Mon - Fri · 9:00 - 18:00 jwalstra@walstraexpertwitness.com
Trusted partner in legal excellence
Unbiased expert testimony

Vocational and economic evidence that strengthens complex legal cases

Walstra Expert Witness Company delivers vocational and economic testimony that supports informed decisions. We collaborate with plaintiff and defense attorneys to present precise analysis.

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Expert witness consulting
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28 years of experience

Clear, timely reports grounded in evidence.

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Rigorous analysis

Economic and vocational models with technical rigor.

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What we do

Informed and personal decisions in personal injury, medical malpractice, wrongful death, and divorce litigation.

Walstra Expert Witness Company

Vocational and economic expertise that leads to fair solutions

We are only interested in reporting the truth. The report will have the same outcome whether it's written for defense or for plaintiff attorneys.

With law-in-mind

Evaluations and assessments considering legal requirements

Valid and reliable

Methods rest on established, peer reviewed principles and transparent reasoning.

Evidence-driven rigor

Expert testimony in state and federal courts.

Proven credibility

Extensive experience in high-stakes litigation.

Services

Expert support for every stage of litigation

Vocational analysis, lost earning capacity and damage calculation, evaluation of lost household services production, present value calculations for life care plans.

Reporting Process

Materials accessed, methodology, interview, data collection of past work, earnings, medical reports, vocational opinions, economic opinions, draft report, final report, depositions, trial testimony.

Vocational Analysis

The vocational analysis includes elements of Rapel: Rehabilitation plan, access to the labor market (including TSA), placeability, earning capacity (pre/lost), labor force participation.

Economic analysis

Calculating pre-incident earning capacity; post-incident earning capacity; present value analysis.

Calculation of Household Services

Using the american time use series (ATUS) and bureau of labor statics wage data.

Life care plan (LCP)

Present value calculations, including appropiate inflation rates, wage growth rates, and discount rates.

Efficient delivery

Integral vocational and economic analysis with fluent flow from functional losses to earning losses.

Latest insights

Recent articles from our blog

Practical guidance and expert analysis to support legal teams in complex cases.

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Economic analysis workspace
Research article
The Issue of Household Services

How ADL limitations impact the economic value of household services.

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Team consultation session
Research article
The Rise of Economic and Vocational Data in Personal Injury Compensation

Historical evolution of lost earning capacity methods and data sources.

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Legal research materials
Research article
Earnings and Career Length of Professional MLS Soccer Players

Findings on earnings and career length for professional MLS players.

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Credentials

Jeroen Walstra, MA, CEA, ABVE/D

Advanced training and specialized certifications support rigorous analysis and high-quality testimony, ensuring clarity and credibility in every case.

Certifications
  • Board-Certified Diplomate Member of the American Board for Vocational Experts (ABVE-D) since 2012
  • Certified Earnings Analyst (CEA) with the American Rehabilitation Economics Association (AREA) since 2002
Education
  • Completed post-master's coursework, continuing education, and specialized workshops in Vocational Economic Analysis
  • MA from Webster University, St. Louis, MO; BA from Haagsche Academie voor Lichamelijke Opvoeding, The Hague, NL, Propedeuse University of Utrecht, NL
Work Experience
  • Self-employed since 1997 as an Economic and Vocational Expert specializing in lost vocational capacity and earning-capacity assessments
  • Taught Economics and Business at Chatham University and Point Park University
  • Testified in federal court and in state courts including Pennsylvania, Ohio, Massachusetts, Oregon, and West Virginia
  • Served as a Vocational Expert for the Social Security Administration
Publications and Presentations
  • Published in peer-reviewed journals and presented at professional conferences
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Professional consulting meeting

Proven impact

Over 750 cases handled and more than 675 detailed reports delivered, with testimony in state and federal courts across multiple jurisdictions.

Experience

Results in high-stakes litigation

Extensive experience in personal injury, wrongful death, wrongful termination, divorce, and Social Security disability cases.

  • Expert testimony in state and federal courts.
  • Over 1,000 hearings in SSA disability cases.
  • National recognition across multiple U.S. states.
  • Detailed reports that lead to resolution.

“I’m a very strong believer in listening and learning from others.”

Ruth Bader Ginsburg
How we support legal teams
  • Strengthen case strategy with expert analysis.
  • Increase persuasive impact before judges and juries.
  • Provide honest and relevant opinions.
  • Mitigate risk in economic and vocational matters.