Evidence map›Paper›PMID 28801131›Full record

ArticleJournal of health economics2017

Health care demand elasticities by type of service.

Randall P Ellis, Bruno Martins, Wenjia Zhu

Open access · greenAbstract read
In one paragraph

Article in Journal of health economics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
38.3field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

33 citing papers in PubMed, 105 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Randall P EllisBoston University, Department of Economics, United States. Electronic address: ellisrp@bu.edu.
Bruno MartinsBoston University, Department of Economics, United States. Electronic address: bmartins@bu.edu.
Wenjia ZhuHarvard Medical School, Department of Health Care Policy, United States. Electronic address: zhu@hcp.med.harvard.edu.
Boston University · USHarvard University · US

Funding

Mental Health Coverage in Health Care ReformR01MH094290 · NIMH · HARVARD MEDICAL SCHOOL · PI MCGUIRE, THOMAS G. · 2011 to 2015
$2.1M
NIMH NIH HHS R01 MH094290
6 · The paper itself

Abstract

We estimate within-year price elasticities of demand for detailed health care services using an instrumental variable strategy, in which individual monthly cost shares are instrumented by employer-year-plan-month average cost shares. A specification using backward myopic prices gives more plausible and stable results than using forward myopic prices. Using 171 million person-months spanning 73 employers from 2008 to 2014, we estimate that the overall demand elasticity by backward myopic consumers is -0.44, with higher elasticities of demand for pharmaceuticals (-0.44), specialists visits (-0.32), MRIs (-0.29) and mental health/substance abuse (-0.26), and lower elasticities for prevention visits (-0.02) and emergency rooms (-0.04). Demand response is lower for children, in larger firms, among hourly waged employees, and for sicker people. Overall the method appears promising for estimating elasticities for highly disaggregated services although the approach does not work well on services that are very expensive or persistent.

Indexed as

AdolescentAdultChildChild, PreschoolCost SharingHealth Benefit Plans, EmployeeHealth ExpendituresHealth ServicesHealth Services Needs and DemandHumansInfant, NewbornMiddle AgedUnited StatesYoung AdultCost sharingDynamic demand for health careElasticityHigh deductible health plansMyopic expectations

Identifiers

PMID28801131
PMCPMC5600717
OpenAlexW2740194671

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.