Appellants appeal from a trial court order granting Respondent Corbett Mizzell summary judgment, thereby dismissing Appellants’ third party complaint.1 We affirm.
The underlying dispute arises from a motor vehicle accident in December 2012 in Saluda County in which Respondent Walter Smith was injured. Smith settled with Mizzell for the policy limits of Mizzell’s liability coverage in exchange for a covenant not to execute. Smith then sued Appellants, claiming Appellants’ negligence was a proximate cause of the accident. The issue before this Court stems from Appellants’ efforts to have Mizzell added as a defendant. In the South Carolina Contribution Among Joint Tortfeasors Act (Act), the legislature abrogated pure joint and several liability for tortfeasors *553who are less than fifty percent at fault. The Act directs the fact-finder to apportion one-hundred percent of the fault between the plaintiff and “each defendant whose actions are the proximate cause of the indivisible injury.” S.C. Code Ann. § 15-38-15(0(3) (Supp. 2016).
Appellants urged the trial court to construe the Act, with a helping hand from our rules of civil procedure, to permit the addition of Mizzell as a defendant. The trial court rejected Appellants’ various arguments and, in granting Mizzell summary judgment, applied the Act as written. In affirming the trial court, we are likewise constrained by the plain meaning of the unambiguous language in the Act. While we appreciate the equity-driven argument of Appellants, we must honor legislative intent as clearly expressed in the Act, lest we run afoul of separation of powers.
J—<
This case anses out of an automobile collision that occurred on U.S. 178 in Saluda County in December 2012. Defendant Norman Tiffany was a commercial driver employed by Brown Trucking Co. (Brown Trucking) and Brown Integrated Logistics, Inc. (Brown Logistics), which owned and operated Tiffany’s commercial vehicle. On the morning of the accident, Tiffany’s commercial vehicle was disabled and parked along the shoulder of U.S. 178, adjacent to the exit of a gas station. Mizzell had stopped at the gas station, and as he attempted to exit the parking lot, his view of oncoming traffic was obstructed by Tiffany’s truck positioned alongside the highway. According to Mizzell, because the truck was obstructing his view, he “eased forward to get a better view of oncoming traffic,” and at that point his vehicle collided with the vehicle of Respondent Walter Smith who was traveling down U.S. 178.
Mizzell’s liability carrier tendered the limits of Mizzell’s liability policy to Smith. In return, Smith signed a covenant not to execute in favor of Mizzell. Thereafter, Smith filed suit against Tiffany, Brown Trucking, and Brown Logistics, alleging his injuries were proximately caused by Tiffany’s negligent positioning of the commercial motor vehicle which completely obstructed the view of vehicles attempting to exit the gas station. Smith alleged that since Tiffany was acting within the *554course and scope of his employment at the time of the accident, Brown Trucking and Brown Logistics were liable under the doctrine of respondeat superior. In addition to claiming Tiffany was negligent, Smith’s complaint also alleged three other causes of action specifically against Brown Trucking and Brown Logistics: (1) negligent entrustment; (2) negligent hiring, supervision, and retention; and (3) negligent maintenance. Essentially, Smith alleged Brown Trucking and Brown Logistics were negligent in entrusting Tiffany with a commercial motor vehicle despite knowing Tiffany lacked proper training, experience, and knowledge of state and federal laws governing the parking and standing of commercial motor vehicles and that Brown Trucking and Brown Logistics were negligent in failing to ensure the commercial motor vehicle Tiffany drove was properly inspected and maintained to ensure the vehicle’s hazard equipment functioned appropriately.
