Unless otherwise agreed by the parties, a claim for payment in a certain currency entitles the creditor only to the contractually specified amount of that currency (nominal value), irrespective of any fluctuations of the currency in which the debt is expressed between the date of concluding the contract out of which the claim arises and the date of payment.
Doctrine
Fouchard, Philippe, L'Arbitrage Commercial International, Paris 1965
Eckstein, Felix, Geldschuld und Geldwert im materiellen und internationalen Privatrecht (1932), p. 124 et seq.Nussbaum, Arthur, Vertraglicher Schutz gegen Schwankungen des Geldwertes - Goldklauseln und andere Abreden zur Minderung des Valutarisikos, 1928Proctor, Charles, Mann on the Legal Aspect of Money, Oxford 2005.The Nominalistic Principle - A Legal Approach to Inflation, Deflation, Devaluation and Revaluation (1971), p 37 et seq.van Houtte, Hans, Changed Circumstances and Pacta Sunt Servanda, in: Gaillard (ed.), Transnational Rules in International Commercial Arbitration (ICC Publ. Nr. 480,4), Paris 1993, at 105 et seq.Court Decisions
BAG NJW 1973, 959 et seq.OLG München ZUM-RD 2018, 208 et seq.Arbitral Awards
Hamburger Freundschaftliche Arbitrage, Award of May 2, 1977, YCA 1979, at 202 et seq.ICC Award No. 505, World Trade, October 1932, at 11.ICC Award No. 513, World Trade, October 1932, at 10 et seq.ICC Award No. 519, World Trade, December 1932, at 11.ICC Award No. 534, World Trade, February 1933, at 10 et seq.ICC Award No. 536, World Trade, May 1933, at 11.ICC Award No.1704, Clunet 1978, at 976 et seq.National Legislation
Nieuw Burgerlijk Wetboek - New Netherlands Civil Code ( Dutch Civil Code )Philippines Republic Act 386 (Civil Code)