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Resolving the ‘cost-effective but unaffordable’ ‘paradox’: estimating the health opportunity costs of non-marginal budget impacts: Estimating the Health Opportunity Costs of Nonmarginal Budget Impacts

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JournalValue in Health
DateAccepted/In press - 10 Oct 2017
DateE-pub ahead of print - 4 Jan 2018
DatePublished (current) - Mar 2018
Issue number3
Volume21
Number of pages10
Pages (from-to)266-275
Early online date4/01/18
Original languageEnglish

Abstract

Considering whether or not a proposed investment (an intervention, technology, or program of care) is affordable is really asking whether the benefits it offers are greater than its opportunity cost. To say that an investment is cost-effective but not affordable must mean that the (implicit or explicit) "threshold" used to judge cost-effectiveness does not reflect the scale and value of the opportunity costs. Existing empirical estimates of health opportunity costs are based on cross-sectional variation in expenditure and mortality outcomes by program budget categories (PBCs) and do not reflect the likely effect of nonmarginal budget impacts on health opportunity costs. The UK Department of Health regularly updates the needs-based target allocation of resources to local areas of the National Health Service (NHS), creating two subgroups of local areas (those under target allocation and those over). These data provide the opportunity to explore how the effects of changes in health care expenditure differ with available resources. We use 2008-2009 data to evaluate two econometric approaches to estimation and explore a range of criteria for accepting subgroup specific effects for differences in expenditure and outcome elasticities across the 23 PBCs. Our results indicate that health opportunity costs arising from an investment imposing net increases in expenditure are underestimated unless account is taken of likely nonmarginal effects. They also indicate the benefits (reduced health opportunity costs or increased value-based price of a technology) of being able to "smooth" these nonmarginal budget impacts by health care systems borrowing against future budgets or from manufacturers offering "mortgage" type arrangements.

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© 2017, International Society for Pharmacoeconomics and
Outcomes Research (ISPOR). Published by Elsevier Inc. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy.

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