In this worker’s compensation case, we must determine whether the Worker’s Disability Compensation Act requires that benefits be reinstated when an offer of reasonable employment that was unreasonably refused is withdrawn by a plant closing. Because the Court of Appeals failed to give effect to the act’s requirement that benefits be denied during the period of unreasonable refusal and no longer, we would reverse its holding that the plaintiff was not entitled to reinstatement of benefits and would remand to the Court of Appeals to address issues raised on appeal but not addressed in its opinion.
We also would uphold the findings of the Worker’s Compensation Appeal Board that the defendant employer made a bona fide offer of reasonable *379employment and that the plaintiff employee unreasonably refused the offer.
i
George Derr began working for Murphy Motor Freight Lines as a truck driver in October of 1968. His job also entailed moving freight to and from loading docks. In December of 1984, he injured his back on the job while unloading a desk weighing in excess of 250 pounds. Although he finished his shift that day, he was unable to work the following day because the pain was too great. The defendant employer placed him on medical leave, and he began receiving worker’s compensation benefits. Mr. Derr attempted to return to work on January 21, 1985, but was unable to perform his job. He went back on medical leave and began treatment three times a week at an industrial clinic.
By letter dated June 11, 1985, the defendant employer offered Mr. Derr a light-duty job consisting of security and clerical duties on a midnight shift. On June 18, 1985, Mr. Derr refused the offer. He gave several reasons, including that the job was nonunion and on an undesirable shift, and that his prescribed medication made him too drowsy to perform the job safely and to safely travel to and from the job site. He also testified that he did not feel he could physically perform the job. Because he refused the offer, defendant employer terminated Mr. Derr’s worker’s compensation benefits effective June 18, 1985.
Approximately a year before his injury, Mr. Derr purchased a retirement home in northern Michigan and began inquiring about his retirement benefits. He testified that at that point he had only general *380thoughts of retirement. He was aware that the longer he waited, the more his pension benefits would increase. The day after refusing the offer of light-duty work and being informed that his worker’s compensation benefits would cease, Mr. Derr applied for pension benefits. He subsequently began receiving monthly pension benefits. Approximately three months after termination of his compensation benefits, he moved to his retirement home.
On June 28, 1985, Mr. Derr filed a petition for hearing with the Bureau of Worker’s Disability Compensation. The case was heard before a magistrate. On the date set for the closing of proofs, the employer informed plaintiff’s counsel that it had declared bankruptcy and had closed its operations on February 26, 1987.
The magistrate found that plaintiff had suffered a personal injury that arose out of and in the course of his employment, resulting in continuous, ongoing, and total disability. He further found that the employer had made a bona fide offer of favored work and that plaintiff unreasonably refused this offer. Consequently, the magistrate suspended weekly compensation benefits from June 18, 1985, the date that plaintiff refused the job offer. The magistrate also revived weekly compensation payments effective February 26, 1987, because of the effective withdrawal of the offer by defendant’s bankruptcy. The magistrate cited Hartsell v Richmond, Lumber Co, 154 Mich App 523; 398 NW2d 456 (1986), and Steward v Westran Corp, 130 Mich App 68; 343 NW2d 7 (1983), for the proposition that an unreasonable refusal of reasonable employment does not permanently deprive an employee of worker’s compensation benefits, but *381rather suspends the employee’s benefits for the duration of the unreasonable refusal.
The Worker’s Compensation Appeal Board affirmed in all aspects relevant to this appeal. Specifically, the WCAB found that defendant established by a preponderance of the evidence that it made a bona fide offer of reasonable employment and that plaintiff’s reasons for refusing the offer were unreasonable. The WCAB also cited Hartsell in affirming reinstatement of benefits.
The Court of Appeals affirmed the wcab’s findings that defendant made a reasonable offer of employment and that plaintiff unreasonably refused it. However, the Court reversed the reinstatement of benefits. It held that the favored-work doctrine only requires an employer to keep an offer open for a reasonable time under all the circumstances. The Court reasoned that because the offer was open for over IV2 years and plaintiff gave no indication that he was interested in returning to work during this entire time, he was not once again entitled to compensation benefits by reason of the effective withdrawal of the offer due to defendant’s bankruptcy. The Court of Appeals stated:
The favored-work doctrine requires only that an employer keep open an offer for a reasonable time under all the circumstances. Russell v General Motors Corp, 172 Mich App 627; 432 NW2d 738 (1988). After that time, the company should be permitted to withdraw its offer with no fear of disadvantage. Id. In this case, the offer was effectively kept open for over a year and a half. During that time, no indication was given by plaintiff that he might be interested in the job. Thus, even though the company’s bankruptcy effectively meant the offer was withdrawn, plaintiff was not once again entitled to compensation benefits.
