When Sell-Side Analysts Meet High-Volatility Stocks: An Alternative Explanation for the Low-Volatility Puzzle

Author(s):  
Jason C. Hsu ◽  
Hideaki Kudoh ◽  
Toru Yamada
Author(s):  
Eva Horvath ◽  
Kalman Kovacs ◽  
B. W. Scheithauer ◽  
R. V. Lloyd ◽  
H. S. Smyth

The association of a pituitary adenoma with nervous tissue consisting of neuron-like cells and neuropil is a rare abnormality. In the majority of cases, the pituitary tumor is a chromophobic adenoma, accompanied by acromegaly. Histology reveals widely variable proportions of endocrine and nervous tissue in alternating or intermingled patterns. The lesion is perceived as a composite one consisting of two histogenetically distinct parts. It has been suggested that the neuronal component, morphologically similar to secretory neurons of the hypothalamus, may initiate adenoma formation by releasing stimulatory substances. Immunoreactivity for growth hormone releasing hormone (GRH) in the neuronal component of some cases supported this view, whereas other findings such as consistent lack of growth hormone (GH) cell hyperplasia in the lesions called for alternative explanation.Fifteen tumors consisting of a pituitary adenoma and a neuronal component have been collected over a 20 yr. period. Acromegaly was present in 11 patients, was equivocal in one, and absent in 3.


2003 ◽  
Vol 70 (1) ◽  
pp. 1-1 ◽  
Author(s):  
Michael Pfau ◽  
David Roskos-Ewoldsen ◽  
Michelle Wood ◽  
Suya Yin ◽  
Jaeho Cho ◽  
...  

Author(s):  
Don van Ravenzwaaij ◽  
Han L. J. van der Maas ◽  
Eric-Jan Wagenmakers

Research using the Implicit Association Test (IAT) has shown that names labeled as Caucasian elicit more positive associations than names labeled as non-Caucasian. One interpretation of this result is that the IAT measures latent racial prejudice. An alternative explanation is that the result is due to differences in in-group/out-group membership. In this study, we conducted three different IATs: one with same-race Dutch names versus racially charged Moroccan names; one with same-race Dutch names versus racially neutral Finnish names; and one with Moroccan names versus Finnish names. Results showed equivalent effects for the Dutch-Moroccan and Dutch-Finnish IATs, but no effect for the Finnish-Moroccan IAT. This suggests that the name-race IAT-effect is not due to racial prejudice. A diffusion model decomposition indicated that the IAT-effects were caused by changes in speed of information accumulation, response conservativeness, and non-decision time.


1991 ◽  
Author(s):  
Martha J . Farah ◽  
Randall C. O'Reilly ◽  
Shaun P. Vecera

Author(s):  
Ryan Littlewood ◽  
A. Brad Murray ◽  
Andrew D. Ashton

2019 ◽  
Vol 118 (7) ◽  
pp. 161-165
Author(s):  
Cyano Prem ◽  
Dr M. Babu ◽  
C. Hariharan ◽  
R. Muneeswaran

Any new information about the economy is transmitted fast and it may influence the financial markets, positively or negatively. The present study used GARCH (1, 1) and EGARCH models, to investigate the volatility of Indian banking sectors indices, namely, Nifty PSU Index and Nifty Private Bank Index of NSE India Ltd. The result of the study confirmed that the high volatility was found in both the bank indices. At the same time, negative information about Indian economics did affect the PSU and Private Bank Sector indices during the study period. Finally, the study concluded that bad news travels fast and it increased volatility more than good. Hence the Government should give more information and awareness programme to the people before the implementation of any economic policy.


2016 ◽  
pp. 26-46
Author(s):  
Marcin Jan Flotyński

The global financial crisis in 2007–2009 began a period of high volatility on the financial markets. Specifically, it caused an increased amplitude of fluctuations of the level of gross domestic products, the level of investment and consumption and exchange rates in particular countries. To address the adverse market circumstances, governments and central banks took actions in order to bolster the weakening global economy. The aim of this article is to present the anti-crisis actions in the United States and selected member states of the European Union, including Poland, and an assessment of their efficiency. The analysis conducted indicates that generally the actions taken in the United States in response to the crisis were faster and more adequate to the existing circumstances than in the European Union.


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