In their answer, Brown Trucking and Brown Logistics (collectively “Appellants”) raised, in a shotgun approach, numerous affirmative defenses seeking to have Mizzell added as a defendant, including “Fault of Others” and “Failure to Join Indispensable Party/Rule 19 SCRCP.” Appellants also asserted a third-party complaint under Rule 14, SCRCP, naming Mizzell as a third-party defendant. The gist of Appellants’ third-party claims was that Mizzell was responsible for a significant portion of the plaintiffs injuries and that Appellants were therefore entitled to a determination of Mizzell’s proportion of the fault, even though Mizzell had already settled with the plaintiff and was immune from further liability. Appellants' third-party complaint offered several alternative theories to justify apportioning fault to Mizzell: (1) a declaratory judgment cause of action seeking a determination as to Mizzell’s portion of liability; (2) a standalone cause of action under section 15-38-15 of the Act seeking apportionment of fault to Mizzell; (3) joinder of Mizzell as an indispensable party under Rule 19, SCRCP; (4) third-party negligence under Rule 14, SCRCP; and (5) the due process clauses of the United States and South Carolina constitutions. Appellants concede Mizzell did not breach any duty of care owed to them; rather, Appellants assert they are entitled to apportionment based on an independent contribution claim against Mizzell.
*555Mizzell filed a motion for summary judgment as to Appellants’ third-party claims. Specifically, Mizzell contended he was entitled to judgment as a matter of law on Appellants’ third-party claims because he neither owed nor breached any duty to Appellants as third-party plaintiffs. Mizzell further contended that section 15-38-50 of the Act discharged him a settling tortfeasor from liability for contribution to any other tortfeasor.
The trial court granted summary judgment and dismissed the third-party claims against Mizzell. As to the third-party negligence claim, the trial court found Mizzell was entitled to judgment as a matter of law because there was no evidence that Mizzell breached any duty owed to Appellants or that Appellants suffered any damages purportedly caused by Miz-zell. The trial court further found there was no basis for adding Mizzell as a party, reasoning that Mizzell’s inclusion in the action was not necessary for the just adjudication of Smith’s claims under Rule 19, SCRCP, that the third-party complaint was not proper under Rule 14, SCRCP, and that Appellants’ due process rights were not violated by the inability to join Mizzell or include him on the verdict form for purposes of allocation. This direct appeal followed.
II.
On appeal, Appellants contend the trial court erred in failing to permit Mizzell to be named as a party and included on the verdict form so as to enable the jury to include Mizzell in the apportionment of fault for the accident. Appellants contend their claim derives from the statutory language added to the Act in 2005. At the outset, we note Appellants do not contend that any provision of the Act is ambiguous.
It is axiomatic that statutory interpretation begins (and often ends) with the text of the statute in question. See Timmons v. S.C. Tricentennial Comm’n, 254 S.C. 378, 401, 175 S.E.2d 805, 817 (1970) (“If a statute is clear and explicit in its language, then there is no need to resort to statutory interpretation or legislative intent to determine its meaning.”); see also Transp. Ins. Co. v. S.C. Second Injury Fund, 389 S.C. 422, 429, 699 S.E.2d 687, 690 (2010) (“The text of a statute as drafted by the legislature is considered the best evidence of *556the legislative intent or will.” (citing Hodges v. Rainey, 341 S.C. 79, 85, 533 S.E.2d 578, 581 (2000))). Absent an ambiguity, there is nothing for a court to construe, that is, a court should not look beyond the statutory text to discern its meaning. “[Tjhere is no occasion for employing rules of statutory interpretation and the court has no right to look for or impose another meaning” unless a statutory provision is ambiguous. Paschal v. State Election Comm’n, 317 S.C. 434, 436, 454 S.E.2d 890, 892 (1995) (citing Miller v. Doe, 312 S.C. 444, 441 S.E.2d 319 (1994)); see also Tilley v. Pacesetter Corp., 355 S.C. 361, 373, 585 S.E.2d 292, 298 (2003) (observing that unless a statute is ambiguous, “the application of standard rules of statutory interpretation is unwarranted”). Only “[w]here the language of an act gives rise to doubt or uncertainty as to legislative intent” may the construing court “search for that intent beyond the borders of the act itself.” Kennedy v. S.C. Ret. Sys., 345 S.C. 339, 348, 549 S.E.2d 243, 247 (2001) (citing Lite House, Inc. v. J.C. Roy Co., 309 S.C. 50, 53, 419 S.E.2d 817, 819 (Ct. App. 1992)).
