Dynamic Regulation with Firm Linkages: Evidence from Texas

Key findings from this study

• The study found that linked environmental regulation in Texas substantially improved enforcement efficiency compared to both unlinked and untargeted regulatory approaches.
• The researchers demonstrate that firm-wide moral hazard mechanisms account for a large portion of linked regulation's performance benefits.
• The authors report that regulators can effectively target scarce enforcement resources toward non-compliant firms without inspecting all facilities when compliance costs correlate across a firm's operations.

Overview

This study evaluates dynamic linked environmental regulation in Texas, wherein violations discovered at one facility owned by a particular firm trigger increased future enforcement scrutiny at other facilities in that firm's portfolio. The research develops an empirical framework addressing dynamic moral hazard under linked regulation with large plant portfolios and interdependent compliance choices across facilities and time periods.

Methods and approach

The authors construct an empirical framework accommodating large portfolios of plants with interdependent choices within portfolios and across temporal dimensions. The framework models dynamic moral hazard under linked regulatory schemes. The researchers use this framework to evaluate a specific linked regulation policy implemented in Texas, comparing its performance against unlinked and untargeted regulatory approaches.

Results

Linked regulation substantially outperforms both unlinked and untargeted regulation in enforcement efficiency. The study identifies two potential mechanisms driving linked regulation benefits: a firm-wide moral hazard mechanism and a correlated targeting mechanism. Empirical analysis demonstrates that firm-wide moral hazard accounts for a large share of linked regulation's value, indicating that ownership linkages meaningfully alter firm compliance incentives across multiple facilities.

Implications

Linked regulation enables regulators to allocate scarce inspection resources toward entities exhibiting systematic non-compliance patterns without conducting comprehensive facility inspections. By leveraging information about violations at one facility to inform enforcement decisions across an owner's broader portfolio, agencies can achieve efficiency gains under resource constraints. This approach proves particularly effective when compliance costs exhibit correlation across facilities within a firm's operations.

The predominance of the firm-wide moral hazard mechanism suggests that firm-level ownership structures create meaningful behavioral responses to enforcement. Firms modify compliance practices across their entire portfolio when violations surface at any single facility, enabling regulators to influence aggregate compliance through targeted enforcement actions. This finding has direct relevance for regulatory design in industries with multi-facility firm structures.

The superior performance of linked regulation indicates that regulatory frameworks should incorporate information networks reflecting firm ownership and control. Regulators managing fragmented portfolios across multiple facilities benefit from enforcement mechanisms that exploit these structural relationships. Future regulatory improvements may extend linked approaches to other contexts where facility ownership concentrates compliance decision-making at firm levels.

Scope and limitations

This summary is based on the study abstract and available metadata. It does not include a full analysis of the complete paper, supplementary materials, or underlying datasets unless explicitly stated. Findings should be interpreted in the context of the original publication.