*382Plaintiff argues that MCL 418.301(5); MSA 17.237(301)(5) should be interpreted to mean that the employee’s refusal ends when the employer either withdraws its offer or goes out of business. Review of the statute does not persuade us of the validity of this argument. [195 Mich App 333, 335-336; 489 NW2d 183 (1992).]
Plaintiff appealed in this Court, raising the following issues: (1) whether the magistrate, the wcab, and the Court of Appeals erred in determining if the job offered was reasonable employment, and (2) whether his benefits should be reinstated upon the effective withdrawal of the job offer because of defendant’s bankruptcy.
n
Plaintiff argues that the magistrate, the wcab, and the Court of Appeals erred in determining that he unreasonably refused an offer of “favored work” before properly determining whether the offer was for “reasonable employment.” Plaintiff’s argument is actually twofold: (1) that the lower tribunals erroneously applied judicially created “favored work” principles rather than the statutory “reasonable employment” provisions, and (2) that by analyzing the reasonableness of plaintiff’s refusal before determining whether the offer was for reasonable employment, the lower tribunals impermissibly shifted the burden of proof to plaintiff on certain key issues. We find no merit to either of these contentions.
A
Plaintiff points out that throughout their written opinions, the lower tribunals in this matter used the term “favored work” rather than the statutory term “reasonable employment.” This, however, does not *383mean that the lower tribunals employed an incorrect analysis. The Legislature partially codified the judicially created favored-work doctrine in the reasonable-employment provisions of the Worker’s Disability Compensation Act. Pulver v Dundee Cement Co, 445 Mich 68, 74; 515 NW2d 728 (1994). Importantly, the favored-work doctrine and the reasonable-employment provisions call for the same analysis regarding whether an offer is for reasonable employment and whether plaintiff unreasonably refused the offer.
Reasonable employment is defined in the act as
work that is within the employee’s capacity to perform that poses no clear and proximate threat to that employee’s health and safety, and that is within a reasonable distance from that employee’s residence. [MCL 418.301(9); MSA 17.237(301)(9).]
Like the definition of reasonable employment, the doctrine of favored work also focused on whether an employee was physically capable of performing the job. An offer of favored work would be deemed a good-faith, bona fide offer only if it was one that the employee was physically capable of performing. Bower v Whitehall Leather Co, 412 Mich 172, 186; 312 NW2d 640 (1981); Kolenko v United States Rubber Products, Inc, 285 Mich 159, 162; 280 NW 148 (1938).
In concluding that defendant established a bona fide offer of reasonable employment and that plaintiff unreasonably refused it, the magistrate found that “plaintiff has failed to show any medical reason why he could not carry out the favored work job and in fact had never mentioned the offer of favored work to Dr. Gordon [plaintiff’s evaluating physician] to secure *384his opinion on whether he could perform the work or not.” During the trial, medical testimony was presented indicating that the light work offered to Mr. Derr was within his physical limitations.* 1
Similarly, the wcab stated:
We find, as did the Magistrate in this matter, that defendant established, by a preponderance of the evidence, that it made a bona fide offer of favored work to plaintiff. We find that while plaintiff offered explanations as to why he refused to accept the favored work, they were unpersuasive, and we do not find them to be reasonable. . . .
We find, through the testimony presented on the record, that the offer of favored work appeared to be within the restrictions placed on plaintiff. We note plaintiff has offered no testimony that would persuade us that the offered work would be, in any way, outside of plaintiffs restrictions. [Unpublished opinion, mailed December 11, 1990 (Decision No. 1578), p 8.]
Plaintiff argues that the factfinders refer in their written opinions to the suitability of the job when discussing the reasonableness of plaintiffs refusal, rather than when discussing whether the offer was for reasonable employment. This, however, does not constitute error because the suitability of the job is pertinent to both determinations. After reviewing the record and detailed findings of the magistrate and the *385WCAB, we are convinced that the magistrate and the WCAB appropriately considered whether plaintiff was able to perform the job in determining that the offer was for reasonable employment.
Whether a job offer is for reasonable employment and whether refusal of such an offer is reasonable are questions of fact. Pulver, supra at 77. The findings of fact of the wcac2 are conclusive in the absence of fraud and will not be disturbed if supported by competent evidence in the record. Bower v Whitehall Leather Co, supra at 197; MCL 418.861; MSA 17.237(861). Because the proper standard was applied, and the findings are supported by competent evidence in the record, we would affirm them.
