First Author vs. Corresponding Author

By Dr. Zubair Khalid, DVM, MS, PhD · 2026-08-28

Quick Answer

• The first author leads the research work and manuscript preparation, while the corresponding author handles submission, peer review, and post-publication communication.
• Decide authorship roles at project start and confirm them in writing to prevent disputes and ensure proper credit allocation.
• Institutional policies and journal requirements vary, so check both before finalizing authorship agreements.

Understanding First Author and Corresponding Author Roles

Academic publishing assigns specific responsibilities to different author positions. The first author and corresponding author serve distinct functions in the research lifecycle, from project conception through publication and beyond. Researchers who understand these roles can allocate credit appropriately and avoid common authorship conflicts.

The first author typically contributes the most substantial intellectual and practical work to a study. This person often designs experiments, collects and analyzes data, and drafts the manuscript. In many fields, the first author position signals primary ownership of the research presented.

The corresponding author acts as the central point of contact between the journal and the research team. This individual handles manuscript submission, responds to reviewer comments, and communicates with editors throughout the peer review process. After publication, the corresponding author receives reader inquiries and manages any corrections or retractions.

These roles sometimes overlap when one person serves as both first and corresponding author. However, in collaborative projects with multiple contributors, the roles usually fall to different individuals based on their specific contributions and career needs.

Core Principles of Authorship

Authorship decisions carry ethical weight because they determine who receives professional credit for research output. The Committee on Publication Ethics Core Practices establishes expectations for authorship determination, including requirements that all listed authors make substantial contributions and take responsibility for the work.

Substantial Contribution Requirements

Authorship should reflect meaningful intellectual input instead of peripheral involvement. Individuals who conceive the study, design experiments, interpret data, or draft critical manuscript sections typically qualify for authorship. Those who provide routine technical support, collect data without interpretation, or supervise without intellectual contribution may not meet authorship thresholds.

Journals increasingly require authors to document their specific contributions. Many use contribution statements that list each author's role in conceptualization, methodology, investigation, writing, and other research activities. These statements promote transparency and help readers understand who did what.

Accountability and Responsibility

All listed authors share responsibility for the accuracy and integrity of the published work. The Committee on Publication Ethics Core Practices emphasizes that authors must be able to identify their contributions and take public responsibility for them. This accountability extends to data handling, ethical compliance, and response to post-publication concerns.

Corresponding authors carry additional responsibility for ensuring all co-authors approve the final manuscript version and agree to its submission. They also coordinate responses to reviewer feedback and manage any required revisions.

First Author Responsibilities

The first author position carries the heaviest workload in most research projects. This role typically involves leading the research activities and producing the initial manuscript draft.

Research Leadership

First authors usually drive the day-to-day research process. They design experiments, troubleshoot problems, and make adjustments when initial approaches fail. In laboratory settings, first authors often spend the most time at the bench or in the field collecting data. In clinical research, they may coordinate patient recruitment and data collection across multiple sites.

This leadership extends to data management. First authors typically organize raw data, maintain analysis files, and ensure that results can be reproduced. The NIH Data Management and Sharing Policy outlines expectations for data preservation and sharing that first authors often implement in practice.

Manuscript Preparation

First authors draft the manuscript, which means they synthesize the research question, methods, results, and interpretation into a coherent narrative. This drafting process requires deep familiarity with every aspect of the study. First authors also prepare figures, tables, and supplementary materials that support the main text.

The drafting responsibility includes selecting appropriate reporting guidelines. The EQUATOR Network maintains a comprehensive collection of reporting guidelines that help authors present their work transparently. First authors should identify the relevant guideline for their study type and follow it throughout manuscript preparation.

Corresponding Author Responsibilities

The corresponding author manages the publication process from submission through final acceptance and beyond. This role requires organizational skill, responsiveness, and the ability to coordinate multiple contributors.

Submission and Peer Review Management

Corresponding authors prepare submission materials, including cover letters and required declarations. They upload manuscript files, figures, and supplementary data to journal systems. During peer review, they receive reviewer comments and coordinate responses from the full author team.

The Committee on Publication Ethics Core Practices addresses peer review expectations, including fair and timely responses to reviewer feedback. Corresponding authors must ensure that revisions address reviewer concerns and that resubmitted manuscripts include all required changes.

