Antitrust law
Practical tips for counsel advising clients on responding to market studies and voluntary information requests from competition authorities.
This evergreen guide provides practical, field-tested strategies for lawyers guiding clients through market studies and voluntary information requests from competition authorities, with emphasis on compliance, risk management, and strategic communication.
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Published by Thomas Scott
August 08, 2025 - 3 min Read
When counsel prepares a client for a market study or voluntary information request, the first step is to map the authority’s mandate and the scope of the inquiry. Understanding which data are truly relevant protects the client from over-collection and unnecessary disclosure. A practical approach is to develop a data inventory that aligns with the study’s terms of reference while identifying legally protected materials. This helps to avoid inadvertent disclosures and sets a baseline for redaction where appropriate. It also clarifies what is genuinely requested versus what might be offered as a courtesy. Clear internal ownership and a timeline underpin efficient, compliant responses.
In assessing potential risks, counsel should evaluate whether information may reveal sensitive competitive insights or strategic intent. Early risk analysis should consider privilege, confidentiality, and the possible creation of implications for future enforcement. Organizations frequently underestimate how even seemingly benign data can expose market power dynamics or coordination patterns. Establish a filtering regime to separate commercially sensitive documents from routine records, and prepare a privilege log that documents the decision to withhold or redact. A careful balance between transparency and protection reinforces credibility with the authority without compromising legitimate business interests.
Structured planning and disciplined communication optimize responsiveness and trust.
A disciplined data collection plan should specify the custodians, data types, formats, and time frames that are truly necessary for the study. Working from the study’s terms of reference, requesters and counsel can agree on a phased approach that minimizes disruption and avoids duplicative submissions. The plan should also cover practicalities such as secure transmission methods, access controls, and retention policies. In addition, consider guidance on metadata, search terms, and potential limitations that might affect data interpretation. A well-constructed plan reduces back-and-forth and strengthens the integrity of the response.
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Communication with the competition authority should be professional, precise, and timely. Drafting a cover letter that summarizes the scope, methodology, and key data categories helps authorities quickly assess compliance. Throughout the process, maintain a clear record of all contacts, submissions, and any requests for clarification. If questions arise about specific documents, propose a narrow and well-justified response rather than broad, sweeping disclosures. Establish a point of contact within the client’s organization who can coordinate responses and resolve ambiguities efficiently, preserving consistency across submissions.
Defensible search, sampling, and documentation support credible engagement with authorities.
Privilege management begins with a robust internal framework. Identify which communications and documents are protected by attorney-client privilege or work-product doctrine before any disclosure occurs. Implement a privilege-scope policy that trains teams to segregate privileged material from non-privileged items. If a document contains both privileged and non-privileged content, consider redaction strategies that preserve privilege while providing useful information to the authority. Whenever possible, provide a concise non-privileged summary to accompany redacted materials. This approach demonstrates control and reduces the risk of inadvertently waiving protections.
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A critical element of handling voluntary information requests is the articulation of search terms and sampling methods. Develop defensible, objective criteria for selecting documents, with particular attention to timeframes, market segments, and organizational roles. Document the rationale for each term and the boundaries of the search, including any exclusions. Consider running a delta-find or phased search to identify newly responsive material if the study scope expands. Transparent procedures help the authority understand the basis of the disclosures and support the client’s narrative about market behavior.
Training and consistency reduce errors and maintain credibility under scrutiny.
Beyond documents, counsel should address data privacy and employment concerns that may arise in the disclosed materials. Market studies can intersect with personal data or sensitive employment information, triggering privacy laws and sector-specific restrictions. Draft a privacy impact assessment that highlights lawful grounds for processing, data minimization, and retention limits. If necessary, obtain consent or rely on statutory exemptions while ensuring that any cross-border transfers comply with applicable data protection regimes. A proactive privacy stance reassures regulators and reduces the likelihood of friction or subsequent inquiries.
Training and awareness are essential to maintain consistency across multiple teams handling the request. Provide practical briefing sessions for legal, compliance, and business units so they understand the scope, the do’s and don’ts, and the rationale behind redactions. Create quick-reference guides or checklists that staff can consult when they encounter unfamiliar documents. Encourage staff to document decisions and to flag any ambiguities promptly. A culture of disciplined compliance minimizes missteps and fosters a cooperative posture with the authority.
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Persistent documentation and governance prevent disputes and improve outcomes.
When responding, consider offering a staged submission that meets the core requirements first, followed by a more detailed tranche if necessary. A phased approach can help the authority quickly verify essential compliance while giving the client time to assemble more complex or sensitive data. Include a concise executive summary that highlights the methodology, key data categories, and any limitations. This strategy communicates competence and reduces the risk of misinterpretation by the agency, while maintaining the client’s control over the disclosures.
Throughout the process, keep a meticulous audit trail. Record every decision, the rationale behind redactions, and any communications with the authority. An auditable record is invaluable if the study progresses to formal investigation or if challenges to the submission arise later. It also assists in internal governance reviews and future responses to similar inquiries. A transparent, well-documented workflow signals confidence, reduces dispute potential, and supports a smoother regulatory relationship over time.
After the submission, anticipate follow-up requests and prepare a response playbook. Authorities may seek clarifications, supplementary analyses, or corrected data. Develop predefined templates for common questions while preserving the flexibility to tailor responses to specifics. Assign responsibility for monitoring the inquiry’s evolution and for coordinating any revised materials. A proactive stance reduces delays and demonstrates ongoing engagement. It also helps ensure that any new data introduced does not undermine previously disclosed information or strategic positions.
Finally, reflect on lessons learned to strengthen future counseling. Conduct a post-submission debriefing with the client’s team to identify improvements in data handling, privilege management, and stakeholder communication. Translate those insights into updated procedures and training modules. Regularly revise policies to align with evolving competition law standards and enforcement practices. By institutionalizing continuous improvement, counsel can deliver steadier guidance to clients during market studies and voluntary information requests, protecting business interests while sustaining regulatory confidence.
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