B
Regarding plaintiffs argument that the magistrate and the wcab impermissibly shifted the burden of proof on critical issues from defendant to plaintiff, we find it unnecessary to evaluate the relative burdens and to determine whether they were appropriately allocated.3 Again, our review of these factual findings *386is extremely limited in scope. Because the wcab’s findings are supported by competent evidence, they should not be disturbed.
m
The more difficult issue presented in this appeal is whether plaintiff is entitled to reinstatement of benefits by virtue of the employer’s effective withdrawal of its offer when it declared bankruptcy and closed its doors. Although the defendant offers some persuasive arguments against reinstatement of benefits, the language of the reasonable-employment provisions and the legislative intent behind these provisions foreclose a permanent forfeiture of benefits.
A
Section 301(5) (a) of the Worker’s Disability Compensation Act provides:
If disability is established pursuant to subsection (4), entitlement to weekly wage loss benefits shall be determined pursuant to this section and as follows:
(a) If an employee receives a bona fide offer of reasonable employment from the previous employer, another employer, or through the Michigan employment security commission and the employee refuses that employment without good and reasonable cause, the employee shall be considered to have voluntarily removed himself or herself from the work force and is no longer entitled to any wage *387loss benefits under this act during the period of such refusal [MOL 418.301(5); MSA 17.237(301)(5) (emphasis added).]
The clear and unambiguous language generally requires reinstatement once an offer is withdrawn because entitlement to benefits is suspended only “during the period of such refusal.” Once an offer is withdrawn, it can no longer be refused. When the defendant employer declared bankruptcy and shut its doors, its offer of reasonable employment no longer existed. Consequently, there was no offer for the plaintiff to refuse.
Rules of statutory construction require that when the language of a statute is clear and unambiguous it must be enforced as written. Hiltz v Phil’s Quality Market, 417 Mich 335, 343; 337 NW2d 237 (1983). A literal reading of the statute does not permit a permanent forfeiture of benefits.4
*388As noted time and again by this Court, “the wdca is in derogation of the common law, and its terms should be literally construed without judicial enhancement.” Paschke v Retool Industries, 445 Mich 502, 510-511; 519 NW2d 441 (1994); Luyk v Hertel, 242 Mich 445, 447; 219 NW 721 (1928). Where the statutory language is clear, courts should not add or detract from its provisions. Where ambiguity exists, the act should be liberally construed to grant, rather than to deny, benefits. Paschke, supra at 511; Bower, supra at 191.
This guiding principle, deeply rooted in our worker’s compensation law, is especially pertinent here, where a literal reading of the act generally favors reinstatement of benefits and where less literal interpretations result in a permanent forfeiture of benefits. As noted by Justice Brickley in Nederhood v Cadillac Malleable Iron Co, 445 Mich 234, 247; 518 NW2d 390 (1994):
It would seem that a permanent forfeiture of benefits is not in accord with a liberal construction of the Worker’s Disability Compensation Act.
B
Policy reasons underlying the reasonable-employment provisions of the wdca also advise against an automatic and permanent forfeiture of benefits when an employee unreasonably refuses an offer *389that is later withdrawn because of bankruptcy. A primary purpose of the reasonable-employment doctrine is to allow an employer to mitigate its worker’s compensation liability by providing work within the injured employee’s physical capacity. Pulley v Detroit Engineering & Machine Co, 378 Mich 418; 145 NW2d 40 (1966); Bower, supra at 182; Stallworth v Chrysler Corp, 144 Mich App 706, 710; 375 NW2d 797 (1985). The refusing employee’s benefits are cut off during the period of refusal in order to encourage the employee to accept the offer and thus effectuate the employer’s ability to mitigate. The Court of Appeals in Hartsell explained:
The doctrine of favored work is anchored in mitigation principles which allow the employer to reduce its established liability to the employee where the employee unreasonably refuses favored work. However, the employee’s unreasonable actions can no longer be the justification for reducing the employer’s liability once the plant closes, as here, or once an offer of favored work is withdrawn. [Id. at 534.]
We find this rationale persuasive and agree that the purposes underlying the reasonable-employment doctrine would not be served by permanently denying benefits.
