Recently, Wuhan University Economics and Management School Associate Professor Ding Yucheng's research group published paper titled Search and Competition in Expert Marketsin international economics top journal Rand Journal of Economics.

Research Focus: Expert markets' dual information asymmetry issues. Expert markets feature sellers (experts) having information advantage over buyers (consumers), with motivation for "over-treatment" to increase profits.

Key Findings:

1. Experts do deceive consumers in equilibrium under incomplete competition markets

   
   

2. When search costs moderate, counterintuitive result appears: "search costs decrease, market transparencyincreases, expert deception behaviors intensify"

   
   

3. When search costs sufficiently low, expert competition effectively curbs over-treatment behaviors

   
   

Contributions:

Theoretical: Characterizes search in credence goods markets, expanding traditional consumer sequential search literature

Practical: Helps market participants and policymakers better understand expert markets decision mechanisms

Journal Significance: Rand Journal of Economicsranks #1 international journal in industrial organization theory, widely recognized as top-tier journal globally. Annual publication approximately 35 papers; mainland institutions historically published ~30 papers. This is first paper published in this journal with Wuhan University affiliation, achieving zero breakthrough for university.

Authors: Wuhan University Ding Yucheng (co-first author), Cao Yiran (Jinan University), Chen Yongmin (University of Colorado Boulder), Zhang Tianle (Hong Kong Lingnan University)

Funding: Supported by National Natural Science Foundation Youth Project, Major Project, and Hong Kong Research Grants Council General Project.