The use of the UNIDROIT principles to interpret and supplement domestic contract law: a model for the peruvian legislator

Abstract

In 2024, the Peruvian Civil Code turns 40 years since its promulgation in 1984, while the UNIDROIT Principles has its 30th anniversary since their first  edition in 1994. Given this, which party should we attend? This essay proposes a look at the Peruvian Civil Code from the perspective of international trade to propose improvements. To this end, the provisions of the UNIDROIT Principles that regulate contractual interpretation, obligations of best efforts and results, penalty clause and force majeure, are taken as reference. These will be compared with the provisions of the Peruvian Civil Code, to identify possible areas of improvement in domestic law, taking the UNIDROIT Principles as a guide.