Paper Title
The Ability of Accounting and Non-Accounting information in Forming of Efficient Investment portfolios. A Comparative Analysis Study On The Palestine Exchange

Abstract
The study aimed at analyzing accounting and non-accounting informationability in forming efficient investment portfolio. To achieve that twoinvestment portfolios were structured, one is of high value and the other is oflow value, based on the variable value ratios that the study representsincluding book value, return on assets, market stock prices and total riskmeasured by standard deviation during the period from 2013 to 2017 for (28)companies. The necessary data were obtained from the monthly closed pricesand the financial statements for the companies under investigation using thenecessary statistical analysis required.The most important findings in the study show that high value investmentportfolios based on return on assets can achieve better returns from marketportfolio and high value portfolios based on book value, market stock pricesand total risk measured by standard deviation. It also shows that accountinginformation based on return on assets and book value has a significant role inconstructing efficient investment portfolios and proved reliable as an indicatorof investment in the market and is better than the performance of marketportfolio and portfolios based on non-accounting information.The study recommended the necessity of relying largely on accountinginformation than non-accounting information as a basic information resourcewhen making investment decisions in Palestine exchange and the necessity ofdirecting investors in Palestine exchange to the role and significance offinancial analysis when feeling the need to construct an investment portfoliobased on accounting information and particularly return on asset. Keywords - Return on Assets, Book value, Total Risk, Stock prices,investmentportfolio