In Wood v The Detroit Edison Co, 409 Mich 279, 288; 294 NW2d 571 (1980), a majority of this Court agreed that evidence of a plaintiff surviving spouse’s remarriage was not to be used to determine damages in a wrongful death action.1 We now must consider whether error occurred in this case when an expert witness, who offered his opinion as to the amount of damages suffered by the surviving spouse, was asked whether he was assuming that the surviving spouse would not remarry.
I
Plaintiff’s decedent died in an automobile accident. Liability was admitted; the parties tried the issue of damages. A jury returned a verdict for the plaintiff in the amount of $30,000. The Court of *706Appeals reversed that judgment and remanded the case for a new trial.2
II
To establish the amount of his damages, the plaintiff called to the stand a witness who expressed the opinion that the plaintiff had been damaged by as much as $528,000. On cross-examination, the defendants undertook a detailed and comprehensive examination of the assumptions which underlay this opinion. A portion of this examination is recounted here:
"Q. One of your assumptions, I assume, is that Mrs. Schaible would continue to want to work during all of those years as opposed to being a housewife and mother?
"A Yes, for the years after she would be age 42.
"Q. And, of course, if for one reason or another she decided she didn’t want to work that would affect your calculations, would it not?
"A. That’s correct.
”Q. One of your assumptions was that she would, if she continued working, that she would turn over all of her earnings, over and above the cost of her own maintenance, to her husband or at least he would receive the economic benefit of it?
"A. Based on the information I have this is what’s been happening in the family.
”Q. That is one of your assumptions?
"A. That’s correct.
”Q. It is one of your assumptions that would continue throughout her working life?
"A. Yes.
"Q. Even after they got in their forties and fifties, your assumption was that would still continue?_
*707"A. That’s correct.
”Q. She wouldn’t keep any of her own earnings for herself or whatever purpose, they would all go other than the 30 percent that you subtracted for the cost of her maintenance, one of your assumptions was that all of it would go to Mr. Schaible or at least he would receive the economic benefit of that?
"A. I assumed beyond the 30 percent, right.
"Q. One of your assumptions, I assume, was that the marriage would continue during that period?
"A. Yes. All the indications I had it was a happy marriage.
”Q. But that was one of your assumptions?
"A. Based on the information I have.
”Q. And one of your assumptions, I assume, also, was that Mr. Schaible would not remarry and everything would remain the same up to his own death?
"A. Yes.
”Q. Another one of your assumptions was that Mrs. Schaible would continue in good health and be able to work?
"A. That’s correct.
”Q. Will you agree, Mr. Tansky, there is really no way you can say for sure any of the assumptions you made and upon which your opinions were based are valid with reference to this particular individual other than your opinion?
'A. Could you restate that question?
"Q. Okay, I can try, anyway. Would you agree there’s really no way you can say, talking about you, now, for sure, that any or all of the assumptions that you have made and upon which your opinions are based, are valid, or would turn out to be valid with reference to this particular individual?
"A. In my opinion?
"Q. No, I’m not asking for your opinion, I’m asking whether there’s any way you can say they will be valid.
'A. No, things might have been better or worse economically.
"Q. So, what„we are saying, again, you don’t have a crystal ball, you don’t know what is going to happen in *708the future or what would happen with reference to anyone specific individual?
"A. That’s correct.” (Emphasis supplied.)
The defendants had earlier received permission from the trial court to ask the emphasized question. That question and its answer were discussed by defendants during closing argument.
The Court of Appeals described the question and answer as an "erroneous suggestion that the possibility of remarriage could be considered to mitigate damages”. The Court reversed, stating:
"Although the defendants’ cross-examination and argument did not explicitly state that the possibility of remarriage should be considered to mitigate damages, the facts actually elicited serve no purpose other than to infer [sic] that the expert’s estimate of economic loss was not accurate because it did not reflect a possibility that the plaintiff would remarry.”
Ill
We conclude that the Court of Appeals erred. The jury was not told to take into account the possibility that the plaintiff might remarry. Rather it listened to an exposition of the many assumptions upon which the expert witness relied in making his calculations of the plaintiffs economic loss. Such an exposition is necessary to an intelligent understanding and evaluation of the worth of the expert’s opinion.
Unlike the situation in Wood,3 this expert’s assumption concerning remarriage was of interest to *709the defendants solely because of its effect on the expert’s opinion as to the amount of economic damages. It was proper for defendant to examine fully the assumptions which underlay the expert’s opinion. By calling into question the worth of an expert’s many assumptions, defense counsel can seek to show that what appears to be the opinion of an expert is no more than conjecture which the jury can then be urged to ignore.
It remains improper to introduce evidence of the possibility of remarriage to prove that there has been no loss of consortium. It is proper, though, to impeach an expert witness by reviewing the assumptions which underlie the expert’s opinion and by arguing that the expert’s opinion is mere conjecture based upon erroneous assumptions.
In lieu of granting leave to appeal, we reverse the judgment of the Court of Appeals and reinstate the judgment of the trial court. GCR 1963, 853.2(4).
Costs to defendants.
Coleman, C.J., and Williams, Fitzgerald, and Ryan, JJ., concurred.See also Bunda v Hardwick, 376 Mich 640; 138 NW2d 305 (1965).
Schaible v Myers, unpublished per curiam opinion of the Court of Appeals of January 10, 1980, Docket No. 78-323.
In Wood the plaintiff had remarried prior to trial. The trial court permitted testimony concerning the remarriage on the ground that if loss of society and companionship were claimed as damages, all facts pertaining to such loss, including remarriage, should be considered. Wood, 409 Mich 284.