Post-Publication Communication

After acceptance, corresponding authors handle proof review and coordinate any corrections. They respond to reader inquiries about the published work and manage requests for data or materials. If concerns arise about the published research, the corresponding author coordinates the author team's response.

Corresponding authors also manage the administrative aspects of publication, including copyright agreements, open access decisions, and any required data availability statements. These responsibilities require careful attention to journal policies and funder requirements.

Career Impact and Visibility Differences

First and corresponding authorship carry different weight in academic evaluation, hiring, and promotion decisions. Understanding these differences helps researchers plan their publication strategies.

First Author Recognition

First authorship signals primary intellectual ownership of the research. In many fields, particularly the sciences, first author publications serve as key evidence of independent research capability. Graduate students and postdoctoral researchers typically need first author papers to demonstrate their readiness for faculty positions or independent fellowships.

Search committees and promotion panels often count first author publications separately from other authorship positions. A strong first author record indicates that a candidate can conceive, execute, and communicate research independently.

Corresponding Author Recognition

Corresponding authorship signals leadership of the research group or project. In many fields, the corresponding author is the principal investigator who secured funding and supervised the work. This position carries weight in evaluations of research independence and group leadership.

Some institutions and funding agencies treat corresponding authorship as equivalent to senior authorship. The NIH Grants and Funding resources describe how investigators document their research contributions in grant applications, where corresponding authorship often demonstrates sustained research leadership.

Field-Specific Variations

Different disciplines assign different meanings to authorship positions. In some fields, the last author position carries senior status. In others, corresponding authorship alone signals the principal investigator role. Researchers should learn the conventions in their specific field and institution.

These variations mean that authorship decisions require field-specific knowledge. A position that signals seniority in one discipline may carry different meaning in another. Researchers should discuss these conventions with mentors and colleagues before finalizing authorship arrangements.

At a Glance

Negotiating Authorship Roles Early

Authorship disputes often arise when roles are not clarified at project start. Early negotiation prevents misunderstandings and ensures that all contributors understand their expected contributions and credit.

Initial Project Discussions

Research teams should discuss authorship before significant work begins. These discussions should cover who will serve as first author, who will serve as corresponding author, and what contributions will be required for authorship. Teams should also agree on how authorship might change if the project evolves.

The Committee on Publication Ethics Core Practices emphasizes that authorship decisions should be based on substantial contributions instead of position, seniority, or funding. Early discussions help ensure that authorship reflects actual work instead of assumptions.

Written Agreements

Written authorship agreements provide protection against later disputes. These agreements should document the planned author order, each author's expected contributions, and the process for resolving disagreements. While not legally binding in most contexts, written agreements clarify expectations and provide reference points for discussion.

Agreements should include provisions for handling unexpected situations, such as a first author leaving the project or a contributor failing to complete assigned work. Teams should also discuss how to handle contributions that exceed or fall short of initial expectations.

Ongoing Communication

Authorship arrangements should be revisited as projects progress. Research often evolves in unexpected directions, and contributions may shift accordingly. Regular check-ins allow teams to adjust authorship plans when warranted.

If a contributor's role changes substantially, the team should discuss whether authorship order or inclusion should change. These conversations are often difficult but prevent larger conflicts later.

Practical Implementation Steps

Researchers can follow a structured process to establish clear authorship roles and avoid common problems.

Step 1: Identify All Contributors

List everyone who will contribute to the project, including those who may qualify for authorship and those who will provide support without authorship. This list should include researchers, technicians, statisticians, and others who may contribute substantially.

Step 2: Define Contribution Expectations

For each potential author, specify the expected contributions. Use categories such as study design, data collection, data analysis, manuscript drafting, and critical revision. The EQUATOR Network provides guidance on transparent reporting that can inform contribution discussions.

Step 3: Assign Author Order

Determine the author order based on the relative significance of contributions. The first author position should go to the person making the most substantial intellectual and practical contributions. The corresponding author should be someone who can manage the publication process effectively.

Step 4: Document the Agreement

Create a written record of the authorship plan. Include the planned author order, each author's expected contributions, and the process for addressing changes. Share this document with all contributors and update it as the project evolves.

