238 research outputs found
Exchange rate regime and demand for reserves: evidence from Kenya, Mexico and Philippines
No full textThis paper empirically investigates the demand for international reserves (and foreign exchange reserves) during fixed and floating exchange rates periods in three developing countries: Kenya, Mexico and Philippines. Based on theoretical models, three factors are identified as important for the demand of international reserves and foreign reserves: average propensity to import, volume of imports and variability of reserves. The paper employs the cointegration methodology and error correction method to investigate the relationships. Cointegration tests results indicate a reliable long-run stationary relationship between the international reserves (and foreign exchange reserves) and the stated explanatory variables across countries and sub-periods of fixed and clean float. The error correction results indicate causality from the explanatory variables to the reserves during both the short and long run. This is true during both the fixed and the floating periods
Forecasting the Daily Dynamic Hedge Ratios in Emerging European Stock Futures Markets: Evidence from GARCH models
No full textThis paper empirically estimates and forecasts the hedge ratios of three emerging European and one developed stock futures markets by means of seven different versions of GARCH model. The seven
GARCH models applied are bivariate GARCH, GARCH-ECM, BEKK GARCH, GARCH-DCC, GARCH-X, GARCH-GJR and GARCH-JUMP. Daily data during January 2000-July 2014 from Greece, Hungary, Poland and the UK are applied. Forecast errors based on these four stock futures portfolio return forecasts (based on forecasted hedge ratios) are employed to evaluate out-of-sample forecasting ability of the seven GARCH models. The comparison is done by means of Model Confidence Set (MCS) and modified Diebold-Mariano tests. Forecasts are conducted over two nonoverlapping out-of-sample periods, a two-year period and a one-year period. MCS results indicate that the GARCH model provides the most accurate forecasts in five cases, while each of the GARCH-ECM, GARCH-X and GARCH-GJR models constitutes model confidence set in four cases at a reasonable confidence level. Models selection based on modified Diebold-Mariano tests further corroborate results of the MCS tests. Differences between the portfolio returns also indicate the high forecasting ability of GARCH-BEKK and GARCH-GJR models
Farm size and economic efficiency
No full textThesis (M.S.)-- American University of Beirut. Department of Agricultural Economics and Development, 1984.;"Mohammad Azam Khan Choudhry: Assistant Professor of Agricultural Economics, Advisor. Adib Saad: Professor of Plant Pathology Fawzi M. Al-Haj: ProfeBibliography: leaves 64-66.In underdeveloped countries the measures of resource productivity on farms and relative economic efficiency of different groups of farms are useful for policy purposes. The important argument used frequently, is that the farmers in these areas are irrati
Proproliferative function of adaptor protein GRB10 in prostate carcinoma
No full textGrowth factor receptor-binding protein 10 (GRB10) is a well-known adaptor protein and a recently identified substrate of the mammalian target of rapamycin (mTOR). Depletion of GRB10 increases insulin sensitivity and overexpression suppresses PI3K/Akt signaling. Because the major reason for the limited efficacy of PI3K/Akt-targeted therapies in prostate cancer (PCa) is loss of mTOR-regulated feedback suppression, it is therefore important to assess the functional importance and regulation of GRB10 under these conditions. On the basis of these background observations, we explored the status and functional impact of GRB10 in PCa and found maximum expression in phosphatase and tensin homolog (PTEN)-deficient PCa. In human PCa samples, GRB10 inversely correlated with PTEN and positively correlated with pAKT levels. Knockdown of GRB10 in nontumorigenic PTEN null mouse embryonic fibroblasts and tumorigenic PCa cell lines reduced Akt phosphorylation and selectively activated a panel of receptor tyrosine kinases. Similarly, overexpression of GRB10 in PTEN wild-type PCa cell lines accelerated tumorigenesis and induced Akt phosphorylation. In PTEN wild-type PCa, GRB10 overexpression promoted mediated PTEN interaction and degradation. PI3K (but not mTOR) inhibitors reduced GRB10 expression, suggesting primarily PI3K-driven regulation of GRB10. In summary, our results suggest that GRB10 acts as a major downstream effector of PI3K and has tumor-promoting effects in prostate cancer.Khan, M. I., Al Johani, A., Hamid, A., Ateeq, B., Manzar, N., Adhami, V. M., Lall, R. K., Rath, S., Sechi, M., Siddiqui, I. A., Choudhry, H., Zamzami, M. A., Havighurst, T. C., Huang, W., Ntambi, J. M., Mukhtar, H. Proproliferatve function of adaptor protein GRB10 in prostate carcinoma
Bank Asset Liability Management Best Practice: Yesterday, Today and Tomorrow/ Polina Bardaeva.
