"The essence of the doctrine of merger is that the cause of action merges in the judgment. The cause of action is thereby extinguished by a combination of the judicial determination of the facts forming the cause of action and manifestation of that determination in the order, or judgment, of the court that follows. Even accepting that a declaration does not have any executory or coercive effect, a declaration that is based upon findings of fact that relate to a recognisable cause of action, still determines the issue and it is hard to see why it should not have the effect of extinguishing the cause of action. It is after all a matter for the claimant to decide whether additional relief may be needed. A determination and grant of declaratory relief followed by a second stage when the court is asked to consider additional claims for relief is clearly unobjectionable if it is made within the same claim based on prayers for relief sought in the claim form."
"In my judgment this case illustrates that a declaration can be a remedy for a cause of action and since it can be, there is no reason why the doctrine of merger could not apply when it is the sole remedy granted. A declaration is a remedy which the claimant can "recover" (to use the word stressed by the appellant) based on a cause of action. In that sense I agree with the Chief Master."
"26. However what this shows is that one needs to examine both the judgment and the legal right said to have merged into it before the answer in a particular case can be given. I do not see how a declaration which declares to exist the right which the claimant already had before judgment was given, could be said to extinguish that pre-existing right. It does the opposite. This may well be what the authors of the Spencer Bower and Handley textbook had in mind. Now it may be that on procedural grounds a second court might refuse to entertain a second action of some kind which is based on that right, but that would not be as a result of merger, that would be based on the fulfilment of the policy in favour of finality and against abusive proceedings. 27. The appellant's counsel emphasised that merger is a technical and automatic doctrine. I agree that that is relevant to understanding its scope. Merger is a way of explaining how one legal right can have disappeared after a judgment has been given and therefore it has a narrower focus than the wider concepts based on the prevention of abuse and on finality. 28. What happened in the proceedings below is the Chief Master rejected the argument that declarations as such could not support merger because in fact they could be relief for a cause of action. As I have said I believe he was correct to do that. Before the Chief Master the way the arguments had been advanced meant that that was enough to dispose of the issue. However in my judgment it is not. Characterising a declaration as relief or as a remedy is not enough to answer the question in a given case. The question will be whether the earlier right in particular has merged into and been extinguished by the actual declaration given in the judgment, having regard to the terms in which that declaration is couched. 29. One only has to ask that question in this case to see that the answer is that these declarations do not purport to do that. They are, if anything, a formal statement explaining why Zavarco did have and still does have a right to€36 million cash from Mr Nasir. 30. In my judgment the doctrine of merger applied to the declarations made in the previous action in 2017 does not operate to extinguish the claimant's right against Mr Nasir under the Articles to be paid€36 million . It is that right, recognised by the judgment, which this present action is based on."
"Res judicata is a portmanteau term which is used to describe a number of different legal principles with different juridical origins. As with other such expressions, the label tends to distract attention from the contents of the bottle. The first principle is that once a cause of action has been held to exist or not to exist, that outcome may not be challenged by either party in subsequent proceedings. This is "cause of action estoppel"
"3. Common law doctrines preclude a person who has obtained a decision from one court or tribunal from bringing a claim before another court or tribunal for the same complaint. These rules are referred to as res judicata and merger. The parties have argued this case on the basis of both principles. The judge dealt solely with merger. 4. To understand merger, it is necessary to understand the meaning of "a cause of action"
"A plea of former recovery is distinguishable from one of res judicata estoppel. The latter prohibits contradiction, the former reassertion. In cases of estoppel what must not be controverted is a proposition of law or finding of fact. In cases of former recovery what is not allowed is a second proceeding for the same relief ."
"If there be a breach of contract, or wrong done, or any other cause of action by one against another, and judgment be recovered in a court of record, the judgment is a bar to the original cause of action, because it is thereby reduced to a certainty, and the object of the suit attained, so far as it can be at that stage; and it would be useless and vexatious to subject the defendant to another suit for the purpose of obtaining the same result. Hence the legal maxim, "transit in rem judicatam", - the cause of action is changed into matter of record, which is of higher nature, and the inferior remedy is merged in the higher."
"The doctrine of law regarding merger is perfectly intelligible. Where a security of one kind or nature has been superseded by a security of a higher kind or nature, it is reasonable to insist that the party seeking redress should rest upon the latter, and not fall back on the former. In like manner, when that which was originally only a right of action has been advanced into a judgment of a Court of Record, the judgment is a bar to an action brought on the original cause of action. The reasons for this result are given by Baron Parke in King v. Hoare ."
"The defence of 'judgment recovered', arising as it does out of res judicata, has much in common with estoppel by record, although it is not founded upon it. A claimant who has once sued a defendant to judgment cannot, while the judgment stands, though unsatisfied, sue him again for the same cause, not because he is estopped from doing so (although he, as well as the defendant, is estopped from averring anything contrary to the record), but because the cause of action is merged in the judgment, which creates an obligation of a higher nature."