Step 5: Review Before Submission

Before manuscript submission, review the authorship plan against actual contributions. Confirm that all listed authors approve the manuscript and agree to its submission. The corresponding author should verify that all co-authors have seen and approved the final version.

Records and Measurements

Maintaining clear records of contributions supports authorship decisions and helps resolve disputes if they arise.

Contribution Documentation

Research teams should document each contributor's activities throughout the project. This documentation can include laboratory notebooks, data analysis logs, meeting notes, and email correspondence. The NIH Data Management and Sharing Policy provides context for documenting data-related contributions.

Author Contribution Statements

Many journals require author contribution statements that specify each author's role. These statements serve as formal records of who did what. The Committee on Publication Ethics Core Practices supports transparent authorship practices that include clear contribution documentation.

ORCID Records

Researchers should maintain accurate ORCID for Researchers records that reflect their authorship positions. ORCID provides a persistent digital identifier that links researchers to their publications. Accurate ORCID records help researchers track their publication history and demonstrate their contributions to evaluators.

Common Failure Patterns

Understanding typical authorship problems helps researchers avoid them.

Ghost Authorship

Ghost authorship occurs when someone who made substantial contributions is not listed as an author. This problem often arises when contributors are overlooked or when authorship decisions are made without full information. The Committee on Publication Ethics Core Practices addresses the ethical obligation to include all who qualify for authorship.

Gift Authorship

Gift authorship occurs when someone who did not make substantial contributions is listed as an author. This practice often results from pressure to include senior colleagues or to inflate publication counts. Gift authorship misrepresents contributions and can create accountability problems if questions arise about the work.

Disputes Over Author Order

Author order disputes commonly arise when contributors disagree about the relative significance of their work. These disputes often stem from unclear expectations set at project start. Early written agreements reduce the likelihood of order disputes.

Corresponding Author Unavailability

Some projects fail because the corresponding author becomes unavailable during the publication process. This problem can occur when the corresponding author changes institutions, takes extended leave, or fails to respond to journal communications. Teams should designate a backup contact or ensure the corresponding author can fulfill the role.

Welfare and Safety Context

Authorship decisions affect professional welfare and career development. Understanding the stakes helps researchers approach authorship discussions thoughtfully.

Early-Career Researcher Protections

Graduate students and postdoctoral researchers often face power imbalances in authorship negotiations. These researchers may hesitate to advocate for appropriate credit when working with senior colleagues. Institutions and mentors should create environments where early-career researchers can discuss authorship concerns without fear of retaliation.

The NIH Grants and Funding resources describe how research training environments should support ethical research conduct, including fair authorship practices. Trainees should understand their rights and responsibilities regarding authorship credit.

Institutional Policies

Many institutions have specific authorship policies that govern credit allocation. These policies often define authorship criteria, address disputes, and establish review processes. Researchers should familiarize themselves with their institution's policies before entering authorship discussions.

Institutional policies may also address how authorship credit factors into promotion, tenure, and annual reviews. Understanding these policies helps researchers plan their publication strategies.

Limitations and Professional Escalation

Authorship decisions have limits that researchers should recognize, and some situations require escalation to institutional authorities.

Limits of Written Agreements

Written authorship agreements cannot resolve all disputes. Agreements may become outdated as projects evolve, and some contributors may disagree with the original terms. Agreements serve as reference points but cannot substitute for ongoing communication and fair judgment.

When to Escalate

Researchers should escalate authorship disputes when direct discussion fails to resolve the issue. Escalation points include department chairs, research integrity officers, and institutional ombudspersons. The Committee on Publication Ethics Core Practices provides context for addressing authorship misconduct through appropriate channels.

Journal Involvement

Journals may become involved in authorship disputes that arise during submission or peer review. Editors may request clarification of author contributions or require changes to the author list. In cases of suspected authorship misconduct, journals may follow Committee on Publication Ethics Core Practices procedures for investigation.

Funder Requirements

Funding agencies may have specific requirements for authorship and publication. The NIH Grants and Funding resources describe expectations for acknowledging funding sources and complying with public access policies. Researchers should review their funding agreements for authorship-related requirements.

