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Wage and Hour Litigation Expert

Dr. Pavithra Kumar works with wage and hour litigation attorneys on both sides of a case. She analyzes payroll and timekeeping data, builds class-wide damages models, and testifies to what the records show.

Wage and Hour Litigation Expert

A wage and hour litigation expert is an economist who measures what a pay practice cost a group of workers, and whether that figure holds up across an entire class. The claim itself is usually simple to state. Someone was not paid for time worked, or was paid at the wrong rate. The hard part is arithmeticat scale: thousands of employees, years of timekeeping records, and a number that has to survive challenge from the other side.

That number is where Dr. Pavithra Kumar works. She analyzes payroll and timekeeping data, builds class-wide damages models, and testifies to what the records show. Her background is in financial economics, with a PhD and a CFA charter, and she has spent years as a testifying expert in complex damages and class certification disputes. The same statistical questions that decide securities class actions decide wage and hour cases: can the loss be measured the same way for everyone, and does the method match the theory of the claim?

What a Wage and Hour Litigation Expert Does

The work falls into a few clear tasks:

Reconstruct the pay record

Pull hours worked, rates, bonuses, and shift differentials from timekeeping and payroll systems, and rebuild what each worker was actually paid against what the pay policy would produce.

Compute the regular rate

Overtime is owed on the regular rate, not the base rate. Nondiscretionary bonuses, commissions, and premiums have to be folded in, and that calculation is often where the disagreement starts.

Design and run samples

When records are incomplete or the class is large, a properly designed sample and time study can estimate unpaid time for the group.

Build the class-wide damages model

Turn the analysis into a per-worker schedule that can be applied across the class, with penalties and interest layered where they apply.

Test the other side

Examine whether an opposing sample is representative, whether an extrapolation is sound, and whether a single average has been stretched across workers whose jobs differ.

Quantify exposure early

Before a claim is filed or during settlement talks, the same analysis of payroll data shows the size of the risk. Wage and hour litigation prevention starts with knowing what the records already say.

The Claims and What Each One Requires

Different claims call for different analysis. The table below maps the common ones to the economic work behind them.

Claim Type What the Analysis Must Establish
Unpaid Overtime Hours worked over the daily or weekly overtime threshold, and the correct regular rate for each pay period.
Off-the-Clock Work Unrecorded time worked before, after, or during shifts, usually estimated through sampling or a time study.
Meal and Rest Breaks Missed, short, or late breaks identified in punch data, and the premium owed for each violation.
Time Rounding Whether the employer’s rounding policy is neutral over time or systematically favors the employer.
Misclassification Hours worked and compensation paid to workers treated as exempt, and the overtime that would have been owed if they were properly classified.
Minimum Wage Effective hourly pay after accounting for deductions, reimbursements, and unpaid working time.
Penalties and Interest Wage-statement and waiting-time penalties, PAGA amounts where applicable, and prejudgment interest.

Time rounding is the one that surprises people. It can round both ways, and whether it actually does is a question the punch data answers over a long enough period.

Where These Cases Are Decided: Class Certification

Most wage & hour collective and class litigation turns at certification. Under Rule 23, a class can proceed only if the questions shared by the group outweigh the questions that differ worker by worker. In FLSA wage and hour litigation, a collective action runs on a similar test of whether the workers are similarly situated. Either way, the fight is statistical.

In Tyson Foods v. Bouaphakeo (2016), the Supreme Court accepted a sampled time study as class-wide proof in a case where the employer had kept no record of the disputed time. The limit it drew is the one that governs the analysis: a sample carries the class only where its result can be soundly extrapolated to any individual class member.

Whether a class should be certified is for the court to decide. Whether a sample was properly designed, whether it represents the group, and whether the extrapolation holds are questions answered with data.

How the Analysis Gets Built

  • Intake and audit the data. Timekeeping exports, payroll registers, schedules, and policy documents, checked for gaps, duplicate punches, and system changes during the class period.
  • Rebuild hours and pay. Reconstruct daily and weekly hours per worker, then the compensation actually received for each period.
  • Compute the regular rate. Fold in bonuses, commissions, and differentials, period by period, since the rate moves as those inputs move.
  • Design the sample where records fall short. Set the sample frame and size so the result can be extrapolated, and document the method well enough that another economist can repeat it.
  • Measure the shortfall. Compare what was owed under each alternative scenario to what was paid, and produce a per-worker figure.
  • Layer penalties and interest. Apply wage statement, waiting time, and PAGA amounts where they apply, with the assumptions stated openly.
  • Test the result. Run sensitivities on the key assumptions, report confidence bounds on any extrapolated figure, and show where the number would move if an assumption changed.