In light of these well-established rules of statutory interpretation, we are unwilling to accept Appellants’ invitation to look outside the text of the Act to justify the assumption that the legislature’s use of differing terms—“defendants” and “potential tortfeasors”—in section 15-38-15 was not deliberate or that those words mean anything other than what they say. See Hodges, 341 S.C. at 87, 533 S.E.2d at 582 (“If the legislature’s intent is clearly apparent from the statutory language, a court may not embark upon a search for it outside the statute.” (citing Abell v. Bell, 229 S.C. 1, 91 S.E.2d 548 (1956))); see also CFRE, LLC v. Greenville Cty. Assessor, 395 S.C. 67, 74, 716 S.E.2d 877, 881 (2011) (“[T]he words found in the statute [must be given] their ‘plain and ordinary meaning ’ ” and “if the words are unambiguous, we must apply their literal meaning.” (quoting Sloan v. Hardee, 371 S.C. 495, 498, 640 S.E.2d 457, 459 (2007))).
We acknowledge that achieving a more fair apportionment of damages among joint tortfeasors was one of the policy goals underlying the legislature’s enactment of the Act. We disagree that fair apportionment was the only underlying policy goal. Indeed, when the Act is read as a whole, with each section and subsection given effect, it is apparent that the *557legislature was not solely attempting to protect nonsettling defendants. Rather, the legislature was attempting to strike a fair balance for all involved—plaintiffs and defendants—and to do so in a way that promotes and fosters settlements. See Riley v. Ford Motor Co., 414 S.C. 185, 196, 777 S.E.2d 824, 830 (2015) (“[T]he Act represents the Legislature’s determination of the proper balance between preventing double-recovery and South Carolina’s ‘strong public policy favoring the settlement of disputes.’ ” (quoting Chester v. S.C. Dep’t of Pub. Safety, 388 S.C. 343, 346, 698 S.E.2d 559, 560 (2010))); Centex Int’l, Inc. v. S.C. Dep’t of Revenue, 406 S.C. 132, 139, 750 S.E.2d 65, 69 (2013) (“ ‘[T]he statute must be read as a whole and sections which are a part of the same general statutory law must be construed together and each one given effect.’” (quoting S.C. State Ports Auth. v. Jasper County, 368 S.C. 388, 398, 629 S.E.2d 624, 629 (2006))); see also S.C. Code Ann. § 15-38-50(2) (2005 & Supp. 2016) (providing that a settling tortfeasor, by virtue of his good-faith settlement with the claimant, is not liable for contribution to any other tortfeasor).
Specifically, the Act sets forth in section 15-38-15(B) and (C) a detailed method for apportioning fault “among defendants.” Further, and perhaps in recognition of the perceived inequity complained of by Appellants, the General Assembly took steps to protect nonsettling defendants by codifying a nonsettling defendant’s right to argue the so-called empty chair defense in subsection (D) and, in subsection (E), the right to offset the value of any settlement received prior to the verdict—a right which arises by operation of law and is not within the discretion of the courts. See Smith v. Widener, 397 S.C. 468, 472, 724 S.E.2d 188, 190 (Ct. App. 2012) (holding a nonsettling defendant’s right to setoff arises by operation of law, and it is not within the discretion of the trial court to apply setoff). Thus, a critical feature of the statute is the codification of the empty chair defense—a defendant “retain[s] the right to assert another potential tortfeasor, whether a party or not, contributed to the alleged injury or damages”— which necessarily contemplates lawsuits in which an allegedly culpable person or entity is not a party to the litigation (hence the chair in question being “empty”).2
*558When the statutory provisions are construed as a whole—the legislature’s use of the differing terms “defendants” in subsections (B) and (C) and “potential tortfeasor, whether or not a party” in subsection (D) with the mandatory offset in subsection (E)—the clear intent of the General Assembly is not ambiguous and does not allow for the result sought by Appellants.3 Rather, were we to accept Appellants’ argument, and vary from the provisions of the Act in this case to purportedly enhance the prospects of a more equitable result in this case, we would create a host of concerns, for Appellant’s desired result would require (1) a plaintiff to maintain a suit against someone with whom he has already settled; (2) a settling defendant to defend a lawsuit he has already settled; (3) this Court to ignore the legislature’s express acknowledgement in section 15-38-15(D) that not all potential tortfeasors will necessarily be parties to the suit; and *559(4) would create a conflict with other provisions of the Act, including sections 15-38-15(E) and 15-38-50(1), which address a nonsettling defendant’s right to setoff. The most prominent obstacle to Appellants’ approach is separation of powers, for we must defer to the will of the legislature as expressed in the Act. If the policy balance struck by the legislature in Act is to be changed, that prerogative lies exclusively within the province of the Legislative Branch.
