The Service Sector in Asia: Is It an Engine of Growth?

The underdeveloped service sector in Asia has the potential to become a new engine of economic growth for developing Asia, which has traditionally relied on export-oriented manufacturing to power its growth. The central objective of this paper is to empirically analyze the prospects for the service sector as a future engine of growth. Our analysis of 12 Asian economies indicates that the service sector already contributed substantially to the region’s growth in the past. Furthermore, somewhat surprisingly in light of the difficulty of achieving productivity gains in services, we also find that services labor productivity grew at a healthy pace in much of the region. Overall our analysis provides substantial cause for optimism about the role of the service sector as an engine of growth in Asia. However, some Asian countries where the service sector is currently struggling, such as the Republic of Korea and Thailand, will find it more challenging to develop the sector

Complete type IIA superstring action on IIA plane wave background

We construct the type IIA Green-Schwarz superstring action on a ten-dimensional IIA plane wave background with 24 supersymmetries keeping the full 32 fermionic coordinates. Starting from the symmetry superalgebra for the maximally supersymmetric eleven dimensional plane wave background, we obtain the eleven dimensional superfields. The Kaluza-Klein reduction leads to the ten dimensional superfields for the IIA plane wave background, from which the type IIA superstring action is constructed. We show that the superstring action reduces correctly to the previously known light-cone gauge fixed action upon imposing the light-cone $\kappa$-symmetry fixing condition.Comment: 25 page

Notes on worldvolume supersymmetries for D-branes on AdS_5 X S^5 background

We revisit the 1/2-BPS D-branes on the AdS$_5\times$S$^5$ background. Based only on the classification of 1/2-BPS D-branes obtained by the covariant open string description, we consider various purely static configurations of D-branes without any worldvolume flux on the AdS$_5\times$S$^5$ background. Under the covariant $\kappa$ symmetry fixing condition, we investigate which part the spacetime supersymmetries is preserved on the D-brane worldvolume and obtain the associated worldvolume supersymmetry transformation rules to leading order in the worldvolume fluctuating fields. It is shown that, for purely static configurations without any worldvolume flux, only the AdS type D-branes, in which the AdS radial direction is one of worldvolume coordinates, are 1/2-BPS.Comment: 32 pages, reference adde