42,986 research outputs found
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 -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 AdSS 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 AdSS background.
Under the covariant 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
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