List of Articles Open Access Article Abstract Page Full-Text 1 - Designing a fuzzy inference system to choose the product portfolio of pharmaceutical Mohamadali Afsharkazemi Ali Barkhordari Open Access Article Abstract Page Full-Text 2 - Investigating the Impact of Organizational Black Holes on Employee Performance in Government Agencies Azam Sanaei Meysam Sanaei Open Access Article Abstract Page Full-Text 3 - Sustainable Management in the Age of Instability: An Approach Based on the Nonlinear Impact Weighted Scale System Method and the Fuzzy Best-Worst Method farnaz sajjadian Open Access Article Abstract Page Full-Text 4 - Identifying affecting factors on business performance through mediating role of competitive strategies Mojtaba Lati Parisa Daneshmand Fard