scholarly journals Study on the Stability of an Artificial Stock Option Market Based on Bidirectional Conduction

Entropy ◽  
2013 ◽  
Vol 15 (2) ◽  
pp. 700-720 ◽  
Author(s):  
Hai-Jun Yang ◽  
Gui-Ping Sun
2008 ◽  
Vol 33 (2) ◽  
pp. 15-24 ◽  
Author(s):  
Sandeep Srivastava ◽  
Surendra S Yadav ◽  
P K Jain

The efficiency of the financial markets is important as it ensures increased productive efficiency and economic growth through better capital allocation. Price discovery is the central aspect of financial markets. The relatively efficient price signals also facilitate the participation of uninformed investors to make suitable portfolio choices. Derivative instruments like option contracts enhance informational efficiency of the underlying's market through better price discovery as these securities are expected to increase the flow of information in the market. Besides, they facilitate hedging of risk. In India, exchange-trade derivates are of recent origin in the stock market. This study investigates the significance of net open interest and trading volume in stock option and stock index option market to predict the underlying stock prices⁄index level. In the study, only 15 stock option contracts (having maturity of one-month) and Nifty options for the entire period, i.e., November 10, 2001 to November 2, 2004, have been analysed. The analysis could not be carried out for all the stocks in option segment because of the fact that the options were not traded or the trading range and volumes were too thin to justify any analysis. The major findings of the study are as follows: Net open interest of stock option is one of the significant variables in the determination of the future spot price of the underlying stock. Open interest-based predictors are statistically more significant than the volume-based predictors in the Indian context too as is the case for the US market. The trading behaviour of Indian investors is found to be different from their counterparts in the developed world. This difference can be attributed to: the nascent state of derivatives market in India extremely limited participation of institutional investors in the Indian stock derivative market because of regulatory restrictions; as such investors are allowed to use derivative securities mainly for hedging and arbitrage purposes only. The findings would definitely help the regulatory bodies in policy-making and further strengthening the efforts to promote the derivative market in India. There are many areas which are still unexplored and can be addressed by the future studies by using the intraday data and a larger sample for the stock options.


2008 ◽  
Vol 32 (1-2) ◽  
pp. 37-53 ◽  
Author(s):  
Sabrina Ecca ◽  
Michele Marchesi ◽  
Alessio Setzu

1982 ◽  
Vol 99 ◽  
pp. 605-613
Author(s):  
P. S. Conti

Conti: One of the main conclusions of the Wolf-Rayet symposium in Buenos Aires was that Wolf-Rayet stars are evolutionary products of massive objects. Some questions:–Do hot helium-rich stars, that are not Wolf-Rayet stars, exist?–What about the stability of helium rich stars of large mass? We know a helium rich star of ∼40 MO. Has the stability something to do with the wind?–Ring nebulae and bubbles : this seems to be a much more common phenomenon than we thought of some years age.–What is the origin of the subtypes? This is important to find a possible matching of scenarios to subtypes.


1999 ◽  
Vol 173 ◽  
pp. 309-314 ◽  
Author(s):  
T. Fukushima

AbstractBy using the stability condition and general formulas developed by Fukushima (1998 = Paper I) we discovered that, just as in the case of the explicit symmetric multistep methods (Quinlan and Tremaine, 1990), when integrating orbital motions of celestial bodies, the implicit symmetric multistep methods used in the predictor-corrector manner lead to integration errors in position which grow linearly with the integration time if the stepsizes adopted are sufficiently small and if the number of corrections is sufficiently large, say two or three. We confirmed also that the symmetric methods (explicit or implicit) would produce the stepsize-dependent instabilities/resonances, which was discovered by A. Toomre in 1991 and confirmed by G.D. Quinlan for some high order explicit methods. Although the implicit methods require twice or more computational time for the same stepsize than the explicit symmetric ones do, they seem to be preferable since they reduce these undesirable features significantly.


Author(s):  
Godfrey C. Hoskins ◽  
V. Williams ◽  
V. Allison

The method demonstrated is an adaptation of a proven procedure for accurately determining the magnification of light photomicrographs. Because of the stability of modern electrical lenses, the method is shown to be directly applicable for providing precise reproducibility of magnification in various models of electron microscopes.A readily recognizable area of a carbon replica of a crossed-line diffraction grating is used as a standard. The same area of the standard was photographed in Phillips EM 200, Hitachi HU-11B2, and RCA EMU 3F electron microscopes at taps representative of the range of magnification of each. Negatives from one microscope were selected as guides and printed at convenient magnifications; then negatives from each of the other microscopes were projected to register with these prints. By deferring measurement to the print rather than comparing negatives, correspondence of magnification of the specimen in the three microscopes could be brought to within 2%.


Author(s):  
E. R. Kimmel ◽  
H. L. Anthony ◽  
W. Scheithauer

The strengthening effect at high temperature produced by a dispersed oxide phase in a metal matrix is seemingly dependent on at least two major contributors: oxide particle size and spatial distribution, and stability of the worked microstructure. These two are strongly interrelated. The stability of the microstructure is produced by polygonization of the worked structure forming low angle cell boundaries which become anchored by the dispersed oxide particles. The effect of the particles on strength is therefore twofold, in that they stabilize the worked microstructure and also hinder dislocation motion during loading.


Sign in / Sign up

Export Citation Format

Share Document