What discount rate do forensic economists use?

There is no single universal rate. Federal courts often reference U.S. Treasury yields or similar low-risk rates, sometimes adjusted for wage growth. State courts may follow different approaches including total offset methods. The economist applies the methodology counsel identifies as appropriate for the forum and documents the rate source and rationale.

Should lost future earnings be presented to the jury in nominal or present value terms?

This is a legal question for counsel and the court. Some jurisdictions require present value presentation; others permit nominal future loss with separate jury instructions on discounting. Economists prepare calculations in the format directed by counsel and explain the time value of money in testimony when needed.

Present Value & Discounting of Future Earnings

Converting future wage and capacity loss streams to a single present value for judgment and settlement.

A dollar earned twenty years from now is worth less than a dollar today. Present value discounting converts a stream of future economic losses into a single sum representing the current value of that loss—typically the figure presented to juries and used in settlement negotiations.

Discount rate selection is among the most contested issues in economic damages litigation. Forums differ on whether to use a nominal discount rate with nominal wage growth, a real rate net of inflation, or a total offset approach. Economists document the methodology applied and cite forum-appropriate authority without offering legal conclusions on which method applies.

The present value calculation combines the annual loss stream (earnings differential plus fringe benefits where included), work-life expectancy, and the discount rate. Sensitivity analysis showing how the present value changes under alternative rates helps counsel evaluate settlement risk.

Errors in present value calculations—using the wrong rate, confusing nominal and real treatment, or discounting already-present-value figures—are frequent targets of rebuttal experts and Daubert challenges.

Network economists apply present value as part of comprehensive damages models or as standalone analysis when wage loss is agreed but discount methodology is disputed. All calculations are reproducible with stated assumptions for opposing expert verification.

Frequently Asked Questions

What discount rate do forensic economists use?: There is no single universal rate. Federal courts often reference U.S. Treasury yields or similar low-risk rates, sometimes adjusted for wage growth. State courts may follow different approaches including total offset methods. The economist applies the methodology counsel identifies as appropriate for the forum and documents the rate source and rationale.
Should lost future earnings be presented to the jury in nominal or present value terms?: This is a legal question for counsel and the court. Some jurisdictions require present value presentation; others permit nominal future loss with separate jury instructions on discounting. Economists prepare calculations in the format directed by counsel and explain the time value of money in testimony when needed.

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