Preface This volume contains the papers presented at CMDM 2017: The Second Work- shop on Computer Modelling in Decision Making held on November 9–10, 2017 in Saratov. The CMDM 2017 workshop brought together researchers, postgraduate stu- dents and academics interested in computer and mathematical modelling in de- cision making in different areas. The CMDM 2017 workshop’s main topic was computer and mathematical modelling in decision making in finance, insurance, banking, economic forecasting, investment and financial analysis. The workshop took place in Saratov State University (Saratov, Russia) on the 9th and 10th of November 2017 and was co-organized with the Central Bank of the Russian Federation and the Department of Statistics and Data Analysis of Higher School of Economics (Moscow, Russia). The workshop was co-located with the VI International Youth Research and Practice Conference on Mathematical and Computer Modelling in Economics, Insurance and Risk Management, Saratov, Russia, November 9–10, 2017. Thirty one papers were submitted and twenty papers were accepted for presentation at the workshop after a careful peer reviewing process with discussions among reviewers and members of the program committee. Each paper was reviewed by at least two reviewers or members of the program committee. We would like to thank all reviewers for their helpful efforts. The EasyChair system was used to manage the submissions, reviewing, and proceedings production and we would like to express our gratitude to the staff of EasyChair system for support. November 17, 2017 Abraham Althonayan Saratov Tatiana A. Belkina Vladimir S. Mkhitaryan Dmitry Pavluk Sergei P. Sidorov