Comparative Contract Law: Formation, Performance, and Remedies

Introduction

Contract law lies at the heart of private law ordering across all legal systems, yet its doctrinal architecture varies considerably. This article examines contract formation, performance obligations, and remedies across the United States, United Kingdom, Germany, France, Russia, China, and the European Union, focusing on the theoretical and structural divergences that characterise each tradition. The 2016 French reform, the 2020 Chinese Civil Code, and the European harmonisation projects — DCFR, CESL, and consumer directives — provide important contemporary reference points.

Formation of Contract

Offer and Acceptance

The common law of contract, represented by the US and UK, requires a meeting of minds (consensus ad idem) expressed through offer and acceptance. The mirror-image rule requires acceptance to correspond exactly to the offer; any deviation constitutes a counter-offer. The US Uniform Commercial Code (UCC) Art 2-207 liberalises this rule for sale of goods, permitting additional terms in acceptance to become part of the contract unless expressly excluded. The mailbox rule (acceptance effective on dispatch) applies in both systems, though it has been qualified for instantaneous communication.

German law, under the Bürgerliches Gesetzbuch (BGB) §§ 145–157, treats offer and acceptance within a systematically refined framework. The BGB distinguishes between receipt-based (Zugangsprinzip, § 130) and dispatch-based efficacy. A binding offer cannot be revoked during its fixed or reasonable period (§ 145). The German system’s abstract character extends to the doctrine of abstraction (Abstraktionsprinzip), which separates the obligational contract (Verpflichtungsgeschäft) from the real agreement transferring title (Verfügungsgeschäft) — a conceptual refinement unique among Western systems.

French contract law, reformed by the Ordonnance n° 2016-131 of 10 February 2016 (effective October 2016), modernised the 1804 Code civil provisions. The reformed Code recognises offer and acceptance (Art 1113–1127-4) with a general obligation of good faith in formation (Art 1112). The reform replaced the traditional requirement of cause (lawful purpose) with a requirement of a lawful and certain content (Art 1128) and introduced provisions on pre-contractual disclosure (obligation d’information, Art 1112-1).

Russian contract law, codified in the Civil Code of the Russian Federation (Part I, 1994, Ch 9, 27–29), follows the civil law tradition. Contracts are formed by offer and acceptance, with the offer being a sufficiently definite proposal indicating intent to be bound (Art 435). Acceptance must be complete and unconditional (Art 438). Russian law recognises public offers (publichnaya oferta) in certain contexts, including retail sales.

China’s Civil Code (2020), Book III (Art 463–788), integrated the former Contract Law (1999) and General Principles of Civil Law. Formation follows offer (Art 472: a definite proposal indicating intent to be bound) and acceptance (Art 479: an expression of assent). The Code explicitly recognises electronic data messages as a valid form of communication (Art 469).

The EU’s Draft Common Frame of Reference (DCFR), a scholarly but non-binding text, offers a comprehensive model for European contract law. The proposed Common European Sales Law (CESL, withdrawn in 2014) would have provided an optional instrument for cross-border transactions. EU consumer directives — Unfair Contract Terms Directive 93/13 and Consumer Rights Directive 2011/83 — impose mandatory information duties and withdrawal rights that increasingly shape contract formation across member states.

Consideration vs Causa vs Consensualism

The most fundamental doctrinal divergence is the requirement of consideration in common law versus the consensualist tradition of civil law. In the US and UK, a promise is enforceable only if supported by consideration — a bargained-for exchange of value. The Restatement (Second) of Contracts § 71 defines consideration as performance or return promise bargained for. This distinguishes contract from gift and limits enforceability of modifications without fresh consideration (though US UCC Art 2-209 and UK Williams v Roffey Bros (1991) have relaxed this rule).

Civil law systems generally reject consideration. France abolished cause as a separate requirement in the 2016 reform; the focus is on consent, capacity, and content (Art 1128). Germany enforces any serious declaration of intent (Willenserklärung), provided it is not vitiated by error, fraud, or duress. Russia requires only a meeting of minds (Art 432). China’s Civil Code does not require consideration.

The promissory estoppel doctrine (High Trees (1947) in the UK; Restatement § 90 in the US) mitigates consideration’s rigidity by enforcing promises on which the promisee has foreseeably relied. This equitable doctrine functions as a civil law-style good-faith corrective.

Performance and Good Faith

The good faith obligation (Treu und Glauben, bonne foi, dobrosovestnost, chengxin yuanze) is a mandatory term in civil law systems. Germany’s BGB § 242 requires performance according to good faith, having regard to commercial usage. The FCC’s famous Bürgschaft decision extended this to substantive fairness review of standard form contracts.

France’s Art 1104 CC (2016 reform) elevated good faith to a general principle applying to formation, performance, and enforcement. The pre-reform law treated good faith primarily in performance; the reform expanded its scope significantly.

Russia’s Civil Code Art 1(3) establishes good faith as a fundamental principle, and Art 10 prohibits abuse of right (zlocupotreblenie pravom). The Plenum of the Supreme Court has emphasised good faith in contractual interpretation.

China’s Civil Code Art 7 codifies the principle of good faith (chengxin yuanze) as one of its “basic principles,” influencing formation, performance, and post-contractual duties.