Building an Authorship Decision Matrix for Multi-Role Projects

Research teams often face situations where the same person could plausibly hold either the first author or corresponding author role, or where multiple contributors have legitimate claims to the same position. A structured decision matrix helps teams evaluate these situations systematically instead of relying on seniority, habit, or negotiation pressure. This framework works best when applied during the initial project discussions described earlier, before significant work begins.

Defining the Decision Criteria

The decision matrix evaluates five criteria that distinguish first author from corresponding author suitability. Each criterion receives a score from one to five, where one indicates weak alignment and five indicates strong alignment with the specific role being considered.

Research ownership measures who conceived the core research question and designed the primary experiments or analyses. The person who originated the study concept and shaped its methodology scores highest. This criterion matters most for first author selection because first authorship signals intellectual ownership of the work.

Manuscript drafting capacity assesses who can write the initial full draft and revise it through multiple iterations. This requires deep familiarity with every dataset, analysis step, and interpretation. The person who generated most of the data or directed its generation typically scores highest here.

Project management bandwidth evaluates who has the time and organizational capacity to handle submission logistics, reviewer responses, and post-publication correspondence. This criterion matters most for corresponding author selection because that role demands sustained administrative attention.

Communication responsiveness measures how quickly and reliably a person responds to emails and requests. Journals expect corresponding authors to reply within days, not weeks. A person with a track record of prompt communication scores highest on this criterion.

Career stage alignment considers which role best serves each person's professional development needs. Early-career researchers typically need first author credit to demonstrate independent capability. Established investigators often need corresponding author credit to document group leadership. This criterion helps teams balance individual needs against project requirements.

Applying the Matrix

Teams should score each candidate for each role separately. A candidate might score 5 on research ownership and manuscript drafting but only 2 on communication responsiveness. That person may be the clear first author choice but a poor corresponding author candidate.

The matrix produces two totals for each candidate, one for first author suitability and one for corresponding author suitability. The person with the highest first author total should receive that role, and the person with the highest corresponding author total should receive that role. When the same person scores highest on both, that person can hold both roles if they have the capacity to manage the combined workload.

Handling Close Scores

When two candidates score within three points of each other for the same role, the team should examine the individual criterion scores instead of the total. A candidate who scores higher on research ownership and manuscript drafting should receive first author priority even if the other candidate scores higher on project management. The reverse applies for corresponding author selection.

Teams should document the matrix scores and the reasoning behind the final decision. This documentation serves as a reference point if questions arise later about why specific roles were assigned.

Recording the Decision

The authorship agreement described in the practical implementation steps should include the matrix results. Record each candidate's scores for each criterion, the final totals, and the rationale for the assignment. This record helps prevent disputes because it shows that the decision followed a transparent process instead of personal preference or institutional hierarchy.

The Committee on Publication Ethics Core Practices emphasizes that authorship should reflect substantial contributions. The decision matrix operationalizes this principle by scoring concrete contribution areas instead of relying on general impressions.

Revisiting the Matrix Mid-Project

Research projects evolve, and contributions shift accordingly. Teams should revisit the decision matrix at major project milestones, such as after data collection completes or when the manuscript draft reaches its first full version. A candidate who scored highest on research ownership at project start may have reduced involvement by the writing stage, which could change the first author calculation.

The matrix revision process should follow the same scoring procedure as the initial assessment. Teams should compare current scores against the original scores and discuss any significant changes. If the revised scores suggest a different role assignment, the team should discuss whether to change the authorship plan or maintain the original arrangement based on the initial agreement.

Troubleshooting Matrix Failures

The decision matrix fails when teams apply it inconsistently or when candidates game the scoring system. Common failure patterns include inflating scores to favor a preferred candidate, ignoring criteria that do not favor a particular person, and applying different scoring standards to different candidates.

Teams should guard against these failures by having each candidate score themselves and then having the full team discuss the scores together. This process surfaces disagreements about contribution levels and forces the team to justify each score. The EQUATOR Network reporting guidelines can help teams define what counts as substantial contribution in their specific study type, which informs more accurate scoring.