Step seven is the one that matters under cross-examination, because a figure presented with its uncertainty and its reasoning visible is far harder to dislodge than a bare point estimate.

Working From Either Side

Dr. Kumar takes engagements from wage & hour attorneys on both sides, and the methods do not change with the side of the caption.

Supporting wage and hour violation litigation attorneys on the plaintiff side usually means building the affirmative case: designing the study, reconstructing the pay record, and producing a class-wide model that fits the theory pleaded.

For defense, the work is often diagnostic. Was the sample representative of the class, or drawn from a subset that worked differently? Does the rounding policy actually favor the employer once the full period is examined? Does one average hide variation across job codes large enough to matter? These questions are answered with the same tools used to build the model in the first place.

Wage and Hour Litigation Services

Wage and  hour litigation services run the length of a case, from early exposure analysis through expert reports, deposition, and trial testimony. Each engagement produces work that can be examined, repeated, and defended.

This work sits alongside her broader practice measuring economic damages in commercial disputes, and it draws on the same class certification analysis she applies in securities litigation. Attorneys who need a single financial expert witness across several matters often retain her for both.

If you are weighing a case and want to know what the payroll data actually supports, get in touch or call +1 617-899-0295 for a confidential discussion.

 

 

What She Needs to Start

Most engagements begin with a short call and a data request. The analysis usually needs:

  • Timekeeping exports covering the class period, with raw punch detail rather than summaries
  • Payroll registers showing rates, hours, bonuses, commissions, and differentials
  • Written pay policies, handbooks, and any rounding or auto-deduct rules
  • Job codes, locations, and shift schedules, so variation across the class can be tested
  • The operative complaint and any certification briefing already filed

Raw data beats summary reports every time. A summary already reflects the pay rules in dispute, which is exactly what the analysis needs to test independently.

Discuss Your Case

If you are assessing exposure, preparing a certification motion, or responding to an opposing expert, Dr. Kumar can tell you quickly what the payroll and timekeeping data will support. Contact her or call +1 617-899-0295 for a confidential discussion.

Frequently Asked Questions

What does a wage hour litigation expert do?
The expert measures the money at issue. That means reconstructing hours and pay from timekeeping and payroll records, computing the correct regular rate, estimating unrecorded time where records are missing, and producing a damages figure that can be applied across the class and defended under cross- examination.
Can statistical sampling prove a wage and hour class?
It can, within limits. In Tyson Foods v. Bouaphakeo, the Supreme Court allowed a time study based on a sample to support certification where the employer had not kept records of the disputed time. The Court required a sound basis for extrapolating the sample to individual class members, so the design of the sample carries the argument.
How are class-wide damages calculated in wage and hour cases?

By building a per-worker schedule from the records: hours owed against hours paid for each period, priced at the correct regular rate, with penalties and interest added where they apply. The method has to be the same for everyone in the class and has to match the theory of the claim.
How is the regular rate of pay calculated?

Under the federal formula, it is total compensation for the workweek, less the statutory exclusions, divided by the total hours actually worked that week. Nondiscretionary bonuses, commissions, and shift premiums belong in the numerator. Overtime is owed on that rate, so leaving out a quarterly bonus can understate every overtime hour in the period.
When should attorneys bring in an expert?
Before the certification motion. The statistical showing is what certification now turns on, and a sampling plan designed after the fact is harder to defend than one built at the outset. Early involvement also gives a realistic view of exposure during settlement talks.
Do you work with Los Angeles wage and hour litigation attorneys?
Yes. Dr. Kumar works with wage and hour attorneys across California and nationally, including Los Angeles, San Diego, and Fresno, and her analysis covers both federal FLSA claims and California-specific claims such as meal and rest break premiums and PAGA penalties.
Can you support wage and hour litigation defense in San Diego or other California venues?
Yes. Defense engagements often center on testing an opposing expert: whether the sample represents the class, whether the extrapolation holds, and whether averaging conceals differences across job codes or locations that matter to the result.
Can this analysis help before a lawsuit is filed?
Yes. Running the same analysis on payroll and timekeeping data shows what the records would produce if a claim were brought, which is the practical starting point for wage and hour litigation prevention.