It should also be noted that an employer’s mitigation opportunities do not end with cessation of its business operations. The Legislature, in enacting the reasonable-employment provisions, altered the favored-work doctrine in several significant respects. One of these changes was to expand an employer’s mitigation opportunities by including within the ambit of reasonable employment a job from any source:
*390If an employee receives a bona fide offer of reasonable employment from the previous employer, another employer, or through the Michigan employment security commission and the employee refuses that employment without good and reasonable cause, the employee shall be considered to have voluntarily removed himself or herself from the work force and is no longer entitled to any wage loss benefits under this act during the period of such refusal. [MCL 418.301(5)(a); MSA 17.237(301)(5)(a) (emphasis added).]
Consequently, employers axe free to arrange a position within an injured employee’s physical capacity with another employer or through the mesc.
Further, the offered job no longer need be in the employee’s general field of employment, as it did under the favored-work doctrine. As long as it is within the employee’s capacity to perform, without the threat of harm to himself and within a reasonable distance from his residence, it is considered a reasonable offer of employment. MCL 418.301(9); MSA 17.237(301)(9).5
The Legislature’s expansion of an employer’s opportunities for mitigation supports a finding that the Legislature did not intend a permanent forfeiture of benefits once an employer’s offer is effectively withdrawn.
The defendant argues that it has acted in good faith, that the plaintiff has not, and that this Court *391should weigh the reasonableness of the parties’ actions in determining if benefits should be reinstated. While reasonableness and good faith come into play in determining whether there has been a bona fide offer of reasonable employment and whether there was a reasonable refusal, no amount of good or bad faith, by either of the parties, can justify judicial redrafting of the statute.
Nor can this Court engraft onto the statute a requirement that the employee communicate his desire to reenter the work force or otherwise indicate a willingness to return to work once he has unreasonably refused an offer of reasonable employment.6 This *392is simply not required by the statute. Instead, the WDCA requires that the Bureau of Worker’s Disability Compensation and the defendant employer be notified if the plaintiff has refused another bona fide offer of employment. MCL 418.301(8); MSA 17.237(301)(8). There is no evidence in the record indicating either that plaintiff refused job offers from the mesc or that defendant solicited job offers from other employers.
For all the reasons stated above, we conclude that § 301(5) (a) of the WDCA means exactly what it says: Benefits that are suspended because of an employee’s unreasonable refusal of an offer of reasonable employment are suspended only during the period of such refusal. Once an offer is withdrawn and it is no longer available for the employee to accept, benefits must be reinstated as long as the employee is available for work unless and until another reasonable offer is unreasonably refused by the employee.
Here, the offer of reasonable employment was effectively withdrawn when the defendant employer declared bankruptcy and closed its doors on February 26, 1987. Because there is no longer an offer for plaintiff to refuse from this employer and because there is no indication in the record that plaintiff has refused a subsequent offer of reasonable employment from another employer or from the MESC, plaintiff is entitled to reinstatement of benefits, effective February 26, 1987, as long as he remains available for a reasonable-employment position.
*393Because the defendant has offered some evidence that the plaintiff may not be available for work because of his retirement, this case may present a situation different than the temporary removal from the workplace that is addressed by § 301(5). While this section generally requires reinstatement of benefits when an employer withdraws an offer of reasonable employment, if Mr. Derr has permanently retired, and thus his retirement remains the cause of his unavailability for work, then he may not be entitled to reinstatement of benefits. We, therefore, would remand to the Court of Appeals to address issues raised on appeal, but not addressed in its opinion.
IV
In summary, because there is competent evidence on the record for the wcab’s determination that the defendant employer made a bona fide offer of reasonable employment and that the plaintiff employee unreasonably refused this offer, we would affirm that part of the Court of Appeals opinion upholding these factual findings by the wcab.
However, because the wdca provides that when an employee unreasonably refuses an offer, benefits are to be suspended only during the period of such refusal, and because the purposes underlying the reasonable-employment provisions and the WDCA in general indicate a legislative intent to reinstate benefits when an offer of reasonable employment is withdrawn by the employer, we would reverse that portion of the Court of Appeals decision that reversed the wcab’s reinstatement of benefits from the date of defendant employer’s bankruptcy.
Levin and Cavanagh, JJ., concurred with Mallett, J.Plaintiff’s examining physician, Dr. Gordon, placed the following restrictions on plaintiff:
I would suggest that Mr. Derr continue to restrict his activities by avoiding lifting and carrying of weights that would be in excess of 15 pounds on a frequent basis. He should also avoid frequent bending and torque movements as well as prolonged standing and sitting.
The record further indicates that the clerical and security duties required by the light-duty job were within these restrictions.
And formerly, as in this case, the WCAB; Pulver v Dundee Cement Co, supra at 71.
