Law of obligations

Branch of private law

The law of obligations is one branch of private law under the civil law legal system and so-called "mixed" legal systems. It is the body of rules that organizes and regulates the rights and duties arising between individuals. The specific rights and duties are referred to as obligations, and this area of law deals with their creation, effects and extinction.

An obligation is a legal bond (vinculum iuris) by which one or more parties (obligants) are bound to act or refrain from acting. An obligation thus imposes on the obligor a duty to perform, and simultaneously creates a corresponding right to demand performance by the obligee to whom performance is to be tendered.

## History

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The word originally derives from the Latin "obligare" which comes from the root "lig" which suggests being bound, as one is to God for instance in "re-ligio".[1] This term first appears in Plautus' play Truculentus at line 214.

Obligations did not originally form part of Roman Law, which mostly concerned issues of succession, property, and family relationships. It developed as a solution to a gap in the system, when one party committed a wrong against another party. These situations were originally governed by a basic customary law of revenge.[2] This undesirable situation eventually evolved into a system of liability in which people were initially encouraged and later essentially compelled to accept monetary compensation from the wrongdoer or their family instead of seeking vengeance. This marked an important shift in the law from vengeance toward compensation. The state supported this effort by standardizing amounts for certain wrongs. Thus the earliest form of Obligation law derives out of what we would today call Delict.[3]

However, liability in this form did not yet include the idea that the debtor "owed" monetary compensation to the creditor, it was merely a means of avoiding punishment. If the debtor or his family didn't have the means to pay then the old rules still applied as outlined in the Twelve Tables, specifically Table III.[4] This section, despite how harsh it may appear to us, was originally developed as a means to protect debtors from the excessive abuses of creditors.[5]

## Definition

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Justinian first defines an obligation (obligatio)[6] in his Institutes, Book 3, section 13 as "a legal bond, with which we are bound by necessity of performing some act according to the laws of our State."[7] He further separates the law of obligations into contracts, delicts, quasi-contracts, and quasi-delicts.

Nowadays, obligation, as applied under civilian law, means a legal tie (vinculum iuris) by which one or more parties (obligants) are bound to perform or refrain from performing specified conduct (prestation).[8] Thus an obligation encompasses both sides of the equation, both the obligor's duty to render prestation and the obligee's right to receive prestation. It differs from the common-law concept of obligation which only encompasses the duty aspect.

Every obligation has four essential requisites otherwise known as the elements of obligation. They are:

1. the obligor: obligant duty-bound to fulfill the obligation; he who has a duty.
2. the obligee: obligant entitled to demand the fulfillment of the obligation; he who has a right.
3. the subject matter, the prestation: the performance to be tendered.
4. a legal bond, the vinculum juris: the cause that binds or connects the obligants to the prestation.

## Classification in Roman Law

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### Sources

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Obligations arising out of the will of the parties are called voluntary, and those imposed by operation of law are called involuntary. Sometimes these are called conventional and obediential. The events giving rise to obligations may be further distinguished into specified categories.

* voluntary:
* unilateral promise (pollicitatio) - undertaking by promisor only to perform, not requiring the promisee's agreement
* contract
* quasi-contract
* negotiorum gestio \- duty to repay an intervenor (gestor) who has managed the affairs or property of another (dominus negotii) who was unable to so
* solutio indebiti \- undue payment or delivery of a thing to another (accipiens), who is then obligated to return the thing to the payer (solvens)
* involuntary:
* delicts and quasi-delicts (equivalent to the common-law tort).
* unjust enrichment (condictio indebiti)

One of the first known classifications was made by Gaius in his Institutes, who divided obligations into obligations ex contractu (obligations arising from agreements) and obligations ex delicto (obligations arising from civil wrongs and crimes). However, since this dichotomy was too simplistic, in his later work Res cottidianae Gaius classified all obligations into the aforementioned obligations ex contractu, obligations ex delicto, and obligations ex variis causarum figuris, which was a heterogeneous category that was supposed to include all the cases of obligations not arising from torts or contracts.

The most precise Roman classification of obligations was featured in Justinian's Institutes (not to be confused by Gaius' Institutes), which classified them as obligations arising from contracts (ex contractu), those arising from torts (ex maleficio), those arising from quasi-contracts (quasi ex contractu), and those arising from quasi-delicts (quasi ex maleficio).[9]

#### Contracts

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See also: Contract

A contract can be broadly defined as an agreement that is enforceable at law. Gaius classified contracts into four categories which are: contracts consensu, verbal contracts, contracts re, and contracts litteris. But this classification cannot cover all the contracts, such as pacts and innominate contracts; thus, it is no longer used. According to many modern legal scholars, the most important classification of contracts is that of contracts consensu, which only require the consent of wills to create obligations, and formal contracts, which have to be concluded in a specific form in order to be valid (for example, in many European countries a contract regulating the purchase of real estate must be concluded in a special written form that is validated by a public notary).[10]

#### Delicts

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See also: Obligatio ex delicto

