A systematic literature review identified nine main components that define the generational contract: • Explicit or implicit: Whether the contract is open and coded in legislation (formal) or less open and based on common practices (informal). • Parties: The actors involved in the contract. Formal contracts involve the state and broad generational groups, while informal contracts involve specific family lineage members. • Responsibilities: The duties allocated to different generations. For formal contracts, this includes paying taxes and contributions. For informal contracts, it includes having children, working, and caring for the young and old. • What is distributed: The material and social goods exchanged. Formal contracts distribute pensions, social security, and care. Informal contracts distribute sustenance, care, housing, and money. • Time: The contract is future-oriented and connects past, present, and future generations. • Implementation: How the contract is put into practice. Formal contracts are implemented through the welfare state, social policy, and pension systems. Informal contracts are implemented through inheritance, cohabitation, and care. • Value base: Formal contracts rely on trust, solidarity, collectivism, fairness, and justice. Informal contracts rely on trust, reciprocity, and interdependence. • Risks: Factors that may jeopardize the contract. These include
egoism,
individualism, societal changes, lack of commitment, and generational conflict. • Maintenance is required to keep the contract up. Formal contracts are maintained through government regulations. Informal contracts are maintained through traditions, norms, rituals (such as filial piety), affection, and duty. == Economic and demographic implications ==