Feygenson Sofya

Education

• M.S. in Digital Humanities & Computational Social Sciences, KAIST, South Korea

Advisor : Jun Hyung Kim

• B.A. in Economics, Yonsei University (Graduated in 7 semesters)
  
  

• Exchange semester: Saint Petersburg State University (Fall 2023)

Current Projects

• "Fertility and Employment Transitions in Russia: A Hidden Markov Model Analysis"
  
  

  • Presented at: 7th RLMS-HSE User Conference (2025)
    
    

• "Understanding Korea’s Fertility Crisis: Evidence from Hidden Markov Models of Young Adulthood"
  
  

  • Presented at: Korean Population Association Spring Conference (2025)

  • Presented at: Korean Association for Public Administration International Conference (2025)

• "Energy Uncertainty and Healthcare Utilization: The Impact of Oil Price Volatility on Outpatient Visits in South Korea"

• • Presented at: Korean Society for Health Informatics and Statistics Spring Conference
    
    

• "Motivated or Demotivated? A Multichannel Hidden Markov Analysis of Korean Adolescents’ School Satisfaction, Peer Time, and Teacher Rapport"
  Sole author
  Submitted and Accepted to the 14th Korea Children and Youth Panel Survey (KCYPS) Conference
  
  

• "Unequal Costs of a Second Chance: Retaking the College Entrance Exam and Labor Market Outcomes in South Korea"
  With Komila Shernazarova and Jun Hyung Kim
  Submitted and Acceptedto the 19th KEDI Data Research Conference

• "Where Do Gaps in Youth Employment Outcomes Come From?"
  With Zhang Tongxin
  Submitted and Accepted to the 2025 KRIVET Panel Academic Conference

• "Soft Skills in an Academic Credential Society: How Non-Cognitive Skills Moderate the Returns to Literacy and Numeracy in Korea"
  With Jun Hyung Kim
  Submitted and Accepted to the 2025 PIAAC Korea Conference

Academic Awards

• 2nd Best Student Presentation, 2025 Korean Association for Public Administration International Conference

Presentation: Understanding Korea’s Fertility Crisis: Evidence from Hidden Markov Models of Young Adulthood

• Yonsei University: Outstanding International Student Scholarship, Kim Dong-jun Scholarship

Teaching

Teaching Assistantships

• Contemporary Social Theory

• Theory and Practice of Statistics for the Humanities and Social Sciences Undergraduate level

• Theory and Practice of Statistics for the Humanities and Social Sciences Graduate level 

• Core Topics in Social Sciences