List of Articles Panel Smooth Transition Regression Open Access Article Abstract Page Full-Text 1 - Evaluation of the performance of investment funds in the capital market of Iran: A panel smooth transition regression approach Mohammad javad Farhang hashem valipour M. Reza Setayesh seyyed jamaludin tabibi Open Access Article Abstract Page Full-Text 2 - Investigating the Threshold Impact of Country Risk Index on the Impact of Public Debt on Economic Growth: Panel Smooth Transition Regression (PSTR) Approach javad harati Nesa Kamalian elham bita