HH >—I
While we have not had occasion to address the precise question prior to today, today’s result is dictated by the Act. The General Assembly in the Act struck the balance among competing policy concerns it deemed appropriate. We defer to the policy decisions of the General Assembly. For example, in Riley v. Ford Motor Co., we noted that a nonsettling defendant may not “fashion[ ] and ultimately extract[ ] a benefit from the decisions of those who do [settle].” 414 S.C. at 197, 777 S.E.2d at 831 (explaining “[i]f the position of a nonsettling defendant is worsened by the terms of a settlement, this is the consequence of a refusal to settle”).
If our mission were simply to achieve equity on a case by case basis, we would not necessarily disagree with Appellants and the dissent. But wherever the balance is struck, one can easily imagine scenarios where the result may be inequitable. The point remains—absent a constitutional prohibition, where the General Assembly has spoken and established policy, separation of powers demands that courts honor the legislative policy determination. Moreover, Appellants’ proposed result, advanced by the dissent, would turn the Act on its head to benefit nonsettling defendants at the expense of plaintiffs and those who do settle. That is not the balance the General Assembly struck in the Act. In honoring separation of powers, we adhere to the principle that a court must not reject the legislature’s policy determinations merely because the court may prefer what it believes is a more equitable result.
As explained by this Court in Machin v. Carus Corp., 419 S.C. 527, 799 S.E.2d 468, 2017 WL 1489051 (2017), a plain reading of the words “defendant” and “defendants” in section *56015-38-15(C) reveals the legislature’s intent to allow “only a ‘defendant’ or ‘defendants’ to be listed on the jury form and included in the allocation of fault.” Id. at 545, 799 S.E.2d at 478. In reaching this conclusion, we examined the recent decision of Walker v. Tensor Machinery Ltd., 298 Ga. 297, 779 S.E.2d 651 (2015), in which the Supreme Court of Georgia held that a jury may assess a percentage of fault to an immune nonparty. Critical to the Walker analysis was the language in the relevant Georgia statute, which provides “[i]n assessing percentages of fault, the trier of fact shall consider the fault of all persons or entities who contributed to the alleged injury or damages, regardless of whether the person or entity was, or could have been, named as a party to the suit.” Georgia Code Ann. § 51-12-33(c) (emphasis added). In light of this language, as we observed in Machin, the result in Walker is understandable based on the Georgia statute. However, in stark contrast to the Georgia statute, our legislature determined that fault may be allocated only to “the plaintiff and to the defendants” and requires that “the total of the percentages of fault attributed to the plaintiff and to the defendants must be one hundred percent.” S.C. Code Ann. § 15-38-15(C)(3). Thus, guided by the language of the Act and with respect for the legislature’s prerogative, this Court held that fault may not be apportioned to an immune nonparty under the Act. Machin, 419 S.C. at 545-47, 799 S.E.2d at 478.
IY.
And finally, we reject the implication that a rule of civil procedure somehow trumps the Act. Appellants rely on Rules 14 and 19, SCRCP, to support the addition of Mizzell to the underlying litigation and inclusion on the verdict form.
Rule 14 provides “a defending party, as a third-party plaintiff, may cause a summons and complaint to be served upon a person not a party to the action who is or may be liable to him for all or part of the plaintiffs claim against him.” Rule 14(a), SCRCP (emphasis added). Consequently, a non-party is subject to impleader only if there is a basis to assert he is liable to the named defendant(s) for all or part of the plaintiffs claim. The question becomes: is Mizzell subject to liability to Appellants for all or part of Smith’s claim against Appel*561lants? Under these circumstances, the legislature has answered the question in the negative.
