785 research outputs found
China’s financial growth: an asset pricing perspective
No full textApresentação do palestrante Jianping Mei - Cheung Kong Graduate School of Business no contexto do evento "China and the World Economy"
R09. New Atractylon Derivatives Generated in Processed Rhizomes of Atractylodes macrocephala Koidz
Full text linkCorresponding author (NCNPR): Jianping Zhao, [email protected]://egrove.olemiss.edu/pharm_annual_posters/1008/thumbnail.jp
Risk Characteristics of Real Estate Related Securities--An Extension of Liu and Mei (1992)
Full text linkThis study extends from Liu and Mei (1992) by further investigation of assets, real estate related securities, which includes both equity and mortgage real estate investment trusts (REITs), the stocks of builder- and owner-companies, and mortgage-backed securities (MBSs). There are five major findings. First, expected excess returns of real estate related securities are more predictable than the expected excess returns of value-weighted stocks and bonds. Second, right market timing is important to investors since evidence shows that the risk premiums of real estate related securities vary substantially over time. Third, real estate market conditions significantly influence bonds and MBSs. Fourth, MBSs are more similar to bonds than mortgage REITs. In addition, returns on mortgage REITs resemble both stocks and bonds. Finally, real estate stocks have a very high sensitivity toward stock market portfolio. This suggests that real estate stocks are not good instruments to help diversify stock risk.
Speculative Trading and Stock Prices: Evidence from Chinese A-B Share Premia
Full text linkThe market dynamics of technology stocks in the late 1990s have stimulated a growing body of theory that analyzes the joint effects of short-sales constraints and heterogeneous beliefs on stock prices and trading volume. This paper examines several implications of these theories using a unique data sample from a market with stringent short-sales constraints and perfectly segmented dual-class shares. The identical rights of the dual-class shares allow us to control for stock fundamentals. We find that trading caused by investors¡¯ speculative motives can help explain a significant fraction of the price difference between the dual-class shares.Speculative bubble, Trading volume
Single zircon ages from high-grade rocks of the Jianping Complex, Liaoning Province, NE China
No full textThe high-grade rocks of the Jianping Complex in Liaoning Province, NE China, belong to the late Archaean to earliest Proterozoic granulite belt of the North China craton. Single zircon ages obtained by the bb-bo evaporation method and SHRIMP analyses document an evolutionary history that began with deposition of a cratonic supracrustal sequence some 2522-2551 Ma ago, followed by intrusion of granitoid rocks beginning at 2522 Ma and reaching a peak at about 2500 Ma. This was followed by high-grade metamorphism, transforming the existing rocks into granulites, charnockites and enderbites some 2485-2490 Ma ago. The intrusion of post-tectonic granites at 2472 Ma is associated with widespread metamorphic retrogression and ends the tectono-metamorphic evolution of this terrain. A similar evolutionary sequence has also been recorded in the granulite belt of Eastern Hebei Province. We speculate that the Jianping Complex was part of an active continental margin in the late Archaean that became involved in continental collision and crustal thickening shortly after its formation. There is a remarkable similarity between the similar to 2500 Ma North China granulite belt and the equally old granulite bell of Southern India, suggesting that the two crustal domains could have been part of the same active plate margin in latest Archaean times. (C) 1998 Elsevier Science Ltd. All rights reserved.Geosciences, MultidisciplinarySCI(E)50ARTICLE5-6519-5321
A Semiautoregression Approach to the Arbitrage Pricing Theory.
No full textThis paper develops a semiautoregression approach to estimate factors of the arbitrage pricing theory that has the advantage of providing a simple asymptotic variance-covariance matrix for the factor estimates, which makes it easy to adjust for measurement errors. Using the extracted factors, the author confirms the finding that the arbitrage pricing theory describes asset returns slightly better than the capital asset pricing model, although there is still some mispricing in the arbitrage pricing theory model. The author finds that not only are the factors priced by the market, but the factor premiums move over time in relation to business cycle variables. Copyright 1993 by American Finance Association.
Confinement effect on semiconductor nanowires properties
No full textConfinement effect on semiconductor nanowires properties.
Alexis Nduwimana
100 pages
Directed by Dr. Mei-Yin Chou
We study the effect of confinement on various properties of semiconductor
nanowires. First, we study the size and direction dependence of the band gap of
germanium nanowires. We use the density functional theory in the local density approximation. Results shows that the band gap decreases with the diameter The susceptibility of these nanowires is also computed. Second, we look at the confinement effect on the piezoelectric coefficients of ZnO and AlN nanowires. The Berry phase method is used. It is found that depending on passivation, thepiezoelectric effect can decrease or increase. Finally, we study the size and direction dependence of the melting temperature of silicon nanowires. We use the molecular dynamics with the Stillinger Weber potential. Results indicate that the melting temperature increases with the nanowire diameter and that it is direction dependent.Ph.D
Zircon U-Pb chronology of the Jianping Complex: Implications for the Precambrian crustal evolution history of the northern margin of North China Craton
No full textThe Neoarchean to Paleoproterozoic Jianping complex in the western Liaoning province is an important component of the Precambrian basement of the North China Craton. This region connects the Neoarchean Fengning-Chengde complex in the west, the Neoarchean to Paleoproterozoic North Chaoyang complex in the northeast and the Yixian-Fuxin Archean greenstone belt in the east. The Precambrian Jianping complex is dominantly composed of metamorphosed supracrustal sequence and dioritic to granitoid gneisses (tonalite-trondhjemite-granodiorite, TTG). Here we present results from LA-ICPMS zircon U-Pb isotope dating from the various lithological units in this complex, which reveal that the magmatic precursors of the metavolcanic rocks associated with the supracrustal sequence were generated during 2555-2550 Ma, and up to 2615 Ma. A major magmatic pulse of dioritic to granitic suite occurred during 2538 to 2495 Ma. This was followed by ca. 2485 Ma granulite facies metamorphism and a retrograde event at ca. 2450-2401 Ma. Our data also reveal a major charnockite emplacement event in this region at ca. 1694 Ma. Integrating our new results with the available geologic and previous geochronological data, we identify three major growth stages in the crustal evolution history of the northern margin of the Eastern Continental Block of the North China Craton at ca. 2550-2495 Ma, ca. 2403-2394 Ma, and ca.1700 Ma. The LA-ICP-MS zircon data provide new insights on the Neoarchean to Paleoproterozoic tectonothermal evolution history in the northern margin of the Eastern Continental Block of the North China Craton. (C) 2011 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000292123600005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Geosciences, MultidisciplinarySCI(E)115ARTICLE1,SI48-632
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