FROM AUTHOR]

Several environmental problems are complicated by ambiguity. Sea-level rise following climate change is one relevant example. In this paper, we apply a decision-making approach specifically designed to deal with ambiguity in order to evaluate the net benefits of the mobile barriers system (MOSE), which aims to protect the Venice Lagoon from periodic flooding. We show that the estimated impacts crucially depend on the level of optimism and pessimism of the decision maker and substantially differ from those calculated on the basis of the expected value. We also calculate the implicit ambiguity attitude of the decision maker. [Copyright &y& Elsevier]

Abstract: This study investigated the processing of direct Italian “who”-questions, containing a temporary ambiguity of the syntactic role (subject/object) of the initial pronoun. To this aim we measured event-related potentials (ERPs) evoked by the disambiguating verbal agreement word and by the following ones. Results showed two positive deflections, corresponding to a P300 and to a P600, only at the target verb of the object-first extraction, the condition which has been demonstrated to be less preferred by speakers. The functional meaning of this positive complex, similar to patterns already reported for German subject/object ambiguous relative clauses, was discussed with reference both to results obtained in other languages using similar sentences and to psycholinguistic parsing models. [Copyright &y& Elsevier]