Another failure pattern occurs when teams apply the matrix too rigidly. The matrix provides structure for decision-making but cannot capture every nuance of a research project. Teams should treat the matrix as a decision aid instead of an absolute arbiter. If the matrix produces a result that feels wrong to the team, they should discuss why the result feels wrong and adjust accordingly.

Escalating Matrix Disputes

When teams cannot agree on matrix scores or the resulting role assignments, they should escalate through the institutional channels described in the limitations section. Department chairs, research integrity officers, and institutional ombudspersons can help mediate authorship disputes that the matrix cannot resolve.

The NIH Grants and Funding resources describe how research institutions are expected to maintain environments that support ethical research conduct. Fair authorship processes, including transparent decision frameworks, form part of this expectation. Institutions that receive NIH funding must have policies in place for addressing authorship disputes, and the decision matrix provides documentation that supports these processes.

Integrating the Matrix with ORCID Records

After the team finalizes authorship roles using the matrix, each author should update their ORCID for Researchers record to reflect their contribution plans. ORCID records that accurately document authorship positions help researchers track their publication history and provide evidence of their contributions during performance reviews and grant applications.

The matrix results also inform the author contribution statements that many journals require. Teams can translate matrix scores into the contribution categories used in these statements, such as conceptualization, methodology, investigation, and writing. This translation ensures that the formal contribution record matches the team's internal assessment.

Matrix Limitations

The decision matrix cannot resolve all authorship questions. Some projects have contributions that do not fit neatly into the five criteria, such as projects where one person conceived the idea but another person executed the entire study independently. Teams should recognize these limitations and supplement the matrix with direct discussion of any unique contribution patterns.

The matrix also cannot address situations where institutional policies or funder requirements mandate specific authorship arrangements. Researchers should check their institution's authorship policy and their funding agreements before applying the matrix, as described in the welfare and safety context section. The NIH Data Management and Sharing Policy may also affect how teams document data-related contributions, which can influence authorship decisions.

Frequently Asked Questions

What is the difference between first author and corresponding author?

The first author leads the research work and writes the manuscript draft. The corresponding author manages submission, peer review, and post-publication communication. One person can hold both roles, but in collaborative projects they often fall to different individuals.

Who should be the corresponding author?

The corresponding author should be someone who can manage the publication process effectively and respond to journal communications promptly. This person is often the principal investigator or project leader, but any author with the necessary organizational capacity can serve in this role.

Does the corresponding author have to be the senior author?

No, the corresponding author does not have to be the senior author. The role requires organizational and communication skills instead of seniority. Some projects designate a corresponding author who is not the most senior contributor.

How do I decide who should be first author?

First authorship should go to the person who makes the most substantial intellectual and practical contributions to the research. This person typically designs experiments, analyzes data, and drafts the manuscript. Discuss contributions openly with all team members before deciding.

Can I be both first author and corresponding author?

Yes, you can hold both roles if you lead the research and manage the publication process. This arrangement is common for early-career researchers who conduct independent work or for projects with limited team involvement.

What should I do if I disagree with the authorship plan?

Discuss your concerns directly with the research team first. If the issue remains unresolved, consult your institution's authorship policy and escalate to a department chair or research integrity officer. The Committee on Publication Ethics Core Practices provides context for addressing authorship concerns.

How do journals verify author contributions?

Many journals require author contribution statements that specify each author's role. Some journals also ask authors to confirm that all listed contributors meet authorship criteria. The EQUATOR Network provides reporting guidelines that support transparent authorship documentation.

What happens if a co-author does not approve the manuscript?

The corresponding author should not submit the manuscript until all co-authors approve the final version. If a co-author refuses approval, the team should discuss the concerns and resolve them before submission. Unresolved disagreements may require institutional involvement.

Using the Evidence

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References and Further Reading

• Research Methods Resources. National Library of Medicine.
• EQUATOR Network. EQUATOR Network.
• Core Practices. Committee on Publication Ethics.
• NIH Grants and Funding. National Institutes of Health.
• ORCID for Researchers. ORCID.
• Data Management and Sharing Policy. National Institutes of Health.
• NCBI Literature Resources. National Center for Biotechnology Information.
• PubMed. National Library of Medicine.

This article is educational and does not replace institutional policy, professional advice, or applicable safety and regulatory requirements.