221 research outputs found
Reforming the EU Sugar Policy
This article presents and analyses the impacts of the EU sugar policy. Particular attention is given to the modelling of the quite complex policy and the calibration of the global general equilibrium model at the member state level. Two scenarios are analysed, namely a reduction in the intervention price of sugar and the sugar quota. It is found that the economic impacts of the two scenarios are quite different in terms of the effects on European production and trade in sugar as well in terms of efficiency. The impacts for developing countries also differ considerably across the two scenarios.EU sugar policy, general equilibrium modelling, reform scenarios, Agricultural and Food Policy, C68, D58, Q17, Q18,
Measurements of Stellar Properties through Asteroseismology: A Tool for Planet Transit Studies
Oscillations occur in stars of most masses and essentially all stages of
evolution. Asteroseismology is the study of the frequencies and other
properties of stellar oscillations, from which we can extract fundamental
parameters such as density, mass, radius, age and rotation period. We present
an overview of asteroseismic analysis methods, focusing on how this technique
may be used as a tool to measure stellar properties relevant to planet transit
studies. We also discuss details of the Kepler Asteroseismic Investigation --
the use of asteroseismology on the Kepler mission in order to measure basic
stellar parameters. We estimate that applying asteroseismology to stars
observed by Kepler will allow the determination of stellar mean densities to an
accuracy of 1%, radii to 2-3%, masses to 5%, and ages to 5-10% of the
main-sequence lifetime. For rotating stars, the angle of inclination can also
be determined.Comment: To appear in the Proceedings of the 253rd IAU Symposium: "Transiting
Planets", May 2008, Cambridge, M
European free trade areas as an alternative to doha - impacts of US, Russian and Chinese FTAs
Evaluation of different turbulence models with respect to coherences, spectras and lengthscales
The economy-wide impact of multilateral NAMA tariff reductions:a global and Danish perspective
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