Xi Xiang
Xi Xiang
Success lies in trying.
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Xi Xiang

Major in Economics, minor in Computer Science and Technology, Nanjing University.

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News

  • 2025.06.23 I'm Participated in the Sichuan Admissions Team of Nanjing University.
  • 2026.04.03 Added a new economics computation report on digital skill premia.
  • 2026.04.27 Industrial Chain Network Position, Supply Chain Concentration and Enterprise Innovation Performance is reported at The Second Undergraduate Forum on New Structural Economics.
  • 2026.05.10 Industrial Chain Network Position, Supply Chain Concentration and Enterprise Innovation Performance is reported at Final Round of the 37th Silver Star Cup Undergraduate Academic Paper Competition.

Personal Background

I am an undergraduate researcher at Nanjing University, with interests at the intersection of economics, data science, and digital economy.

My current work focuses on empirical analysis, causal inference, and policy-relevant questions in labor, education, and industrial development.

Affiliation

  • University: Nanjing University (NJU)
  • School: School of Business, Department of Economics
  • Mentor: Professor Pi Jiancai
  • Research Assistant to: Professor Shen Haopeng

Education

  • Major: Economics
  • Minor: Computer Science and Technology
  • Period: Sep 2023 - Present

Research Interests

  • Machine learning and data mining for econometric causal inference
  • Digital economy: new mechanisms and policy implications
  • Labor and education economics in micro-empirical settings

Papers

Digital Skill Premia, Structural Polarization and Skill Complementarity: Evidence from Chinese Listed-Firm Job Postings, 2016-2025

Independent Research Project: XIANG Xi

Paper | Report (ZH) | Report (EN)

  • Uses 6.9 million job postings from Chinese listed firms between 2016 and 2025 to trace the evolution of digital-skill demand, wage premia, and structural polarization in the labor market
  • Combines structured NLP-based skill extraction with annual wage regressions, quantile regressions, and concentration measures to show time-varying AI/ML premia, sub-additive skill complementarity, and persistent upper-tail wage inequality amid broad skill diffusion | Apr 2026

Opening Doors, Widening Gaps? The Distributional and Intergenerational Effects of China's Higher Education Expansion

Team Member: XIANG Xi

Paper | Report (ZH) | Report (EN)

  • Examines the distributional and intergenerational effects of China's higher education expansion, with heterogeneous impacts across urban-rural and parental-background dimensions
  • Uses CFPS 2022 microdata and combines regression discontinuity with difference-in-differences to identify policy effects and assess robustness | Feb 2026
  • Awarded Third Prize - The 37th "Silver Star Cup" undergraduate academic paper competition | May 2026

The Relationship between Industrial Chain Network Position, Supply Chain Concentration and Enterprise Innovation Performance

Team Member: XIANG Xi

Paper | Report (ZH)

  • Investigates how firms' positions in industrial chain networks affect innovation performance and how supply chain concentration moderates this relationship
  • Constructs a directed weighted industrial chain network and applies panel fixed-effects models, heterogeneity analysis, and link-prediction-based extensions | Feb 2026
  • This paper is reported at The Second Undergraduate Forum on New Structural Economics(2026.04.27)
  • This paper is reported at Final Round of the 37th Silver Star Cup Undergraduate Academic Paper Competition(2026.05.10)

The Return Rate Trend and Professional Heterogeneity of Higher Education in China

Team Members: XIANG Xi and GUI Yuhe

Link

  • Studies temporal changes in returns to higher education and major-specific heterogeneity in labor market outcomes in China
  • Combines structured literature review with an extended Mincer earnings framework to compare return patterns across disciplines | In Progress (Spring 2025)

The Mechanism and Heterogeneity of the Impact of Digital Trade on the Quality of Employment in China

Team Members: XIANG Xi, WU Haomin and FAN Jincheng

Link

  • Evaluates the impact of digital trade on employment quality and tests transmission channels through consumption, education investment, and skill structure
  • Builds hierarchical regression specifications and applies entropy-weight index construction, instrumental-variable estimation, and multiple robustness checks
  • Awarded Third Prize - The 36th "Silver Star Cup" undergraduate academic paper competition | May 2025

Crisis Management in Stigmatized Industries

Team Members: AI Peiyuan, XIANG Xi, YIN Tao, XU Fanjiahui

Link

  • Analyzes crisis-response strategies in stigmatized industries using China's convenience food sector as a case study
  • Awarded First Prize - 27th Forum of Science & Arts at Nanjing University (Freshman Division) | May 2024

Survey Reports