Defendant Keith Gray appeals from a summary judgment of the Orleans Superior Court enforcing a New York judgment in favor of plaintiff Agway, Inc. Gray contends the court erred in ruling that his counterclaims for consequential damages were barred by the New York judgment entered on an arbitration award. We affirm.
Agway, whose principal place of business is in Syracuse, New York, sold to Gray and installed at his farm in Holland, Vermont an automated milking parlor. The two contracts of sale contained identical arbitration clauses providing that:
*315[a]ny controversy or claim relating to this agreement shall be settled by arbitration in Syracuse, New York, in accordance with the rules of the American Arbitration Association, and any judgment upon any award rendered by the arbitrators may be entered in any court having jurisdiction thereof. The determination of the arbitrators shall be final and binding upon both parties.
The contracts also contained a waiver of any claim against Agway for incidental or consequential damages of any nature.
Installation and modification of the equipment was completed early in 1992. Alleging that Gray had paid no part of the bill, Agway demanded payment in October 1992, and thereafter filed a demand for arbitration under the contracts.
Gray was represented by counsel in the arbitration proceeding and actively contested Agway’s claim. He contended that the milking equipment was defective, that he had lost income from decreased milk production, and that he had incurred expenses to replace cows allegedly injured by the milking parlor. Gray sought an offset against the sale price for the reduced value of the defective milking equipment (his lost benefit of the bargain) of approximately $18,000, as well as an offset for' his consequential damages, which allegedly exceeded $125,000.
In connection with his claim for consequential damages, Gray asserted that the contract clause excluding such damages was unenforceable for two reasons. First, he argued that the exclusion had “fail[ed] of its essential purpose.” N.Y. U.C.C. § 2-719(2) (McKinney 1993). Second, he asserted that the exclusion was “unconscionable” under N.Y. U.C.C. § 2-719(3), which provides: “Consequential damages may be limited or excluded unless the limitation or exclusion is unconscionable.” Gray argued in this regard that the parties enjoyed vastly unequal bargaining power (“Gray was an individual dairy farmer dealing with a large commercial operation”) and that the agreement was a classic contract of adhesion; it had been presented on a preprinted form prepared by Agway, and its effect was never explained. Gray cited a number of legal authorities in support of his claim, including Cayuga Harvester, Inc. v. Allis-Chalmers Corp., 465 N.Y.S.2d 606 (App. Div. 1983), and Clark v. International Harvester Co., 581 P.2d 784 (Idaho 1978).
Following the hearing, the arbitrator reduced Agway’s claims by $15,950 attributable to defective materials in the milking parlor, but-found no merit to Gray’s claim for consequential damages, and *316accordingly entered an award of $57,945 in Agway’s favor. In response to Gray’s motion for modification, the arbitrator reduced the award to $56,945. The New York Supreme Court for Onondaga County subsequently granted Agway’s motion to confirm the award and entered judgment in favor of Agway in the amount of $58,048.18 (the award plus interest). Gray neither appealed nor otherwise sought to modify the award in New York.
Agway thereafter brought this action in the Orleans Superior Court to enforce the New York judgment. Gray moved to stay enforcement of the judgment, arguing that the arbitrator had lacked jurisdiction to hear any counterclaim or defense relating to the unconscionability of the consequential-damages exclusion. He also asserted counterclaims for breach of warranty and negligence, seeking consequential damages of $300,000. Following a hearing, the trial court granted Agway’s motion to dismiss the counterclaims and entered summary judgment in favor of Agway, ruling that Gray’s counterclaims were barred under principles of res judicata. This appeal followed.
The principle of res judicata, or claim preclusion, “ ‘bars litigation of claims or causes of action which were or might properly have been litigated in a previous action.’” State v. Dann, 167 Vt. 119, 125, 702 A.2d 105, 109 (1997) (quoting Cold Springs Farm Dev., Inc. v. Ball, 163 Vt. 466, 472, 661 A.2d 89, 93 (1995)). The related doctrine of collateral estoppel, or issue preclusion, “prevents a party from relitigating an issue that has necessarily been decided in a previous action.” Cold Springs Farm, 163 Vt. at 468, 661 A.2d at 91. The core inquiry in either case is whether there was a “full and fair opportunity to litigate” the matter in the earlier action. Id. at 469, 661 A.2d at 91. As one court has succinctly explained: “The doctrine of res judicata is based upon requirements of justice and public policy which reflect the consideration that there be an end to litigation after each party has had a full and fair opportunity to present all pertinent facts.” Kemlingn Country Mut. Ins. Co., 437 N.E.2d 1253, 1255 (Ill. App. Ct. 1982).
For purposes of both res judicata and collateral estoppel, it is widely accepted that an arbitration is in the nature of a judicial inquiry, and thus has the same force and effect of an adjudication in terms of precluding the same parties from relitigating the same subject. See, e.g., Restatement (Second) of Judgments § 84(1) (1982) (“[A] valid and final award by arbitration has the same effects under the rules of res judicata, subject to the same exceptions and qualifications, as a judgment of a court.”); SCAC Transport (USA) Inc. v. *317S.S. Danaos, 845 F.2d 1157, 1163 (2d Cir. 1988) (arbitration decision can have collateral estoppel or res judicata effect when arbitration ‘“affords basic elements of adjudicatory procedure”’) (quoting Greenblatt v. Drexel Burnham Lambert, Inc., 763 F.2d 1352, 1360 (11th Cir. 1985)); Sanders v. Washington Metro. Area Transit Auth., 819 F.2d 1151, 1157 (D.C. Cir. 1987) (“[T]he decisions of an arbitrator can have res judicata (claim preclusion) or collateral estoppel (issue preclusion) effect on a subsequent law suit.”); Herriford v. Boyles, 550 N.E.2d 654, 658 (Ill. App. Ct. 1990) (“A valid arbitration award has all the force of an adjudication, and precludes the parties from again litigating the same matters.”); Bailey v. Metropolitan Property & Liab. Ins. Co., 505 N.E.2d 908, 910 (Mass. App. Ct. 1987) (“An arbitration decision can have preclusive effect. . . . ”); Aufderhar v. Data Dispatch, Inc., 452 N.W.2d 648, 651 (Minn. 1990) (“Most courts have considered an arbitration award to constitute a ‘prior adjudication’ for purposes of triggering an estoppel.”).
