The purpose of this study is to optimize the stock price forecasting model with meta-innovation method in pharmaceutical companies.In this research, stock portfolio optimization has been done in two separate phases.The first phase is related to forecasting stock futures based on past stock information, which is forecasting the stock price using artificial neural network.The neural network used ...

Stock return is usually considered to be affected by firm’s financial ratios as well as economic variables. Fundamental method assume that stock returns is not solely related to the stock market. Most result come from the company condition , industry situation and whole economy. In this paper, this relationship between stock return and fundamentals is studied using the data for 22 pharmaceutica...

This paper studies the link between population age structure, net outflows (dividends plus repurchases less net issues) from the stock market, and stock market returns in an overlapping generations framework. I find support for the traditional lifecycle models — the outflows from the stock market are positively correlated with the changes in the fraction of old people (65 and over) and negative...

The problem of stock data analysis has been widely researched by stock analysts interested in detecting patterns in stocks. Resulting algorithms have dealt with many representations of stock data depending on the problem, many dealing with complex cases where patterns in stock data need to be matched despite differences in scale, translation, or noisiness. However, specific instances arise wher...

During 1999-2001 more than 35 million messages about public firms were posted on Yahoo! Finance. This paper examines whether stocks with high posting levels also have unusual subsequent returns and/or risk. They do. Stocks with the highest level of posting have unusually high realized volatility and unusually poor subsequent returns. This remains true after accounting for the effects of the mar...

Stock price crash risk has a significant impact on investors, creditors, managers, and shareholders, so the prediction of this phenomenon is a very important issue in investment and risk management decisions. This research investigates the effect of business strategy and stock price synchronicity on stock price crash risk. Following Bentley et al.[2], composite strategy score has been used to ...

Clinical isolates (869) and stock cultures (35) of Enterobacteriaceae were tested in parallel with the Minitek and conventional systems. The Minitek correctly identified 822 of 904 cultures. When a deoxyribonuclease plate was inoculated along with the Minitek, it was possible to speciate Enterobacteriaceae within 24 h. False-positive hydrogen sulfide reactions were the major fault with this sys...

A clinical isolate of Brucella melitensis was detected in a blood culture with the BACT/ALERT after an incubation period of 2.8 days. Dilution studies revealed an inverse linear relationship between the log of the initial concentration of the organism and the time to detection of a positive result. Reproducibility studies demonstrated a mean detection time of 48 +/- 1 h in 8 of 10 replicates se...

Stock loan is different from the traditional loan, it needs to be collateralized by stock. Fairly valuing stock loan is very important for financial market participants. The main contribution of this paper is to give a valuing method of stock loan in uncertain environment. Under the assumption that the underlying stock price follows an uncertain mean-reverting stock model, the price formulas of...

Robert B. Bourret, Nyles W. Charon, Ann M. Stock,* and Ann H. West Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, North Carolina 27599-7290; Department of Microbiology and Immunology, Health Sciences Center, West Virginia University, Morgantown, West Virginia 26506-9177; UMDNJ-Robert Wood Johnson Medical School and Howard Hughes Medical Institute, Piscataw...