Common law systems traditionally resist a general duty of good faith in contract performance. The US UCC § 1-304 imposes good faith in the performance of UCC-governed contracts, but the Restatement (Second) is equivocal. Some US states (New York, Delaware) reject a general duty. The UK similarly rejects a freestanding duty, though specific doctrines — Mareva injunctions, fiduciary duties, and the Hilton v Barker Booth & Eastwood (2005) duty of disclosure in certain contexts — perform functional equivalents.

The DCFR (III.–1:103) imposes a general duty of good faith and fair dealing. The CESL proposal similarly required good faith throughout the contractual relationship.

Remedies for Breach

Damages

All systems recognise expectation damages as the primary remedy: the promisee is placed in the position they would have occupied had the contract been performed. Germany’s BGB § 280–283 provides for damages for breach, with the foreseeability limitation of BGB § 249 (natural restitution) differing from the common law’s limitation to foreseeable losses. France (Art 1231-3 CC) limits damages to foreseeable losses at contract formation. Russia (Art 393–395) compensates actual damage and lost profit, with foreseeability limits following the civil law pattern. China (Art 584) adopts foreseeability as the limit of consequential loss.

Punitive damages are generally unavailable in contract — a marked contrast between the US (where punitive damages in contract are rare but theoretically possible in bad-faith breach cases) and other jurisdictions where contract damages are strictly compensatory. The UK, Germany, France, Russia, China, and EU systems all reject punitive contractual damages.

Specific Performance

Specific performance — an order requiring the breaching party to perform as promised — is the primary remedy in civil law and an exceptional remedy in common law. Germany (BGB § 241, enforced via § 883 ZPO) treats specific performance as the default; the creditor can demand performance. France (Art 1221 CC) requires enforcement unless performance is impossible or disproportionate. Russia (Art 396) allows the creditor to demand performance. China (Art 577, 580) similarly treats specific performance as available subject to limitations of impossibility, disproportionate cost, or personal service.

In the US and UK, specific performance is equitable and discretionary, available only when damages are inadequate (unique goods, land, or subject matter). The common law’s preference for damages reflects the efficiency norm that expectation damages permit efficient breach.

Termination (Avoidance, Rescission)

Germany distinguishes between withdrawal (Rücktritt, BGB § 323–326) for failure of performance and termination (Kündigung) for continuing obligations. Withdrawal is available if the debtor fails to perform after a reasonable grace period.

France (Art 1224–1230 CC) reformulated termination. The creditor may terminate extra-judicially by formal notice (mise en demeure) after unsuccessful grace period, or judicially. Automatic termination under a contractual cancellation clause is valid (clause résolutoire, Art 1225 CC).

Russia (Art 450–453) permits termination by agreement, court order (for material breach), or unilateral withdrawal where expressly provided by law or contract.

China (Art 562–566) recognises termination by agreement, by operation of law, or by court order for fundamental breach (Art 563). The right to terminate is limited if the breach is minor (Art 563(4)).

US (UCC Art 2-703–2-711) and UK (Sale of Goods Act 1979, ss 12–15) distinguish conditions (terminable) from warranties (damages only). The UK added intermediate terms via Hongkong Fir Shipping (1962). The DCFR uses the concept of fundamental non-performance (III.–3:502), which precludes termination if the non-performance is minor.

Pre-contractual Liability

German law’s culpa in contrahendo — a duty of care in negotiations (BGB § 311(2), § 241(2), developed by Rudolf von Jhering in 1861 and codified in the 2002 reform) — imposes liability for failed negotiations where one party creates justified reliance. France recognises pre-contractual liability for abuse of negotiations (rupture abusive des négociations, Art 1112 CC) and for non-disclosure (Art 1112-1). China (Art 500) imposes liability for negotiating in bad faith, concealing material facts, or disclosing trade secrets. Russia adopted precontractual liability in Art 434.1 (2015) for negotiations conducted in bad faith.

US and UK common law reject a general duty to negotiate in good faith. Liability for failed negotiations arises only through misrepresentation, unilateral mistake, or the emerging doctrine of pre-contractual reliance. The contrast between civil law’s proactive good-faith duties and common law’s arm’s-length model is one of the deepest and most resistant to convergence.

Harmonization

International instruments have driven significant convergence. The UN Convention on Contracts for the International Sale of Goods (CISG, 1980) governs international sales contracts, superseding domestic rules for transactions between parties in contracting states. The CISG adopts civil law characteristics (no consideration requirement, good faith as interpretive principle) while incorporating common law flexibility. It has been ratified by over 90 countries, including all major trading nations except the UK.

The UNIDROIT Principles of International Commercial Contracts (2016) provide model rules that synthesize civil and common law approaches, designed for use in international arbitration and as a reference for legislative reform. The Principles adopt a consent-based approach to formation, impose a general duty of good faith, recognize hardship as a basis for modifying or terminating contracts, and prioritize specific performance while granting courts discretion to refuse it where unreasonable.

Conclusion

Contract law across the seven jurisdictions reveals a spectrum from formal (common law’s consideration, contractual certainty) to substantive (civil law’s good faith, pre-contractual duties). The common law’s emphasis on bargained exchange and limited good faith facilitates transactional certainty but risks substantive unfairness. Civil law systems, through doctrines of good faith, culpa in contrahendo, and broad specific performance, prioritise substantive justice at the cost of some transactional predictability. European harmonisation projects, while currently stalled, represent a sustained effort to synthesise these traditions. The 2016 French reform and the 2020 Chinese Civil Code demonstrate that contract law evolution continues, with convergence on many specific issues coexisting with persistent methodological divergence.