fa تحقیق در عملیات Operations Research پژوهشي Research <span lang="TR" style="font-size:11.0pt"><span style="line-height:107%"><span calibri="" style="font-family:">The Coronavirus Disease 2019 (COVID-19) epidemic in China has been controlled periodically. However, we are now in a period of rapid outbreaks worldwide, the situation of epidemic prevention and control in all countries is still tense. Due to the COVID-19 outbreak, objectively, international trade has a higher risk of infection. At this stage, the prevention and control of the epidemic have become a responsibility for the countries worldwide. This study aims to measure the potential economic impacts of COVID-19 on trade volume between China and One Belt One Road countries (OBOR). The economic impacts assessments of (COVID-19)</span></span></span> <span lang="TR" style="font-size:11.0pt"><span style="line-height:107%"><span calibri="" style="font-family:">on trade are based on a Gravity model and speed of convergence (SC) method by changes in trading behavior and cost of (COVID -19) outbreak by in affected countries. The results reveal that potential trade values between China and European Union (EU) will drop by 11.5%, China and East Asia and Pacific (EAP) by 6,7%, China and the Middle East and North Africa (MENA) by 8.9%, China and South Asia (SAR) by15%, China and Europe and Central Asia (ECA) by 9%.</span></span></span> OBOR Countries, COVID-19, Gravity Model, Freight Cost. 1 16 http://ijiepr.iust.ac.ir/browse.php?a_code=A-10-2411-1&slc_lang=fa&sid=1 Abd Alwahed Dagestani a.a.dagestani@csu.edu.cn 180031947532846009382 180031947532846009382 Yes School of Business, Central South University, Changsha, 4100083, PR China.