In Search of a Breakthrough for the Korea-EU FTA Negotiations

The purpose of this paper is to seek a breakthrough for the Korea-EU FTA negotiation in agriculture which started last year, but has not made much progress yet. The EU has been asking Korea to open its agricultural market to the same extent that was agreed upon in Korea’s free trade agreement with the U.S. while the Korean government firmly opposes the EU’s request, saying that FTA negotiations differ from multilateral trade talks as in the WTO. An examination of agricultural trade among Korea, the EU, and the U.S. shows that there may be many niche markets of which the EU can take advantage over other agricultural exporting countries including the U.S. Also, it is expected that the EU could gain much from its agricultural trade with Korea through an FTA, even without a market access level equal to one stipulated in the Korea-U.S. FTA accord. As far as agriculture is concerned, the slower does the talk proceed, the better to Korea, with the EU losing huge expected trade gains. It is suggested that the EU needs to be more flexible in the talks by focusing on a new strategy that can maximize trade diversion effects stemming not only from price but from non-price factors, rather than simply asking for the same level of market opening as in Korea-U.S. FTA. This would be the better way for the EU to become a winner in the battle for Korean agricultural market.Korea-EU FTA, Agricultural Trade, Trade Diversion Effects, International Relations/Trade,

Object-oriented construction of a multigrid electronic-structure code with Fortran 90

We describe the object-oriented implementation of a higher-order finite-difference density-functional code in Fortran 90. Object-oriented models of grid and related objects are constructed and employed for the implementation of an efficient one-way multigrid method we have recently proposed for the density-functional electronic-structure calculations. Detailed analysis of performance and strategy of the one-way multigrid scheme will be presented.Comment: 24 pages, 6 figures, to appear in Comput. Phys. Com

Predominance of the Kitaev interaction in a three-dimensional honeycomb iridate: from ab-initio to spin model

The recently discovered three-dimensional hyperhoneycomb iridate, $\beta$-Li$_2$IrO$_3$, has raised hopes for the realization of dominant Kitaev interaction between spin-orbit entangled local moments due to its near-ideal lattice structure. If true, this material may lie close to the sought-after quantum spin liquid phase in three dimensions. Utilizing ab-initio electronic structure calculations, we first show that the spin-orbit entangled basis, $j_{\rm eff}$=1/2, correctly captures the low energy electronic structure. The effective spin model derived in the strong coupling limit supplemented by the ab-initio results is shown to be dominated by the Kitaev interaction. We demonstrated that the possible range of parameters is consistent with a non-coplanar spiral magnetic order found in a recent experiment. All of these analyses suggest that $\beta$-Li$_2$IrO$_3$ may be the closest among known materials to the Kitaev spin liquid regime.Comment: 9 pages, 6 figures, 2 table