Nkansah et al v. Martinez et al
RULING AND ORDER: 53 MOTION in Limine to Exclude Report and Testimony of G. Randolph Rice filed by Depositors Insurance Company is GRANTED IN PART and DENIED IN PART. Signed by Judge John W. deGravelles on 06/28/2017. (KDC)
UNITED STATES DISTRICT COURT
MIDDLE DISTRICT OF LOUISIANA
PATRICK NKANSAH, ET AL.
CIVIL ACTION NO. 3:15-CV-00646
JUDGE JOHN W. DEGRAVELLES
RICHARD L. BOURGEOIS, JR.
EDGAR A. MARTINEZ, ET AL.
RULING AND ORDER ON DEFENDANTS’ MOTION IN LIMINE
TO EXCLUDE EXPERT REPORT AND TESTIMONY OF
G. RANDOLPH RICE
Before the Court is the Motion in Limine to Exclude Expert Report and Testimony of G.
Randolph Rice filed by defendant Depositors Insurance Company (“Defendant” or
“Depositors”). (Doc. 53.) The motion is opposed by plaintiff Patrick Nkansah (“Plaintiff” or
“Nkansah”). (Doc. 64.) Depositors filed a reply memorandum. (Doc. 71.) For the reasons which
follow, the motion is granted in part and denied in part.
This suit arises out of a motor vehicle accident between two tractor-trailer vehicles, one
being driven by Plaintiff and the other driven by defendant Edgar A Martinez (“Martinez”).
Plaintiffs allege Martinez was at fault in the accident. (Docs. 1-3, 9 and 11.) Also sued is
Depositors as the insurer for Martinez. Liability for the accident is disputed. (Docs. 4, 10 and
11.) The case was removed to this Court based on diversity of citizenship jurisdiction. (Doc. 1.)
In Plaintiff’s First Supplemental and Amending Complaint for Damages, Nkansah alleges
he suffered damages in the form of physical and mental anguish, pain and suffering, as well as
loss of income caused by his alleged inability to pursue his former occupation. (Doc. 9 ¶ 7.) In
support of this claim for economic losses, Nkansah offers the expert report and testimony of
economist G. Randolph Rice, PhD. It is the report and testimony of Dr. Rice which is the subject
of the present motion.
SUMMARY OF ARGUMENT OF THE PARTIES
Depositors does not question the credentials or qualifications of Dr. Rice. However,
“Depositors contends that Dr. Rice’s report and testimony should be excluded because Dr. Rice’s
methodology is inherently flawed in relying upon pure speculative assumptions rather than actual
data or facts.” (Doc. 53-1 at 3.) Specifically, Depositors complains that Dr. Rice’s assumption of
a work-life expectancy of 26.07 years is “derived exclusively from an assumption that Mr.
Nkansah’s attorney asked Dr. Rice to make” (Doc. 53-1 at 4), and is otherwise unsupported.
Second, Depositors takes issue with Dr. Rice’s failure to consider Nkansah’s income tax returns
and failure to take into account the need to deduct Nkansah’s expenses in order to reach an
accurate earnings amount. (Doc. 53-1 at 5-6.) Third, Dr. Rice’s opinion is based upon “pure
speculation that Mr. Nkansah cannot work as a ‘long-haul’ trucker and cannot become an
‘owner-operator.’ ” (Doc. 53-1 at 6-8.) Depositors’ reply memorandum (Doc. 71) largely restates
the arguments made in its original memorandum.
In his opposition, Nkansah argues that his injuries are so severe that he is facing surgery
to repair his back. (Doc. 64 at 1.) He maintains that experts are entitled to rely on assumptions
and that those relied upon by Rice are the kind economists are entitled to rely on. He points to
case law he contends supports this proposition. (Doc. 64 at 2-3.) Such assumptions, if
challenged, may affect the weight and credibility to be given to the testimony but, argues
Nkansah, not their admissibility. (Id.) Any weakness in those assumptions can be tested by
Defendants on cross-examination. (Id.)
Pursuant to Rule 702, “a witness who is qualified as an expert by knowledge, skill,
experience, or education may testify in the form of an opinion or otherwise” if its preconditions
are met. FED. R. EVID. 702. Rule 702, however, does not render all expert testimony admissible.
United States v Scavo, 593 F.2d 837, 844 (8th Cir. 1979). Rather, beyond being subject to the
Rule’s helpfulness requirement, expert testimony can still be excluded per Rule 403. FED. R.
EVID. 403; United States v Green, 548 F.2d 1261, 1270 (6th Cir. 1977). Entirely discretionary,
Rule 403 allows a court to “exclude relevant evidence if its probative value is substantially
outweighed by a danger of one or more of the following: unfair prejudice, confusing the issues,
misleading the jury, undue delay, wasting time, or needlessly presenting cumulative evidence.”
Fed. R. Evid. 403.
This is a Daubert challenge based on the expert’s alleged failure to use an accepted
methodology and his opinion’s alleged lack of an adequate factual foundation. (Doc. 107-1 at 2.)
Daubert v. Merrell Dow Pharmaceuticals, Inc. 509 U.S. 579, 113 S. Ct. 2786, 125 L. Ed. 2d 469
(1993). When Daubert is invoked, a district court may, but is not required, to hold a hearing at
which the proffered opinion may be challenged. Carlson v. Bioremedi Therapeutic Sys., Inc., No.
14-20691, 2016 WL 2865256, at *7, 2016 U.S. App. LEXIS 8951, at *11 (5th Cir., May 16,
2016). However, when no hearing is held, “a district court must still perform its gatekeeping
function by performing some type of Daubert inquiry.” Id. “At a minimum, a district court must
create a record of its Daubert inquiry and ‘articulate its basis for admitting expert testimony.’ ”
Id. (quoting Rodriquez v. Riddell Sports, Inc., 242 F.3d 567, 581 (5th Cir. 2001)).
The role of the trial court is to serve as the gatekeeper for expert testimony by making the
determination of whether the expert opinion is reliable. As the Fifth Circuit has held:
[W]hen expert testimony is offered, the trial judge must perform a screening
function to ensure that the expert's opinion is reliable and relevant to the facts at
issue in the case. . . . Daubert went on to make “general observations” intended to
guide a district court's evaluation of scientific evidence. The nonexclusive list
includes “whether [a theory or technique] can be (and has been) tested,” whether
it “has been subjected to peer review and publication,” the “known or potential
rate of error,” and the “existence and maintenance of standards controlling the
technique's operation,” as well as “general acceptance.” . . . The Court
The inquiry envisioned by Rule 702 is, we emphasize, a flexible one. Its
overarching subject is the scientific validity and thus the evidentiary
relevance and reliability-of the principles that underlie a proposed
submission. The focus, of course, must be solely on principles and
methodology, not on the conclusions that they generate.
Watkins v. Telsmith, Inc., 121 F.3d 984, 988–89 (5th Cir. 1997) (internal citations
The cases following Daubert have expanded the factors and explained the listing is
neither all-encompassing nor is every factor required in every case. See, e.g., Gen. Elec. Co. v.
Joiner, 522 U.S. 136, 143 (1997); Guy v. Crown Equip. Corp., 394 F.3d 320, 325 (5th Cir.
2004). Indeed, courts may look to other factors. Joiner, 522 U.S. at 146.
This Court has explained:
The admissibility of expert testimony is governed by Federal Rule of Evidence
702 and Daubert v. Merrell Dow Pharmaceuticals, Inc., . . . which provide that
the court serves as a gatekeeper, ensuring all scientific testimony is relevant and
reliable. This gatekeeping role extends to all expert testimony, whether scientific
or not. . . . Under Rule 702, the court must consider three primary requirements in
determining the admissibility of expert testimony: 1) qualifications of the expert
witness; 2) relevance of the testimony; and 3) reliability of the principles and
methodology upon which the testimony is based.
Fayard v. Tire Kingdom, Inc., No. 09-171, 2010 WL 3999011, at *1, 2010 U.S. Dist. LEXIS
108845, at *2-3 (M.D. La. Oct. 12, 2010) (internal citation omitted) (citing Kumho Tire Co., Ltd.
v. Carmichael, 526 U.S. 137, 147, 119 S. Ct. 1167, 143 L. Ed. 2d 238 (1999)).
This Court has broad discretion in deciding whether to admit expert opinion testimony.
See, e.g., Joiner, 522 U.S. at 138-39 (holding that appellate courts review a trial court's decision
to admit or exclude expert testimony under Daubert under the abuse of discretion standard);
Watkins v. Telsmith, Inc., 121 F.3d 984, 988 (5th Cir. 1997) (holding “[d]istrict courts enjoy
wide latitude in determining the admissibility of expert testimony”); Hidden Oaks Ltd. v. City of
Austin, 138 F.3d 1036, 1050 (5th Cir. 1998) (“Trial courts have ‘wide discretion’ in deciding
whether or not a particular witness qualifies as an expert under the Federal Rules of Evidence.”).
“Notwithstanding Daubert, the Court remains cognizant that ‘the rejection of expert
testimony is the exception and not the rule.’” Johnson v. Samsung Elecs. Am., Inc., 277 F.R.D.
161, 165 (E.D. La. 2011) (citing Fed. R. Evid. 702 Advisory Committee Note (2000 amend.)).
Further, as explained in Scordill v. Louisville Ladder Grp., L.L.C., No. 02-2565, 2003 WL
22427981, 2003 U.S. Dist. LEXIS 19052 (E.D. La. Oct. 24, 2003) (Vance, J.):
The Court notes that its role as a gatekeeper does not replace the traditional
adversary system and the place of the jury within the system. . . . As the Daubert
Court noted, “[v]igorous cross-examination, presentation of contrary evidence,
and careful instruction on the burden of proof are the traditional and appropriate
means of attacking shaky but admissible evidence.” . . . The Fifth Circuit has
added that, in determining the admissibility of expert testimony, a district court
must defer to “‘the jury's role as the proper arbiter of disputes between conflicting
opinions. As a general rule, questions relating to the bases and sources of an
expert's opinion affect the weight to be assigned that opinion rather than its
admissibility and should be left for the jury's consideration.’”
Id. at *3 (internal citations omitted) (relying on, among others, Rock v. Arkansas, 483 U.S. 44,
61, 107 S. Ct. 2704, 97 L. Ed. 2d 37 (1987), and United States v. 14.38 Acres of Land, More or
Less Sit. In Leflore County, Miss., 80 F.3d 1074, 1077 (5th Cir. 1996) (quoting Viterbo v. Dow
Chemical Co., 826 F.2d 420, 422 (5th Cir. 1987))).
The Supreme Court has recognized that not all expert opinion testimony can be measured
by the same exact standard. Rather, the Daubert analysis is a “flexible” one, and “the factors
identified in Daubert may or may not be pertinent in assessing reliability, depending on the
nature of the issue, the expert's particular expertise and the subject of his testimony.” Kumho,
526 U.S. at 150, cited with approval in, e.g., Pipitone v. Biomatrix, Inc., 288 F.3d 239, 244 (5th
In that vein, the Fifth Circuit has concluded that “soft sciences” involve “necessarily
diminished methodological precision” when compared to other scientific disciplines like
mathematics and engineering. United States v. Simmons, 470 F.3d 1115, 1123 (5th Cir. 2006)
(citing and quoting Jenson v. Eveleth Taconite Co., 130 F.3d 1287 (8th Cir. 1997)).
In such instances, other indicia of reliability are considered under Daubert,
including professional experience, education, training, and observations. See e.g.,
Because there are areas of expertise, such as the “social sciences in which the
research theories and opinions cannot have the exactness of hard science
methodologies”, . . . trial judges are given broad discretion to determine “whether
Daubert’s specific factors are, or are not, reasonable measures of reliability in a
Id. (internal citations omitted) (relying on Pipitone v. Biomatrix, Inc., 288 F.3d 239, 247 (5th Cir.
In its motion, Depositors challenges several assumptions made by Dr. Rice. However,
experts are not prohibited from relying on assumptions when reaching their opinions. Barnes v.
Commerce & Industry Insurance Company, No. 11-0041, 2013 WL 6145309 at *2, (W.D. La.
Nov. 21, 2013) (citing Daubert, 509 U.S. at 589; Kuhmo Tire, 526 U.S. at 153-54; Nova
Consulting Grp., Inc. v. End’g Consulting Servs., Ltd., 290 F. App’x 727, 732-33 (5th Cir. 2008)
(holding that an expert’s opinion was not rendered unreliable merely because he made a number
of assumptions)). Indeed, experts frequently make assumptions upon which their opinions rest.
“As a general rule, questions related to the bases and sources of an expert’s opinions affect the
weight to be assigned that opinion rather than its admissibility and should be left for the jury’s
consideration.” United States v. 14.3 Acres of Land More Or Less Situated in Lefore County,
Ms., 80 F.3d 1074, 1077 (5th Cir. 1996) (quoting Viterbo v. Dow Chemical Co., 826 F.2d 420,
422 (5th Cir. 1987)); see also Tyler v. Union Oil Co. of Cal., 304 F.3d 379, 392-93 (5th Cir.
2002 (holding that a party’s objection that the expert’s self-created database was unreliable did
not affect admissibility); Naquin v. Elevating Boats, LLC, No. 10-4320, 2012 WL 1664257, at *4
(E.D. La. May 11, 2012); St Joseph Abbey v. Castille, No. 10-2717, 2011 WL 2182046, at *1
(E.D. La. June 3, 2011) (“’The reliability of data underlying an expert’s opinion goes to the
weight of this evidence, but should not serve as a basis for its exclusion.” (quoting Gen. Elec.
Capital Bus. Asset Funding Corp. v. S.A.S.E. Military, Ltd., No. 03-189, 2004 WL 5495590, at
*4 (W.D. Tex. Oct. 21, 2004)); Imperial Trading Co. v. Travelers Property and Casualty Co. of
America, No. 06-4262, 2009 WL 2356292, *3 (E.D. La. July 28, 2009); Southwire Co. v. J.P.
Morgan Chase & Co., 258 F. Supp. 2d 908, 935 (W.D. Wis. 2007) (“ the alleged errors and
inconsistencies are grounds for impeaching the credibility of the experts and the reliability of
their ultimate finding; however, mistakes and miscalculations are not grounds for excluding
evidence.” (citing Daubert, 509 U.S. at 596)).
The most appropriate place to challenge the assumptions made by an expert is at trial on
cross-examination and with countervailing expert testimony. “”Matters left for the jury’s
consideration include the [expert’s] alleged miscalculations, erroneous assumptions and
inconsistencies…” Imperial Trading, 2009 WL 2356292, at *3. In denying a Daubert challenge
to Dr. Rice based on his allegedly faulty assumptions, this Court has previously held “the
credibility and amount of weight that should be applied to the opinions of the countervailing
experts are better left to the consideration of the trier of fact.” Arceneaux v. Lexington Insurance
Company, No. 11-423, 2013 WL 5839325, at *2 (M.D. La. Oct. 30, 2013).
Depositors’ most serious challenge is to Dr. Rice’s assumption that Nkansah would work
until age 68 with a derived work-life expectancy of 26.07 years from the trial date. (Doc. 53-5 at
1.) This figure is one, according to Rice’s report, he was asked by Nkansah’s counsel to assume.
(Id.) There is no statement given in Rice’s report as to whether such assumption has any factual
foundation. In a ruling on another Daubert motion in this case, the Court ruled that Nkansah’s
expert Laura Schexnayder would not be allowed to opine as to a similar work-life expectancy
where the sole basis for this data was what counsel had asked her to assume and data from the
Owner Operator Independent Drivers Association that “[m]ost independent drivers plan on
retiring at 67 years of age…” (Doc. 101 at 15.)
In a similar challenge to Dr. Rice’s opinion in another case, the court ruled as follows:
… Dr. Rice’s testimony regarding plaintiff’s future lost earnings is only
permissible if alternative evidence shows that Plaintiff’s personal characteristics including his health, occupation, or other facts - are likely to give him a longer
work-life expectancy than the rate provided by the Department of Labor’s
statistical tables. Here, Plaintiff has expressed an intention to ‘present evidence at
trial that he would have continued working past the average work-life expectancy.
(citation omitted).’ Because the nature of this evidence plaintiff plans to present is
not entirely clear at present, the Court deems it most appropriate to defer its ruling
on this aspect of Defendant’s motion at the present time. However, Dr. Rice will
not be permitted to testify regarding his future lost wage calculations based
merely on his assumption of Plaintiff’s work-life expectancy. (Citation omitted).
Nor will self-serving testimony regarding the fact that plaintiff ‘intended’ to work
until age 70 suffice.
Naquin v. Elevating Boats, LLC, supra at *4–*5.
Here, unlike the situation in Naquin, Plaintiff has expressed no intention to offer
objective evidence showing that Nkansah’s work-life would be longer than the statistical
average. If Nkansah was relying on his other expert, Laura Schexnayder, to provide this
information, the Court has already ruled such opinion testimony unreliable and inadmissible.
Thus, Plaintiff Nkansah will be given two weeks from the hearing date to submit a statement of
such objective evidence he intends to use to support such a contention or, alternatively, to have
Dr. Rice issue a supplemental report utilizing a work-life expectancy based on supportable
statistical information. If Plaintiff chooses the latter option, Defendants will be allowed to depose
Dr. Rice before trial should they choose to do so.
However, with respect to Depositors’ remaining complaints about the Rice report and
testimony (Rice’s failure to consider Nkansah’s income tax returns, his failure to take into
account the need to deduct Nkansah’s expenses in order to reach an accurate earnings amount,
and the assumption made that Mr. Nkansah cannot work as a ‘long-haul’ trucker and cannot
become an ‘owner-operator), these opinions and assumptions are more appropriately addressed
by way of cross-examination and/or the introduction of Depositors’ own economic expert Holly
Sharp. As to these items, Depositors’ motion is denied.
IT IS ORDERED that, for the above reasons, the Motion in Limine to Exclude Expert
Report and Testimony of G. Randolph Rice filed by defendant Depositors Insurance Company
(Doc. 53) is GRANTED IN PART and DENIED IN PART.
Signed in Baton Rouge, Louisiana, on June 28, 2017.
JUDGE JOHN W. deGRAVELLES
UNITED STATES DISTRICT COURT
MIDDLE DISTRICT OF LOUISIANA
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