• Health insurance design and its effects on utilization and welfare, contrasting cost sharing with full coverage, the role of deductibles, and welfare losses. Empirical and theoretical work shows higher service use under full coverage and potential welfare gains from targeted cost-sharing [3], [17], [11], [16], [15], [1], [7].

• Information asymmetry and contract design in insurance markets: incomplete information, moral hazard, and incentive alignment through contractual provisions and organizational structures that mitigate conflicts [19], [5], [12], [14], [13].

• Pricing, regulation, and profitability in property-liability insurance: using capital-asset-pricing and contingent-claims reasoning to define fair premiums and underwriting profits; analysis of regulation and risk sharing [6], [9], [10], [18].

• Demand, elasticity, and policy instruments shaping health-insurance demand and coverage: empirical estimates of price/income elasticities, and the impact of subsidies and experimentation on insurance demand [11], [15], [17], [16].

• Risk preferences and decision making in insurance contexts: formalizing risk aversion across small and large stakes and its implications for pricing, coverage choices, and welfare [8], [17].