Browsing by Subject "theoretical study"

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    Almost quantum correlations
    (Nature Publishing Group, 2015) Navascués, M.; Guryanova, Y.; Hoban, M.J.; Acín, A.
    Quantum theory is not only successfully tested in laboratories every day but also constitutes a robust theoretical framework: small variations usually lead to implausible consequences, such as faster-than-light communication. It has even been argued that quantum theory may be special among possible theories. Here we report that, at the level of correlations among different systems, quantum theory is not so special. We define a set of correlations, dubbed 'almost quantum', and prove that it strictly contains the set of quantum correlations but satisfies all-but-one of the proposed principles to capture quantum correlations. We present numerical evidence that the remaining principle is satisfied too. © 2015 Macmillan Publishers Limited.
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    Trade, growth, and environmental quality
    (2009) Sirakaya, S.; Turnovsky, S.J.; Alemdar, N.M.
    This paper examines linkages between international trade, environmental degradation, and economic growth in a dynamic North-South trade game. Using a neoclassical production function subject to an endogenously improving technology, North produces manufactured goods by employing labor, capital, and a natural resource that it imports from South. South extracts the resource using raw labor, in the process generating local pollution. We study optimal regional policies in the presence of local pollution and technology spillovers from North to South under both non-cooperative and cooperative modes of trade. Non-cooperative trade is inefficient due to stock externalities. Cooperative trade policies are efficient and yet do not benefit North. Both regions gain from improved productivity in North and faster knowledge diffusion to South regardless of the trading regime. © 2009 The Authors. Journal compilation © 2009 Blackwell Publishing Ltd.