List of Articles راهبرد رهبری هزینه Open Access Article Abstract Page Full-Text 1 - The Study of Productivity and Cost Leadership and Differentiation Strategy Effect on Bankruptcy Risk Majid Azimi Yancheshmeh Mostafa rajabi Zoherh Mahmoud Dehnavi Open Access Article Abstract Page Full-Text 2 - The influence of competitive environment and business strategies on the relationship between firm's financial leverage and performance فرزین رضایی حامد عازم