نتایج جستجو برای: safety stocks

تعداد نتایج: 277839  

Journal: :Carbon Balance and Management 2008
Christopher W Woodall Greg C Liknes

BACKGROUND Coarse and fine woody debris are substantial forest ecosystem carbon stocks; however, there is a lack of understanding how these detrital carbon stocks vary across forested landscapes. Because forest woody detritus production and decay rates may partially depend on climatic conditions, the accumulation of coarse and fine woody debris carbon stocks in forests may be correlated with cl...

2009
T. Clifton Green Byoung-Hyoun Hwang Seoyoung Kim

Similarly priced stocks move together. Stocks that undergo splits experience an increase in comovement with low-priced stocks and a decrease in their comovement with highpriced stocks. Price-based comovement is not explained by economic fundamentals, firm size, or changes in liquidity or information diffusion. The shift in comovement following splits is greater for large stocks, high-priced sto...

Journal: :The Onderstepoort journal of veterinary research 1989
J L Du Plessis L Van Gas J A Olivier J D Bezuidenhout

Ten stocks of Cowdria ruminantium (Ball 3, Breed, Comoro, Germishuys, Kümm, Kwanyanga, Mali, Mara, Nonile and Welgevonden) were compared from a cross-immunity, serological and mouse pathogenicity point of view. They were found to differ in varying degrees. Except for the Ball 3, Comoro and Germishuys stocks that were similar but not identical, there was no pattern in the antigenic diversity of ...

2006
Nancy G. Leveson

FUNCTION Mass/energy flow and balance GENERAL FUNCTION Flow and storage of heat, etc. PHYSICAL FUNCTION States of components what? what? what? what? what?

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2011
Trevor A Branch Olaf P Jensen Daniel Ricard Yimin Ye Ray Hilborn

There are differences in perception of the status of fisheries around the world that may partly stem from how data on trends in catches over time have been used. On the basis of catch trends, it has been suggested that about 70% of all stocks are overexploited due to unsustainable harvesting and 30% of all stocks have collapsed to <10% of unfished levels. Catch trends also suggest that over tim...

2013
Maria Fernanda Adame J. Boone Kauffman Israel Medina Julieta N. Gamboa Olmo Torres Juan P. Caamal Miriam Reza Jorge A. Herrera-Silveira

Coastal wetlands can have exceptionally large carbon (C) stocks and their protection and restoration would constitute an effective mitigation strategy to climate change. Inclusion of coastal ecosystems in mitigation strategies requires quantification of carbon stocks in order to calculate emissions or sequestration through time. In this study, we quantified the ecosystem C stocks of coastal wet...

2009
Guangzi Li Guozheng Tang Li Liu Harold Zhang Yu-jane Liu Dehua Xiong Chao Chen Hongjun Zhu Yihui Lan Pingyang Gao Dong Luo Rong Lu Xiongguang Fu Minshan Zhou

Using a unique sample of matching stocks in China, this paper investigates the comovement between different stocks and its driving factors. Major findings include: (1) There exists a high positive correlation between returns on two matching stocks with similar ticker symbols; (2) By analyzing changes in correlation that took place after stocks changed their ticker symbols, we find that changes ...

1996
Joumana Ghosn Yoshua Bengio

Arti cial Neural Networks can be used to predict future returns of stocks in order to take nancial decisions Should one build a separate network for each stock or share the same network for all the stocks In this paper we also explore other alternatives in which some layers are shared and others are not shared When the prediction of future returns for di erent stocks are viewed as di erent task...

2015
P. K. Narayan R. Liu Paresh Kumar Narayan Ruipeng Liu

In this paper we propose a generalised autoregressive conditional heteroskedasticity (GARCH) model-based test for a unit root. The model allows for two endogenous structural breaks. We test for unit roots in 156 US stocks listed on the NYSE over the period 1980 to 2007. We find that the unit root null hypothesis is rejected in 40% of the stocks, and only in four out of the nine sectors the null...

2008
Zoran Ivkovic Clemens Sialm

This paper tests whether information advantages help explain why some individual investors concentrate their stock portfolios in a few stocks. Slock investments made by households that choose lo concentrate their brokerage accounts in a few stocks outperform those made by households with more diversified accounts (especially among those with large portfolios). Excess returns of concentrated rel...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید