Between the trial and the appeal of this diversity case the Texas Supreme Court *795 rendered a decision that undercuts the basis for the trial court’s directed verdict for the defendant. We must decide whether the intervening state court decision operates retroactively. We conclude that it does and reverse and remand for further proceedings.
Bobby Ray Downs was employed by Fish Engineering and Construction Company. Huber Corporation, the defendant, hired Fish as an independent contractor to perform construction work on Huber’s premises. Downs was killed when a crane he was guiding ran through overhead power lines and transmitted a high voltage shock. Downs’ wife and children sued Huber under the Texas wrongful death statute, 1 claiming that Huber negligently breached its duty to provide a safe working environment to its business invitees.
At the time of trial in 1976 Texas negligence law defined the standard of care owed by a land occupier to business invitees under the Texas “no duty rule.”
See generally, e. g., Adam Dante Corp. v. Sharpe,
The “no duty” doctrine is this: the occupier of land or premises is required to keep his land or premises in a reasonably safe condition for his invitees. This includes a duty of the occupier to inspect and to discover dangerous conditions. . His duty is to protect his invitees from dangers from which he, the occupier, knows, or (because of his duty to inspect) of which he should know in the exercise of ordinary care. If there are dangers which are not open and obvious, he is under a duty to take such precautions as a reasonably prudent person would take to protect his invitees therefrom or to warn them thereof. But if there are open and obvious dangers of which the invitees know, or of which they are charged with knowledge, then the occupier owes them “no duty” to warn or to protect the invitees. This is so, the cases say, because there is “no duty” to warn a person of things he already knows, or of dangerous conditions or activities which are so open and obvious that as a matter of law he will be charged with knowledge and appreciation thereof. .
Id. at 378 (emphasis in original).
As the no duty rule operated, the court determined as a matter of law whether a condition was open and obvious.
Adam Dante, supra, 483
S.W.2d at 459. Since an invitee is charged with knowledge and full appreciation of an open and obvious danger, the court’s holding that a condition was open and obvious relieved the defendant of any duty (and any liability) to the plaintiff.
See generally McKee v. Patterson,
During the pendency of the appeal the Texas Supreme Court abolished the no duty rule in land occupier cases.
See Parker v. Highland Park, Inc.,
Huber argues that Parker has only prospective application and thus leaves the trial judge’s verdict intact. Huber bases its argument on the language in Parker that abolished the no duty rule.
We now expressly abolish the so-called no-duty concept in this case and, as expressed in Farley [Farley v. M M Cattle Co.,529 S.W.2d 751 (Tex.1975)] “henceforth in the trial of all actions based on negligence . . .” The reasonableness of an actor’s conduct under the circumstances will be determined under principles of contributory negligence.
As a federal court exercising diversity jurisdiction, we apply the law of the state as interpreted by the state’s highest court.
Erie R.R. v. Tompkins,
Three years after
Erie,
however, the Supreme Court considered in
Vandenbark v. Owens-Illinois Glass Co.,
In this case, application of the Vandenbark rule and an Erie analysis tied to the probable result in state court produce the same result, for we believe that the Texas Supreme Court would apply Parker to state cases tried and pending appeal when Parker was decided, 5 Parker did not spring full- *797 grown and unannounced upon Texas negligence law. Rather the decision is but one of several reformations of Texas’ tort law to meet the more flexible comparative negligence system. Prior to adopting comparative negligence, Texas applied several harsh defensive doctrines relating to plaintiff’s conduct — volenti non fit injuria (assumption of the risk), discovered peril, and the no duty rule — that operated as complete bars to a plaintiff’s recovery. The Texas Supreme Court has methodically discarded these doctrines as inconsistent with comparative negligence.
Farley v. M M Cattle Co.,
This court, based on logic, has already undermined the no-duty rule that the court in McKee [v. Patterson,153 Tex. 517 ,271 S.W.2d 391 (1954)] felt bound by stare decisis to follow. Our decision in 1975 in Farley . . . abolished the voluntary assumption of risk doctrine in its entirety. . . . [Assumed risk] included three elements: (1) knowledge, (2) appreciation, (3) the voluntary encounter. . . . When Farley abolished voluntary assumption of risk, it terminated the whole doctrine, all three elements. The contention now is that the first and second elements (knowledge and appreciation by the plaintiff) in some way survived Farley and Rosas . . . and still live under the name of “no duty.” Voluntary assumption of risk included and is inseparable from no-duty. Our decision in Farley was that the three factors which comprise the doctrine of voluntary assumption of risk (including the plaintiff’s knowledge and appreciation) should be measured by the reasonableness of the actor’s conduct. In other words, we held that the action should be decided upon principles of negligence.
Parker, supra,
As we interpret this passage from Parker, the Texas court considered Farley to have completely undercut the basis of the no duty doctrine and to have instituted negligence principles as the basis for the trial of premises liability cases. See id., at 519-20 and cases there cited. Thus Parker only made explicit the implied holding of Farley that no duty principles no longer controlled land occupier cases. 6 We conclude, therefore, that the Texas Supreme Court would apply Parker retroactively to cases tried after Farley. 7
Huber urges that the directed verdict was appropriate even if
Parker
is applied retroactively to require decision of this case under negligence principles. Negligence is a question of fact to be determined by the jury. The district judge made no findings as to the sufficiency of plaintiffs’ evidence to support a negligence ver
*798
diet. In reviewing a directed verdict the appellate court is limited to deciding whether the trial court properly substituted its judgment for the jury’s.
See, e. g., U. S. v. Terrey,
REVERSED and REMANDED.
Notes
. Tex.Rev.Civ.Stat.Ann. arts. 4671 — 4677.
. Comparative negligence applies to cases tried after the adoption of the comparative negligence statute in 1973. See Tex.Rev.Civ.Stat. Ann. art. 2212a.
. Huber cites numerous cases for the proposition that changes in Texas law are generally considered to be prospective.
See, e. g., Coastal Industrial Water Authority v. Trinity Portland Cement Co.,
.
See, e. g., Huddleston v.
Dwyer,
. Professor Moore argues that
Vandenbark
should not be applied reflexively. Rather, federal courts should ascertain not only current state law but also the effect the state court would give an intervening change in law.
See
1A J. Moore, supra, ¶ 0.307[3], p. 3319. At least one federal appellate court has held that
Vandenbark
does not permit the federal court to go beyond ascertaining current state law to
*797
determine whether the state court would treat its own decision as having retroactive effect.
See Nelson v. Brunswick Corp.,
supra,
. Dicta in
Abalos v. Oil Development Co. of Texas,
. In
Bullington v. Texas Elec. Serv. Co.,
