Student or educator? Sign up with your school email and get 6 months of Pro free.
CoChat
Sign Up
Cited by 493

The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.

Sources of Advantageous Selection: Evidence from the Medigap Insurance Market

Fang, Hanming, Keane, Michael P., Silverman, Dan·2008·Journal of Political Economy
DOI 10.1086/587623
Open this paper in CoChat — free account

Abstract

We provide evidence of advantageous selection in the Medigap insurance market and analyze its sources. Conditional on controls for Medigap prices, those with Medigap spend, on average, $4,000 less on medical care than those without. But if we condition on health, those with Medigap spend $2,000 more. The sources of this advantageous selection include income, education, longevity expectations, and financial planning horizons, as well as cognitive ability. Conditional on all these factors, those with higher expected medical expenditures are more likely to purchase Medigap. Risk preferences do not appear as a source of advantageous selection; cognitive ability is particularly important.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1086/587623

Cites

5 of 5 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 5 references

Research works printed but not linked: 50

  1. Arrow Kenneth, 1963, A.E.R., 53, 941
  2. Banthin Jessica S, 2001, Taylor
  3. 10.1097/00005650-198409000-00008 · doi:10.1097/00005650-198409000-00008
  4. Cawley John, 1999, A.E.R., 89, 827
  5. 10.1086/378526 · DOI · Paper page
  6. 10.1007/978-94-010-0642-2_11 · DOI · Paper page
  7. 10.1111/j.1756-2171.2006.tb00057.x · DOI · Paper page
  8. 10.1086/262111 · DOI · Paper page
  9. Choi James J, Developments in the Economics of Aging, edited by David A. Wise.
  10. CMS (Centers for Medicare and Medicaid Services). 2005., Choosing a Medigap Policy: A Guide to Health Insurance for People with Medicare
  11. Coelho Marta, Self Deception, Self Selection
  12. 10.1162/0034653053970294 · DOI
  13. Cohen Alma, 2007, A.E.R., 97, 745
  14. 10.1177/107755879705400301 · doi:10.1177/107755879705400301
  15. 10.1377/hlthaff.20.2.159 · doi:10.1377/hlthaff.20.2.159
  16. 10.1016/0277-9536(92)90133-B · doi:10.1016/0277-9536(92)90133-b
  17. 10.2307/2696408 · DOI · Paper page
  18. 10.1017/S1744133105001039 · doi:10.1017/s1744133105001039
  19. 10.1086/319557 · DOI
  20. 10.1016/S0167-6296(97)00011-8 · doi:10.1016/s0167-6296(97)00011-8
  21. Fang Hanming, Working Paper no. 12289 (June), NBER
  22. Finkelstein Amy, 2006, A.E.R., 96, 938
  23. 10.1086/379936 · DOI · Paper page
  24. Gibbs Deborah A, 1996, Health Care Financing Rev., 18, 55
  25. 10.1111/1475-6773.00037 · DOI
  26. 10.1016/S0304-4076(98)00058-X · doi:10.1016/s0304-4076(98)00058-x
  27. 10.2307/2937886 · DOI
  28. 10.1016/S0167-6296(96)00515-2 · doi:10.1016/s0167-6296(96)00515-2
  29. 10.1377/hlthaff.15.4.31 · DOI
  30. 10.1007/s00199-005-0040-z · DOI
  31. Kaiser Family Foundation, Medicare Chart Book
  32. 10.1016/S0094-1190(03)00086-X · DOI
  33. Khandker Rezaul K, 1996, McCormack
  34. 10.1177/107755879905600202 · DOI
  35. Koufopoulos Kostas, Asymmetric Information, Heterogeneity in Risk Perceptions and Insurance: An Explanation of a Puzzle
  36. Lewin Group, 2001, Report no., 2001
  37. Lillard Lee A, Working Paper no. 95‐16
  38. Lusardi Annamaria, 1998, A.E.R. Papers and Proc., 88, 449
  39. Maestas Nicole, Working Paper no. 504
  40. McCall Nelda, 1986, Health Services Res., 20, 633
  41. 10.2307/1881793 · DOI · Paper page
  42. 10.1086/261930 · DOI · Paper page
  43. 10.1016/0167-2681(82)90008-7 · DOI · Paper page
  44. Ridder Geert, Handbook of Econometrics
  45. Robst John, 2006, Health Res. and Educational Trust, 41, 2097
  46. 10.2307/1885326 · DOI · Paper page
  47. 10.1257/jel.38.2.332 · DOI · Paper page
  48. 10.1377/hlthaff.16.3.229 · doi:10.1377/hlthaff.16.3.229
  49. 10.1016/0022-0531(77)90004-7 · DOI · Paper page
  50. 10.1016/0167-6296(91)90024-H · DOI

Cited by

See all 493

Metadata

Authors
Fang, H., Keane, M. P., & Silverman, D.
Venue
Journal of Political Economy
Publisher
University of Chicago Press
Published
2008-04
Volume
116
Issue
2
Pages
303-350
ISSN
  • 0022-3808 (ISSN-L)
  • 1537-534X
DOI
10.1086/587623
OpenAlex
W3022196478
Cited by
493
References
5
FWCI
57.64
Type
journal article
Language
en
Open access
closed

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Sources of Advantageous Selection: Evidence from the Medigap Insurance Market. https://app.cochat.ai/papers/10.1086/587623
The paper
Fang, H., Keane, M. P., & Silverman, D. (2008). Sources of Advantageous Selection: Evidence from the Medigap Insurance Market. Journal of Political Economy. https://doi.org/10.1086/587623

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.