Reducing information asymmetry in the power industry: Mandatory and voluntary information disclosure regulations of sulfur dioxide emission

Research output: Contribution to journalArticle


This paper focuses on the institutional framework for sulfur dioxide emission information disclosure (SDEID) in power industries. The authors argue that mandatory and voluntary SDEID are two complementary regulatory instruments for emission reduction in the power industry. An analytical framework of SDEID with six facets is suggested in this paper to demonstrate relevant legal provisions and regulatory policies of mandatory and voluntary SDEID of power industries in the US. Empirical research shows that mandatory and voluntary SDEID of the power industry have been regulated simultaneously in the US. The foundation of power companies' willingness to disclose emission information voluntarily is the combination of mandatory scientific monitoring with market regulation in the current SDEID system in the US. In comparison, the SDEID of power industries has yet to be widely implemented in developing countries. Finally, the paper provides some implications to developing countries that plan to learn institutional arrangements from developed countries. (C) 2012 Elsevier Ltd. All rights reserved.


  • Xufeng Zhu
  • Chao Zhang
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Social Sciences Interdisciplinary


  • Power industry, Mandatory and voluntary information disclosure, Sulfur, dioxide emission
Original languageEnglish
Pages (from-to)704-713
JournalEnergy Policy
Publication statusPublished - 2012
Publication categoryResearch