energy price forecast is the key information for generating companies to prepare their bids in the electricity markets. however, this forecasting problem is complex due to nonlinear, non-stationary, and time variant behavior of electricity price time series. accordingly, in this paper a new strategy is proposed for electricity price forecast. the forecast strategy includes wavelet transform (wt...

We examine the effects of rivals’ earnings news during the waiting period of an IPO’s going public process on IPO pricing and completion decision, and investigate the implication of these effects for post-IPO operating performance. We find that a signal-to-noise measure of rivals’ earnings news has significantly negative valuation effects on both price revision and initial return for completed ...

The Ohlson model is evaluated using quarterly data from stocks in the Dow Jones Index. A hierarchical Bayesian approach is developed to simultaneously estimate the unknown coefficients in the time series regression model for each company by pooling information across firms. Both estimation and prediction are carried out by the Markov chain Monte Carlo (MCMC) method. Our empirical results show t...

This study explores the empirical relationship between stock prices and financial ratios in Bahrain Stock Exchange specifically applied on institutions listed Bourse. The results of analysis varied as follows: earning per share, return assets equity have shown positive with share price, while price to earnings ratio Financial Leverage demonstrated negative price. Finally, firm’s size which is m...

Numerous authors have suggested that the price-earnings (P/E) ratio can be used to predict the future movement of stock prices. Such arguments are based on the belief that P/E ratios are mean-reverting. But are the S&P P/E ratios really mean reverting? A review of the literature finds arguments on both sides, but the issue of mean reversion has not been tested adequately. Using unit roots and m...

Considering the importance of decision- making in investment, this study prioritizes the accepted pharmaceutical companies in Tehran stock exchange, during 2013-2017 using the following criteria: the return on investment (ROI), reminded increment (RI), return on sales (ROS) and the earnings per share (EPS). Price per earnings ratio of each share (P/E), return on equity (ROE), return on assets (...