In deciding whether to give preclusive effect to an arbitration, the key inquiry remains whether the parties were afforded a full and fair opportunity to litigate. See Kemling, 437 N.E.2d at 1257 (Collateral estoppel applies to issue decided in arbitration if “the party against whom the estoppel is asserted had a full and fair opportunity to contest it at that time.”); Bailey, 505 N.E.2d at 910 (“When arbitration affords opportunity for presentation of evidence and argument substantially similar in form and scope to judicial proceedings, the award should have the same [preclusive] effect. . . .”).
Here, the record shows that Gray not only had the opportunity to litigate the consequential damage issue, but took full advantage of that opportunity. He acceded to the arbitration, was represented by counsel, and vigorously challenged the validity of the consequential-damage exclusion, citing both facts and law in support of his claim that the clause was unenforcable. Indeed, he acknowledged in his post-hearing arbitration memorandum that he had been “afforded the opportunity to introduce witnesses and evidence in support of [his] positions and to cross-examine the witnesses called by the other party.”
In its decision, the arbitrator expressly rejected Gray’s claim that the exclusionary clause had failed of its essential purpose, ruling that it was valid and enforceable. Gray now notes that the decision does not also expressly reject the unconscionability claim. He fails to explain, however, why he apparently never sought clarification of the ruling, as he was entitled under New York law. N.Y. Civ. Prac. L. & R. *3187509 (McKinney 1980). Although he filed a request to modify the award, he apparently did not seek a more explicit ruling on this issue. Moreover, when Agway subsequently moved to confirm the award in New York, Gray neither opposed the motion nor filed his own cross-motion to vacate, amend, or modify the award on the basis that the decision failed to explicitly address an issue fully litigated in the arbitration proceeding, as he was equally entitled under New York law and practice. Id. 7511(b)(1)(iii); PPX Enters, v. Scepter Records, Inc., 381 N.Y.S.2d 263, 265 (App. Div. 1976) (award was so unresponsive to issues posed in arbitration as to require that it be remanded). Nor, finally, did Gray ever appeal from the judgment entered on the award in New York.
Under these circumstances, we have little difficulty concluding that Gray was afforded a full and fair opportunity to litigate the issue of consequential damages in the arbitration proceeding, that the judgment entered on that arbitration was final and conclusive of the issue, and that neither justice nor public policy would be served by allowing him to relitigate the same issue against the same party in Vermont.
The dissent raises two objections to this conclusion. First, it contends that Gray was somehow denied the same opportunity to challenge the validity of the damage exclusion in the New York arbitration that he would have received in a Vermont court. On the contrary, the law of New York is clear that an arbitrator enjoys broad authority to reject a contractual damage limitation as unconscionable:
The fact that the contracts contain a limitation of liability does not eliminate the question of consequential damages as a controversy or claim within the scope of the arbitration clause. Issues concerning the applicability of the damage limitation clause, its enforceability in this particular instance, its validity, and any other issues concerning the question of the amount of damages recoverable in the face of ' such provision are for the arbitrator to determine.
Allen Knitting Mills, Inc. v. Dorado Dress Corp., 333 N.Y.S.2d 848, 850 (App. Div. 1972). As New York’s highest court has observed, ‘“[tjhere is no doubt that an arbitrator, if he so decides, may indeed refuse to enforce such a damage limitation clause on the ground of unconscionability . . . . ’” Id. at 851 (quoting Granite Worsted Mills v. Aaronson Cowen, Ltd., 255 N.E.2d 168, 171 (N.Y. 1969). Thus, the *319arbitrator’s scope of review and discretion to reject the'damage-limitation clause as unconscionable was as broad as any court in New York or Vermont.
The dissent appears to suggest nevertheless that Vermont and New York law differ in this regard, and that a Vermont court would have been more protective of Gray’s rights. The dissent cites no authority for this proposition, however, and our recent case law indicates that Vermont takes the identical approach to determining the validity of exclusionary clauses under U.C.C. § 2-719(3) as jurisidietions elsewhere. See Wilk Paving, Inc. v. Southworth-Milton, Inc., 162 Vt. 552, 559, 649 A.2d 778, 783 (1994) (rejecting plaintiff’s claim of unconscionability under 9A V.S.A. § 2-719(3) and upholding contractual exclusion of consequential damages notwithstanding plaintiff’s claim of oppression and surprise).
Finally, the dissent suggests that the counterclaim for consequential damages was not barred in Vermont because in New York counterclaims are permissive rather than compulsory. The distinction would be relevant if the assertion here were that Gray could have, but failed to, litigate the claim in New York. See Cold Springs Farm, 163 Vt. at 472-73, 661 A.2d at 93. In this case, however, the claim was actually litigated between the parties. Hence, it is plainly barred. Id.
Affirmed.