Transparency, Trading Information and Price Discovery: Evidence from an Emerging Stock Market

Authors

  • Shih-Ping Chang National Kaohsiung University of Science and Technology
  • Cheng-Huei Chiao Missouri Western State University
  • Chiou-Fa Lin National Formosa University

DOI:

https://doi.org/10.47941/ijf.3402

Keywords:

Transparency, WPC, WPCT, Price Discovery

Abstract

Purpose: This study examines the effects of an incremental transparency event on the trading information and price discovery.

Methodology: The weighted price contribution (WPC) and the weighted price contribution per trade (WPCT) are used to measure trading information; the methodology of Hasbrouck(1991b) is applied in measuring price discovery.

Findings: We compile evidence that the transparency event prevents price manipulation especially at the last trading interval for large firms, raises private information ratio and reduces public information ratio by impounding more trade-related component into price for all sized firms.

Unique Contribution to Theory, Practice and Policy: We investigate the effects of a higher post-trade transparency, using the same stocks in the same market structure. This study provides a complement to the existing post-trade transparency literature. The implications of our results are that the transparency event is helpful for market fairness, efficient market and price discovery.

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Author Biographies

Shih-Ping Chang, National Kaohsiung University of Science and Technology

PhD Candidate

Cheng-Huei Chiao, Missouri Western State University

Professor: Craig School of Business

Chiou-Fa Lin, National Formosa University

Professor: School of management

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Published

2025-12-24

How to Cite

Chang, S.-P., Chiao, C.-H., & Lin, C.-F. (2025). Transparency, Trading Information and Price Discovery: Evidence from an Emerging Stock Market. International Journal of Finance, 10(8), 90–108. https://doi.org/10.47941/ijf.3402

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