اية لويفي2025-12-082025-12-082025https://repository.univ-msila.dz/handle/123456789/47886Illegal speculation in Algeria is a pressing economic and legal issue that directly affects market stability, consumer prices and public trust in fair trade practices. In recent years Algerian authorities have intensified efforts to combat speculative practices by introducing stricter legal measures and increasing market surveillance. Which prompted the release of Law No. 21-15, which targets all forms of unlawful speculation and market manipulation. This research aims to shed light on the legal framework in place to combat such practices, and evaluate its effectiveness in deterring offenders. And through these measures Algeria aims to restore market integrity and protect the purchasing power of its citizens.otherIllegal speculationLegal frameworkMarket manipulationMeasuresPurchasing power.Thesis