The Development and Future of EU Agricultural Trade Preferences for North-African and Near-East Countries

The EU recently completed negotiating a series of Association Agreements with Mediterranean countries. Trade preferences for agricultural goods granted under these Agreements, as well as under former arrangements, are analyzed by calculating the value of preference margins at several stages in the evolution of preferences. The total value of preference margins for all countries covered was about 130 million under the agreements of the mid-1970s and increased by 48 per cent until 1995; by 2000 this value declined by about 14 per cent due to reduced EU MFN tariffs. The extended preferences under the new Agreements more than compensate for this decline and will result in a total value of preference margins of 226 million once all Agreements have entered into force.preferential trade, preference margin, Mediterranean countries, Euro-Mediterranean Agreements, preference erosion, International Relations/Trade,

Interplay between multiple scattering and optical nonlinearity in liquid crystals

We discuss the role played by time-dependent scattering on light propagation in liquid crystals. In the linear regime, the effects of the molecular disorder accumulate in propagation, yielding a monotonic decrease in the beam spatial coherence. In the nonlinear case, despite the disorder-imposed Brownian-like motion to the self-guided waves, self-focusing increases the spatial coherence of the beam by inducing spatial localization. Eventually, a strong enhancement in the beam oscillations occurs when power is strong enough to induce self-steering, i.e. in the non-perturbative regime.SCOPUS: ar.jinfo:eu-repo/semantics/publishe