​ investment contracts are defined under different legal systems (civil, common, hybrid)​

• Investigating how investment contracts are defined under different legal systems (civil, common, hybrid) and how they differ from both commercial contracts and public-law instruments (e.g., concession, production sharing, PPP).
• Analyzing the implications of the contract's legal form for choice of law, enforcement mechanisms, applicable procedural regimes (jurisdiction, arbitration), change of law/stabilization clauses, etc.​