The analysis is straightforward. Mizzell is not subject to liability for any part of Smith’s claims based on the covenant not to execute he obtained from Smith. The covenant not to execute included language protecting Mizzell from any further liability to Smith in excess of the agreed-upon settlement amount. Even though, by its terms, a covenant not to execute discharges the settling tortfeasor’s liability only as to the plaintiff, in section 15-38-50 the legislature expanded the scope of a settling tortfeasor’s immunity to include protection from liability to nonsettling tortfeasors. Specifically, section 15-38-50 provides that “[w]hen a release or covenant not to sue or not to enforce judgment is given in good faith to one of two or more persons liable in tort for the same injury ... it discharges the tortfeasor to whom it is given from all liability for contribution to any other tortfeasor.” (emphasis added). Thus, by the terms of the covenant not to execute, Mizzell has no additional liability to Smith, and Mizzell is also immune from any liability to non-settling alleged tortfeasors Tiffany, Brown Trucking, and Brown Logistics by virtue of section 15-38-50. Absent any potential liability to either the plaintiff or to nonsettling defendants, impleader under Rule 14 is not proper. First Gen. Servs. of Charleston, Inc. v. Miller, 314 S.C. 439, 442, 445 S.E.2d 446, 447 (1994) (“The outcome of the principal claim must impact the third-party defendant’s liability; however, no right exists to implead a third-party defendant who is directly liable to the plaintiff.”).
Moreover, there is no basis for joinder of Mizzell under Rule 19, SCRCP, which provides in relevant part:
(a) Persons to Be Joined if Feasible. A person ... shall be joined as a party in the action if
(1) in his absence complete relief cannot be accorded among those already parties, or
(2) he claims an interest relating to the subject of the action....
(emphasis added).4 It is the italicized language in subsection (a)(1) upon which Appellants rely. Specifically, Appellants *562contend that by refusing to include Mizzell in the apportionment of fault under section 15-38-15(0), the percentage of fault allocated to and among the nonsettling defendants would be distorted and may result in the unwarranted imposition of joint and several liability. This result, Appellants claim, is contrary to the legislative intent underlying section 15-38-15(A), which abrogated joint and several liability for any defendant whose conduct is determined to be less than fifty percent of the total fault. Thus, Appellants claim Mizzell is a necessary party and must be joined as a party defendant under Rule 19,
Prior to the 2005 revisions to the Act, it was well-established that “ ‘[additional parties are not necessary to a complete determination of [a] controversy unless they have rights which must be ascertained and settled before the rights of the parties to the suit can be determined.’ ” Doctor v. Robert Lee, Inc., 215 S.C. 332, 335, 55 S.E.2d 68, 69 (1949) (quoting Phillips v. Clifton Mfg. Co., 204 S.C. 496, 502, 30 S.E.2d 146, 148 (1944)). “If the defendant and the parties sought to be brought in were joint tort-feasors, the decisions of this Court are clear to the effect that [the] defendant would have no right to bring in as an additional defendant a joint tortfeasor who was not made a party by the plaintiff.” Simon v. Strock, 209 S.C. 134, 138, 39 S.E.2d 209, 211 (1946). Accordingly, mere joint tortfeasors are not necessary or indispensable parties to an action under Rule 19, SCRCP.
Throughout the years, this Court has offered various reasons for refusing to allow defendants to bring in alleged joint tortfeasors a plaintiff has opted not to sue. Perhaps most often cited is the “plaintiff chooses” rule: “one who is injured by the wrongful act of two or more joint tort-feasors has an election or option to sue each of such tort-feasors separately or to join them as parties in a single action.” Simon, 209 S.C. at 138, 39 S.E.2d at 211. “The election or option referred to is given to the plaintiff and not to the defendant.” Id. at 138, 39 S.E.2d at 211. “To allow a defendant against the will of the plaintiff to bring in other joint tortfeasors as defendants would deny the plaintiff the right to name whom he should sue,” Doctor, 215 *563S.C. at 335, 55 S.E.2d at 69. The “plaintiff has the choice of designating the party who she claims committed the tort alleged in the complaint.” Simon, 209 S.C. at 139, 39 S.E.2d at 211. “She should not be required to sue someone against whom she makes no claim.” Id. Indeed, this right of the plaintiff to choose her defendant has been recognized in South Carolina jurisprudence for almost two hundred years. Little v. Robert G. Lassiter & Co., 156 S.C. 286, 287, 153 S.E. 128, 128 (1930).
