List of Articles اختلاف قیمت پیشنهادی خرید و فروش Open Access Article Abstract Page Full-Text 1 - The effect of an increase in disclosure resulting from the implementation of revised accounting standards on information asymmetry H.R VAkili fard GH Talebniya مریم Naderipor Open Access Article Abstract Page Full-Text 2 - The Effect of Some Corporate Governance Tools on Information Asymmetry around Quarterly Earnings Announcement with Autoregressive Vector Model Mohsen Dastgir Javad Aghanaghi Amir Rasaiian Open Access Article Abstract Page Full-Text 3 - Using the Bid-Ask Spreads as a Proxy for Transaction Costs in adjusting the CCAPM sedighe alizadeh mohammad nabi shahiki tash reza rosahan