Plaintiff argues that defendant bears the burden of proving whether the offer is for reasonable employment, while plaintiff has the burden of proving whether his refusal was reasonable. The question whether plaintiff could safely drive if drowsy as the result of taking prescribed medication is an issue relevant to determining whether the offer was for reasonable employment because it relates to whether the job poses a clear and proximate threat to his health and safety and whether the job offered was “within a reasonable distance” from his residence. Thus, argues the plaintiff, while defendant should have borne the burden of proof regarding this issue, the lower tribunals considered the issue of drowsiness in determining that plaintiff’s refusal was unreasonable instead of considering it in determining if the offer was reasonable. Consequently, argues plaintiff, the burden of proof regarding this issue was erroneously shifted from defendant to plaintiff.
*386Even if we were to entertain plaintiff’s burden of proof argument, we find it unpersuasive. The issue of drowsiness was relevant both to whether there was a reasonable offer of employment and to whether plaintiff’s refusal was reasonable. It is apparent that the magistrate and the WCAB did not find plaintiff’s claims of drowsiness to be particularly credible. The mere fact that the magistrate and the WCAB discussed this claim in the context of the plaintiff’s refusal, rather than in the context of the offer of employment, does not necessarily mean that the burden of proof was impermissibly shifted.
As is the case with most “plain language” analyses, other interpretations, while perhaps less plausible, can be read into the “clear and unambiguous” statute. Here, it could be argued that the “period of such refusal” extends until the employee indicates that he is no longer refusing reasonable employment and is ready and willing to reenter the work force. Under this inteipretation, if an employee unreasonably refuses an offer and the offer is later effectively withdrawn before the employee indicates a willingness to return to work, the period of refusal continues and the employee is not entitled to reinstatement of benefits.
This reading of the statute has some initial appeal, especially in the context of this case, where the offer is withdrawn because of bankruptcy and the facts, upon further development, may reveal that the plaintiff has no intention of reentering the work force. However, it does not comport with the policy reasons underlying the reasonable-employment doctrine, as discussed in part ni(B).
Another possible interpretation, less plausible than that just discussed, is that an offer of reasonable employment must be kept open only for a reasonable time. If the employee fails to indicate acceptance of the offer within this reasonable time, he permanently forfeits benefits. This interpretation, which was adopted by the Court of Appeals in this case, has no basis in the statute whatsoever, and also does not comport with the *388rationale behind the reasonable-employment doctrine. As noted by Justice Boyle, concurring in part and dissenting in part in Nederhood v Cadillac Malleable Iron Co, 445 Mich 234, 267; 518 NW2d 390 (1994), “[t]he ‘reasonable time’ limitation would present employers with a windfall by turning a judicially created doctrine of mitigation into a judicially created doctrine of benefit elimination.”
Section 301(9) provides:
“Reasonable employment,” as used in this section, means work that is within the employee’s capacity to perform that poses no clear and proximate threat to that employee’s health and safety, and that is within a reasonable distance from that employee’s residence. The employee’s capacity to perform shall not be limited to jobs and work suitable to his or her qualifications and training.
Defendant employer forcefully argues that while it has acted in good faith in extending its offer and in keeping it open for over \lk years, the plaintiff has not acted in good faith. Instead, the day after refusing the offer, plaintiff applied for retirement benefits and subsequently moved to his retirement home in northern Michigan. Mr. Derr, argues defendant, has chosen to retire and has no intention of returning to work. But for the fortuitous withdrawal of its offer because of bankruptcy, Mr. Derr would never have reapplied for benefits.
While defendant’s argument is compelling, it must be remembered that in many cases, worker’s compensation benefits may be subject to coordination with retirement pension payments under the act. MCL 418.354; MSA 17.237(354). Further, as noted earlier, the employer has other opportunities for mitigation.
It must also be remembered that retirement from one employer does not necessarily imply an intention on the part of an individual to permanently withdraw from gainful employment. Many individuals, upon becoming vested under a retirement plan, choose to retire and begin receiving their earned benefits while at the same time obtaining another job.
Finally, given that defendant suspended his compensation benefits, Mr. Derr’s application for his pension may have been motivated by economic necessity, rather than a desire to permanently retire. The economic necessity of a claimant securing a means of support pending resolution of a disability claim was noted by this Court in Paschke, supra at 517, and in Bower, supra at 193.
[I]t is important to recognize that if the employer does not pay compensation voluntarily, the employee may be without any means of support until an award of benefits is made by the referee at the hearing, [id.]
*392We do recognize, however, that if Mr. Derr has permanently removed himself from the job market, he may no longer be available for a reasonable-employment position. Consequently, he may not be entitled to full reinstatement of benefits.