Despite the frequency with which courts have cited the plaintiff chooses rule as a basis for refusing improper joinder over the last two centuries, our courts have also offered various other justifications for refusing to join parties whom the plaintiff has opted not to sue, including that the plaintiffs complaint includes no allegations of any liability on the part of the unnamed parties, that the unnamed parties do not claim any interest in the controversy, and that the defendant may be found liable to the plaintiff regardless of whether the unnamed joint tortfeasors are made parties. Robbins v. First Fed. Sav. Bank, 294 S.C. 219, 223, 363 S.E.2d 418, 421 (Ct. App. 1987); see also Simon, 209 S.C. at 139-40, 39 S.E.2d at 211. We have also held that parties who are not subject to liability by virtue of settlement or statutory immunity are not properly added as party defendants. Chester, 388 S.C. at 346, 698 S.E.2d at 560 (noting the “strong public policy favoring the settlement of disputes”); Simon, 209 S.C. at 140, 39 S.E.2d at 211. We have also found joinder is not necessary where the named defendant will not be subject to multiple or inconsistent obligations and the rights of the non-party will not be impaired if he is not joined as a party defendant. Robbins, 294 S.C. at 223, 363 S.E.2d at 421.
Notably, our courts have also observed a number of times that joinder of an unnamed potential tortfeasor is unnecessary based on common law principles of joint and several liability— namely, that an unnamed joint tortfeasor is not a necessary party to the suit “[sjinee a joint tort-feasor is severally liable for the entire damage.” S.C. Dep’t of Health & Envtl. Control v. Fed-Serv Indus., Inc., 294 S.C. 33, 362 S.E.2d 311 (Ct. App. 1987) (explaining “the joint tort-feasor with joint and several liability remains merely a permissive party”).
*564It is this particular justification that Appellants claim was eviscerated by the 2005 amendments to the Act. Although this argument was not specifically raised to or ruled upon by the trial court, Appellants now argue that because pure joint and several liability is no longer recognized in all instances, the absence of Mizzell as a party defendant precludes their ability to receive a fair trial and renders the court unable to “accord complete relief’ among those already parties. Thus, Appellants contend Mizzell is a necessary party and must be joined under Rule 19.
To accept this argument would be inconsistent with this Court’s decision in Chester v. South Carolina Department of Public Safety, in which we unanimously reaffirmed—after the 2005 amendments to the Act—the well-established right of the plaintiff to choose “which co-tortfeasor(s) she will sue.” 388 S.C. at 346, 698 S.E.2d at 560. In reaffirming the plaintiff chooses rule in Chester, we explained, “[w]e are not persuaded that the General Assembly, in enacting § 15-78-100(c) ... intended to abrogate the tort plaintiffs right to choose her defendant.” Id. Indeed, “statutes in derogation of the common law are to be strictly construed,” and therefore this Court found it was constrained to construe the scope of the newly enacted statute entitling a Tort Claims Act defendant to a proportionate verdict as not restricting common law principles beyond the clear intent of the legislature. Id.; see also Grier v. AMISUB of S.C., Inc., 397 S.C. 532, 536, 725 S.E.2d 693, 696 (2012) (observing “a statute restricting the common law will ‘not be extended beyond the clear intent of the legislature’ ” (quoting Crosby v. Glasscock Trucking Co., 340 S.C. 626, 628, 532 S.E.2d 856, 857 (2000)). This Court is similarly constrained to strictly construe the scope of the 2005 amendments to the Act insofar as they alter the common law. We find nothing in the text of the Act that evinces a clear legislative intent to abrogate two centuries of common law establishing a plaintiffs right to choose which tortfeasors, if any, she will sue. We additionally note the legislature did not overrule or otherwise respond to Chester by amending either the Act or the Tort Claims Act. We conclude that absent explicit and unmistakable legislative intent to abrogate this well-established right, a joint tortfeasor remains merely a permissive party and joinder *565under Rule 19 is not required for complete relief to be accorded.
