2,724 research outputs found
On the Landau-Ginzburg description of Boundary CFTs and special Lagrangian submanifolds
We consider Landau-Ginzburg (LG) models with boundary conditions preserving
A-type N=2 supersymmetry. We show the equivalence of a linear class of boundary
conditions in the LG model to a particular class of boundary states in the
corresponding CFT by an explicit computation of the open-string Witten index in
the LG model. We extend the linear class of boundary conditions to general
non-linear boundary conditions and determine their consistency with A-type N=2
supersymmetry. This enables us to provide a microscopic description of special
Lagrangian submanifolds in C^n due to Harvey and Lawson. We generalise this
construction to the case of hypersurfaces in P^n. We find that the boundary
conditions must necessarily have vanishing Poisson bracket with the combination
(W(\phi)-\bar{W}(\bar{\phi})), where W(\phi) is the appropriate superpotential
for the hypersurface. An interesting application considered is the T^3
supersymmetric cycle of the quintic in the large complex structure limit.Comment: 28+1 pages; no figures; requires JHEP.cls, amssymb; (v2) typo
corrected; (v3) references adde
Impact of exchange rate changes on domestic inflation: a study of a small Pacific Island economy
This paper investigates the effect of changes in exchange rate on consumer price level, in Fiji, known as exchange rate pass-through during a thirty year period (1982-2009). Specifically, three time periods are focused on: the pre-coup years (1982-1986); post coup years (1987-2009); and full time period (1982-2009). Monthly data on consumer price index, nominal exchange rate, monetary aggregate and interest rate are utilized. The study results show that the degree of exchange rate pass-through to domestic price was relatively low during the entire sample period at 0.183. It was 0.453 and 0.373 for the pre and post coups periods. Regardless of the sample periods under study, the monetary aggregate, as a variable plays a pivotal in stabilizing the price level.Exchange rate pass-through, price, monetary measure, cointegration, Granger causality
Impact of global growth fluctuations on India: an empirical study
The article examines how growth fluctuations in major trading partner countries of the world have affected the Indian economy since its liberalization from the mid 1990s. This empirical study confirms that domestic output of India was strongly influenced by global shocks. The findings are not surprising as Indiaâs trade and financial integration with the rest of the world has been on the rise.Economic integration, global shock, regional shock, India
Role of Remittances in Economic Development: An Empirical Study of Worldâs Two Most Remittances Dependent Pacific Island Economies
In the context of the ongoing world-wide recession and the consequent dim prospects for exports from small Pacific island countries, mobilization of foreign exchange earnings assumes considerable importance. The dependency of Samoa and Tonga on inward remittances is well known, as the two Polynesian island countries in recent years have been amongst the first top ten remittance recipient countries of the world. This paper examines the long-run nexus between economic growth and inward remittances during a three-decade period (1981-2008). The paper also discusses some important policy implications arising out of the study findings.Remittances, financial sector development, economic growth, bounds test, Samoa, Tonga
Microstructures in rapidly solidified Ni-Mo alloys
Ni-Mo alloys of compositions ranging from pure Ni to Ni-40 at % Mo were rapidly solidified by Chill Block Melt Spinning in vacuum and were examined by optical metallography, X-ray diffraction and transmission electron microscopy. Rapid solidification resulted in an extension of molybdenum solubility in nickel from 28 to 37.5 at %. A number of different phases and microstructures were seen at different depths (solidification conditions) from the quenched surface of the melt spun ribbons
SPREAD OF ICT AND ECONOMIC GROWTH IN PACIFIC ISLAND COUNTRIES: A PANEL STUDY
This paper investigates the impact of information and communications technology (ICT) on economic growth in Pacific Island countries by employing an augmented production function model and panel data analysis from 2002 to 2017. The empirical findings reveal that ICT-related indicators have a positive and significant impact on the economic growth process, along with the fundamental variable of capital stock. The effect of control variables such as foreign direct investment and exports have a positive effect on the real gross domestic product per capita, whereas inflation has a negative effect. The sensitivity evaluation of ICT indicators with different control variables produces consistent evidence of ICTâs effect on economic growth. Policymakersas well as ICT stakeholders should enhance investments for improving ICT-relatedinfrastructure and promoting technology to boost economic growth in Pacific Islandcountries.This paper investigates the impact of information and communications technology (ICT) on economic growth in Pacific Island countries by employing an augmented production function model and panel data analysis from 2002 to 2017. The empirical findings reveal that ICT-related indicators have a positive and significant impact on the economic growth process, along with the fundamental variable of capital stock. The effect of control variables such as foreign direct investment and exports have a positive effect on the real gross domestic product per capita, whereas inflation has a negative effect. The sensitivity evaluation of ICT indicators with different control variables produces consistent evidence of ICTâs effect on economic growth. Policymaker
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