No full textIn English.As bankers incorporate more and more complicated and precise calculations and models, a solely mathematical approach will fail to confirm the viability of their business. This book explains how to combine ALM concepts with the emotional intelligence of managers in order to maintain the financial health of a bank, and quickly react to external environment challenges and banks' microclimate changes. ALM embraces not only balance sheet targets setting, instruments and methodologies to achieve the targets, but also the correct and holistic understanding of processes that should be set up in a bank to prove its prudency and compliance with internal and external constraints, requirements and limitations and the ongoing continuity of its operations. Bank Asset Liability Management Best Practice delves into the philosophy of ALM, discusses the interrelation of processes inside the bank, and argues that every little change in one aspect of the bank processes has an impact on its other parts. The author discusses the changing role of ALM and its historical and current concepts, its strengths and weaknesses, and future threats and opportunities.Frontmatter -- Acknowledgments -- Foreword -- Contents -- Preface -- Part 1: Historical Asset and Liability Management Concepts -- Introduction -- Chapter 1. Before the ALM Era -- Chapter 2. Financial Turbulence -- Chapter 3. Emergence of Derivatives -- Chapter 4. Regulators in Place -- Chapter 5. Preservation of Basel III Capital -- Chapter 6. Complete Interrelation -- Chapter 7. ALM Evolution Summary -- Conclusions -- Part 2: Place of Asset and Liability Management in a Bank -- Introduction -- Chapter 8. Prerequisites for ALM -- Chapter 9. ALM Responsibilities (Full Scope) -- Chapter 10. ALM Operating Model -- Chapter 11. ALM Inside a Risk Management Triangle -- Chapter 12. From a Standalone ALM Desk to a Group Treasury -- Conclusions -- Part 3: New Trends in Banking and Challenges for ALM -- Introduction -- Chapter 13. ALM Role in SREP -- Chapter 14. Scope of ALM Involvement for Different Banks -- Chapter 15. ALM Role in Crisis -- Chapter 16. After-Crisis ALM -- Selected Bibliography -- List of Figures -- List of Tables -- List of Abbreviations -- About the Author -- Index1 online resource (XIV, 155 p.)
Crystallography of phase transformations and interphase boundaries in materials.
No full textThe main purposes of this study were; (i) to apply the theory of martensite crystallography to martensitic transformations in low-symmetry materials, (ii) to investigate, using the computer simulation method, the microscopic structure of complex interphase boundaries which are not yet fully understood in terms of the martensitic mechanism. Although the unique symmetry of a twin boundary makes it a rather exceptional kind of interface, it is clearly a particularly appropriate starting point especially due to the role which twinning plays in martensitic transformations. The accuracy of twinning modes is vital for their use as lattice-invariant shears in theories of martensite crystallography. Potential twinning modes for zirconia were determined using the analysis due to Bilby and Crocker (1965) and the associated atomic shuffling was also considered. Twinning orientation relationships involving a screw axis and a glide plane have been established. The theory of martensite crystallography (Acton et al. 1970) was then applied to the tetragonal to monoclinic martensitic transformation in zirconia. The predictions for the habit plane, shape strain and the direction of the shape deformation were obtained and compared with available experimental observations. The application of the theory was also extended to the face-centred cubic to monocline martensitic transformation in plutonium alloys. The predictions of the crystallographic features for this transformation are reported. The computer simulation method was applied to investigate the relaxed atomic structure and energies of the complex interphase boundaries. The (100)b//(100)f and the (011)b /(111)f interphase boundaries were investigated using interatomic potential. Special consideration was given to the misfit dislocations at the interface which can accomplish the lattice-invariant shear of the phenomenological theories of martensite crystallography. A new equilibrium interatomic potential for iron was developed to study the relaxed structure of the (225)f b. c. c. /f. c. c. interphase boundary. These results are also compared with experimental information. Finally the general results of the thesis are discussed and main conclusions summarized
Performance Improvement In Distribution Feeder By Installing Distributed Generation At Strategic Locations
No full textThermomechanical processing of aluminum alloy 2090 for superplasticity
No full textThe effect of processing variables on the microstructural development and superplasticity of aluminum alloy 2090, a high strength Aluminum-Copper-Lithium-Zirconium alloy of reduced density in comparison to other A1-based materials, was investigated. Following previous research, warm rolling was conducted to strains, up to 3.36 and it was found that increasing the strain to values greater than 2.6 offered no improvement in subsequent superplastic response. Increased rolling speeds likewise did not enhance ductibility above a maximum value of approximately 240 percent. Microstructural examination revealed a refined, homogeneous microstructure consisting of T2 particles distributed in an alloy matrix. These particles reside a triple junctions in a recovered microstructure.Lieutenant Commander, Pakistan Navyhttp://archive.org/details/thermomechanical109452731
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