Y.
In sum, based on the unambiguous language in the Act, we affirm the trial court’s dismissal of Appellants’ third party complaint. Our decision is the result of determining and honoring legislative intent. We respectfully reject Appellants’ invitation to adopt a result that comports with their sense of equity. We construe the statute in a manner to give effect to the policy decision made by the legislature. Is the policy decision advanced by Appellants, and adopted by the dissent, equitable and defensible? Absolutely. Could the legislature have drafted the statute to achieve the result desired by Appellants? Absolutely. But the policy decision belongs to the legislature, and the legislature has crafted the provisions of the Act as it sees fit. We are a court, not a legislative body. That a court may disagree with a legislative body’s policy decisions or believe a perceived “more fair” outcome exists is of no moment.
AFFIRMED.
BEATTY, C.J., FEW, J., and Acting Justice James E. Moore, concur. Acting Justice Costa M. Pleicones, dissenting in a separate opinion.. Appellants also appeal a trial court order granting Respondent Walter Smith’s motion to quash Appellants' notice of deposition of Smith. We decline to address this issue because a discovery order is ordinarily not immediately appealable, and the issue ”lack[s] a sufficient nexus or companionship to justify this Court’s exercise of immediate appellate review.” Browiz v. Cnty. of Berkeley, 366 S.C. 354, 362 n.5, 622 S.E.2d 533, 538 n.5 (2005) (recognizing courts may accept appeals of interlocutory orders not ordinarily immediately appealable when appealed with a companion issue proper for review, but declining to so where the issues appealed lack a sufficient nexus); see also Grosshuesch v. Cramer, 377 S.C. 12, 31, 659 S.E.2d 112, 122 (2008) (noting discovery orders are interlocutory and not immediately appealable).
. In minimizing the significance of the empty chair defense, which the General Assembly itself deemed substantial enough to warrant codifica*558tion, the dissent’s allegations of inequity presuppose that the fact-finder will return a verdict for the plaintiff. The dissent ignores that the plaintiff’s burden to plead and prove her case remains. Smith must not only prove Appellants’ negligence, but also that such negligence was a proximate cause of the accident. A defense verdict remains a viable option, and we reject the suggestion that the empty chair defense is an exercise in futility. In any event, this is the approach sanctioned by the General Assembly in the Act.
. Although the trial court did not specifically rule upon Appellants’ claim that a standalone cause of action for apportionment exists under section 15-38-15(C), based on the considerable litigation surrounding that issue in state and federal courts throughout South Carolina, we take this opportunity, in the interest of judicial economy and for the benefit of the bench and bar, to reject the argument that section 15-38-15(C) creates a standalone cause of action for apportionment of fault to a non-party. Further, because Appellants’ brief includes only conclusory references to "due process considerations of fairness and equity” and sets forth no substantive legal argument or supporting citations to authority (even to the due process clauses themselves), we do not consider Appellants' argument that the trial court erred in finding their due process rights were not violated by the inability to join Mizzell or include him on the verdict form for purposes of allocation. See First Sav. Bank v. McLean, 314 S.C. 361, 363, 444 S.E.2d 513, 514 (1994) (finding an assertion to be abandoned where appellant failed to provide arguments or supporting authority therefor and explaining mere allegations are insufficient to demonstrate trial court error). Nevertheless, we note " 'unfairness in result is no sure measure of unconstitutionality.’ ” Foster v. California, 394 U.S. 440, 448, 89 S.Ct. 1127, 22 L.Ed.2d 402 (1969) (quoting United States v. Augenblick, 393 U.S. 348, 352, 89 S.Ct. 528, 21 L.Ed.2d 537 (1969)).
. Notably, the dissent does not offer any discussion of Rule 19 itself or any explanation of how the analysis under Rule 19 has somehow been *562altered to now encompass a mere joint tortfeasor as a necessary party to a suit.