health economics – Flashcards

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adverse selection
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high-risk individuals are attracted to the pool selection reduces the efficiency of health insurance markets while redistributing income demand
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Supplier-induced demand
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the person that is paid for the service determines how often the service is provided - creates conflict of interest
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Moral hazard
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People with insurance have less incentive to avoid risky behaviour less attention paid to prevention more healthcare consumption demand side
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cherry picking
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intense competition to only enrol healthy populations in managed care plans supply side
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externality
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an economic side effect of a good or service that generates benefits or costs to someone other than the person deciding how much to produce or consume
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Pareto-optimum
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allocative efficiency
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economic features of healthcare markets
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• Heterogeneous products • Exit barriers • Entry barriers • Information a-symmetry • Limited amount/number of supplier
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Health economic approach
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-Imperfect markets •Imperfect information •External effects •Collective/public good
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main types of health insurance
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Tax finance (NHS) Private insurance(e.g. USA) Social insurance(e.g. Germany)
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conditions of a perfect competitive market
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- many consumers and many producers - no single price setter, the price is given - perfect information - all good produced are homogenous goods - free entry - free exit
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income effect
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the change in consumption resulting from a change in real income
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normal good
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a good that consumers demand more of when their incomes increases Income elasticity bigger/or 0
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inferior good
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a good that consumers demand less of when their incomes increase Income elasticity below 0
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luxury good
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A good with an income elasticity of demand greater than one; a subset of normal goods. Income elasticity above 1
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market failure
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a situation in which the market does not distribute resources efficiently
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market failures healthcare
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Uncertainty Moral hazard Asymmetric information (Principal-Agent problem) externalities
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government failure
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government intervention that fails to improve economic outcomes
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price elasticities
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% change in demand / 1% change in price
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income elasticities
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change in demand due to change in income
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utility
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ability or capacity of a good or service to be useful and give satisfaction to someone
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price elasticity
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A measure of the sensitivity of demand to changes in price
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mean price elasticity healthcare
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-0.2 (RAND experiment)
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inelastic demand
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demand in which changes in price have little or no effect on the amount demanded
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coinsurance
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part of charges that an insured person must pay for health care services after payment of the deductible amount
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co-payment
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a small fixed fee paid by the patient per treatment
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Evidence for effectiveness of cost-sharing
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Rand Experiment: reduces usage of services by 30%
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Issues with deductibles
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patient heterogeneity (health status) benefit heterogeneity (medical benefits) no incentive for containment for chronically ill higher out-of-pocket expenses for chronically ill
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shifted deductibles
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interval payments
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iron triangle
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Access Cost Quality
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principal agent problem
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a problem caused by an agent pursuing his own interests rather than the interests of the patients
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parties involved in healthcare
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Patients Providers Payers
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agency problems in HC
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information deficit difficult to monitor quality by patients cream skimming by insurers adverse selection supplier induced demand
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Supplier induced demand
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when practitioners have financial interest in additional treatments diminishing marginal increase of SID if supply increases more SID if physicians earn less that reference income
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fee-for-service
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method of payment under which a provider's payment is based on each service performed evidence of overprovision
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utility maximization
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an assumption that people try to achieve the highest level of utility given their budget constraint
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Reinhardt's fee test
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If an increasing supply of doctors results in higher fees (P1>P0) = evidence of SID No conclusive evidence
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Small area variation(SAV)
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tool to describe how rates of health care use and events vary over well-defined geographic areas
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SAV
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Physicians uncertainty Physicians lack of knowledge
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Reduce principal-agent-problems
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contract design selection of agents reputation mechanism peer pressure code of conduct malpractice suits
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agency theory
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The analysis of how asymmetric information problems affect economic behaviour
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social welfare
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consumer surplus producer surplus summed over all individuals
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resource allocation in HC
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marginal benefits equal marginal costs-->reducing mortality up to convergence points implies socially optimal mortality rate geeater than zero
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quality in HC
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quality goes up if consumers more sensitive to quality quality goes down if consumers more sensitive in price positive effect of competition
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Regulated price system (competition)
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competition can be beneficial improved quality welfare effects are unclear
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free price system (competition)
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no clear evidence in favour of competition mixed evidence if competition increases prices
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insurance
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Risk pooling transfer of risk destruction of risk
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Demand for insurance
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risk aversion loss-probability loss loading fee income/wealth moral hazard
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Insurance Premium
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risk premium+loading fee+profits
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Perfect competition
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expected profits will tend to zero
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taxonomy
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identification, naming, and classification
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social insurance programmes
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provided through regulation and taxes (Folland) Mandatory (Mossialos) Element of cross subsidy necessary (Enthoven)
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solidarity principle
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high risk individuals receive subsidy from low risk individuals to increase access to health care
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Why is health insurance different?
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ex-ante appraisal of losses difficult moral hazard mandatory reimbursement even when engaging in risk activities cross subsidies
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Reasons for Mandatory cross-subsidies
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Externalities financial risk of becoming a high risk in the future moral hazard
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Motives for mandatory insurance
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prevention of free riding lack of foresight high transaction cost of alternative ways to organize cross-subsidies
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free riding
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enjoying the benefits of some good or action while letting others bear the costs
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merit good
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a socially desirable good which is under-provided by the market mechanism
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Functions for 3rd party in HC
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insurance function agency function access function
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payment models in HC
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reimbursement model contract model integrated model
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Three waves of HC reform
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universal coverage and access controls, rationing and expenditure caps incentives and competition
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Problems of first wave of HC reform
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uncontrollable health care cost inflation as a result of absence of constraints on demand and supply
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Cost Containment in HC
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co-payments co-insurance deductibles rate regulation quality monitoring global budgeting
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Problems of cost containment polices
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conflicts between rationing and access to care supply and price regulation result in inefficient allocation of resources cannot contain cost in the long run
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regulated competition
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competition can be beneficial improved quality welfare effects are unclear
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equity in HC
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Collective Action is appropriate complete equality is rejected complete autonomy is rejected
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efficiency in HC
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perfect efficiency s not attainable most people believed more treatment better than less
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Managed competition
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Triangle Consumer Health Plan Sponsor
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sponsors in HC
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collective agents on the demand side contract with competing health plans guarantor of coverage
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counteract market failure
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pricing risk adjustment quality assurance standard benefit packages
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types of subsidies
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risk adjustment subsidies premium adjusted subsidies excess loss compensation to insurers
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premium adjusted subsidies
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reduce incentives for high risk consumers for lowest premium induce over insurance misallocation of subsidies
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requirements for implementation of shifted deductibles
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data about the patients' health status annual costs of the services for each patient or group of patients well informed patients knowledge about the 'really necessary' services
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requirements for implementation of value-based insurance design
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Information absolute cost-effectiveness available services/treatments information disease distribution among patients cooperation across organizations to identify specific patient groups data privacy
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Is cost sharing the best solution for achieving efficiency in health care systems?
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Incentives for efficiency should be at both sides combined with more emphasis in preventive actions bonus systems for providers continued education programs for health care providers
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Deductible
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certain amount of money consumers pay their health care expenses out-of-pocket
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Why cost sharing?
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major part of costs is shifted from provider to consumer effective way of reducing costs from public to private sector involve patients in health decision making process
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capitation
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Rewards cost-efficient and effective care provided Less risk of supplier induced demand More financial risk for the physician Risk of withholding of expensive care
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Health Production Function
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what can be produced with given inputs substitution between inputs diminishing marginal product
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Economies of Scale for Hospitals
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up to 250 beds bigger is not better quality not always considered
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