#### Quasi-contracts

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Quasi-contracts are supposed to be sources of obligations very similar to contracts, but the main difference is that they are not created by an agreement of wills. The main cases are negotiorum gestio (conducting of another person's affairs without their authorization), unjust enrichment, and solutio indebiti.[11] This Roman classification is quite controversial for today's standards, since many of these cases would be considered as completely different from contracts (most notably unjust enrichment), and would instead be classified as delicts or special sources of obligations. They are formed by implication from circumstances regardless of the assent or dissent of parties. They are called quasi-contracts. The following are the examples of quasi-contractual obligations under the Roman law;

#### Quasi-delicts

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See also: Obligatio ex delicto § Obligationes quasi ex delicto

The designation comprised a group of actions that are very similar to delicts, but lacking one of key elements of delicts. It includes res suspensae, responsibility for things poured or thrown out of buildings, responsibility of shippers/innkeepers/stablekeepers, and erring judges. For example, the responsibility of innkeepers creates obligations when certain things left by guests in the lodging are destroyed, damaged or lost by the innkeeper's assistants or employees. In this case, the innkeeper is responsible for the damages to the guest's property, even though he did not cause them personally.[12]

### Subject matter

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Obligations are classified according to the nature of the performance (prestation):

* real obligation - related somehow to immovable property[13]
* obligation to give - obligations to give or possession, or enjoyment[14]
* specific obligation - delivery of a determinate thing when it is particularly designated or physically separated from all others of the same class[15]
* generic obligation - delivery of a generic thing[15]
* personal obligations - undertakings either to do or not do all kinds of work or service
* positive personal obligation - undertaking or obligation to do
* negative personal obligation - forbearance or obligation to not do

## See also

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* Right
* Solidary obligations
* Swiss Code of Obligations

## References

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### Citations

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1. ^ Zimmermann 1996, p. 1.
2. ^ see for example: Exodus 21.23-25
3. ^ Zimmermann 1996, pp. 2–3.
4. ^ XII tables, specifically Table III "Debt"
5. ^ Zimmermann 1996, p. 3.
6. ^ Albanese, Bernardo. "Papimano e la definizione di obligatio in J, 3, 13, pr." (1984) 50 SDHI 166 sqq.
7. ^ Justinian. "Institute." Trans. John B. Moyle. (Oxford: Oxford University Press. 1889) at 132
8. ^ J.-L. Baudouin, P.-G. Jobin, & N. Vézina, Les Obligations, 6th edn. (Cowansville: Yvon Blais, 2005), 19.
9. ^ Bujuklić, Žika (2015). Rimsko privatno pravo. Pravni fakultet Univerziteta u Beogradu. pp. 350–351\. ISBN 978-86-7630-579-7.
10. ^ Perović, Slobodan (1980). Obligaciono pravo. Privredna štampa.
11. ^ Bujuklić, Žika (2015). Rimsko privatno pravo. Pravni fakultet Univerziteta u Beogradu. p. 425\. ISBN 978-86-7630-579-7.
12. ^ Bujuklić, Žika (2015). Rimsko privatno pravo. Pravni fakultet Univerziteta u Beogradu. pp. 430–432\. ISBN 978-86-7630-579-7.
13. ^ "Legal definition of Real obligation". legal-glossary.org. 9 March 2014. Archived from the original on March 9, 2014. Retrieved 2014-03-09.
14. ^ "Gifts and Nations: The Obligation to Give, Receive [sic], and Repay".
15. ^ a b "Laws on Obligation and Contracts - Contract Law Essays". 30 May 2020.

### Sources

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* Zimmermann, Reinhard (1996). The Law of Obligations: Roman Foundations of the Civilian Tradition. Oxford University Press. doi:10.1093/acprof:oso/9780198764267.001.0001. ISBN 9780198764267.

### Further reading

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* Stefano Bertea. A theory of legal obligation. Cambridge: Cambridge University Press, 2019.
* Siel Demeyere. Real obligations at the edge of contract and property. Cambridge: Intersentia, 2020.
* Martin Hogg. Obligations. Edinburgh: Avizandum, 2003.
* Martin Hogg. Obligations: law and language. Cambridge: Cambridge University Press, 2017.
* Alain A. Levasseur et al. Louisiana law of obligations: a methodological and comparative perspective; cases, texts and materials, 2nd edn. Durham, NC: Carolina Academic Press, 2023.
* Dário Moura Vicente. Comparative law of obligations. Cheltenham, UK: Edward Elgar, 2023.
* Daniel P. Visseur, ed. The limits of the law of obligations. Kenwyn, SA: Juta, 1997.
* Reinhard Zimmermann. The new German law of obligations: historical and comparative perspectives. Oxford: Oxford University Press, 2006.

English law

* Andrew Burrows, ed. Principles of the English law of obligations. Oxford: Oxford University Press, 2015.
* Geoffrey Samuel. Law of obligations and legal remedies, 2nd edn. London/Sydney: Cavendish, 2001.
* Geoffrey Samuel. Law of obligations. Cheltenham, UK: Edward Elgar, 2010.

Philippines law

* Hector de Leon & Hector de Leon, Jr. Law on obligations and contracts, 12th edn. Manila: REX Book Store, 2021.
* Andrix D. Domingo. Obligations and contracts: Laws, principles, and jurisprudence, 4th edn. Benguet: Coaching for Results, 2020.
* Elmer T. Rabuya. Obligations and contracts. Manila: REX Book Store, 2019.

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