SOCIAL SCIENCE
RESEARCH NETWORK
EMPLOYEE BENEFITS, COMPENSATION & PENSION LAW ABSTRACTS
Sponsored by Pension Governance,
LLC
Vol. 8, No. 31: September 13,
2007
Editor: PAMELA J. PERUN
Policy Director, Aspen
Institute - Initiative on
Financial Security
PAMELA@PLANETNOW.COM
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Topic of This Issue:
Health Care
_________________________________________________________________
T A B L E O F C O N T E N T S
"Modeling Employee Choice of Health Plan"
CAROLINE CARLIN
University of Minnesota - Department of Applied
Economics
ROBERT J. TOWN
University of Minnesota - Twin Cities - School of
Public
Health, National Bureau of Economic Research
(NBER)
"Premium Growth between 1997 and 2004 and its Effect on
Employer-Sponsored Insurance"
THOMAS M. SELDEN
Agency for Healthcare Research and Quality (AHRQ)
JESSICA PRIMOFF VISTNES
U.S. Department of Health and Human Services -
Agency
for Healthcare Research & Quality (AHRQ) -
Center for
Financing, Access & Cost Trends
"Demand for High-Deductible and 'Consumer-Directed' Health Plans"
MELINDA BEEUWKES BUNTIN
The RAND Corporation
ROLAND D. MCDEVITT
Watson Wyatt Worldwide
HAYOUNG PARK
RAND Corporation
CHERYL DAMBERG
RAND Corporation
RYAN LORE
Watson Wyatt Worldwide - Watson Wyatt &
Company
"Benefit Limits for Behavioral Health Care in Private US Health
Plans"
DOMINIC HODGKIN
Brandeis University
CONSTANCE HORGAN
Brandeis University
DEBORAH GARNICK
Brandeis University
ELIZABETH MERRICK
Brandeis University
"State Health Insurance Mandates, Consumer Directed Health Plans
and Health Savings Accounts: Are They a Panacea for Small
Businesses?"
SUSAN M. GATES
RAND Corporation
KANIKA KAPUR
University College Dublin (UCD) - Department of
Economics
PINAR KARACA-MANDIC
RAND Corporation
"The Role of Health Insurance in the Joint Retirement of Married
Couples"
KANIKA KAPUR
University College Dublin (UCD) - Department of
Economics
JEANNETTE A. ROGOWSKI
University of Medicine & Dentistry of New
Jersey (UMDNJ)
- School of Public Health, National Bureau of
Economic
Research (NBER)
"Labor Market Effects of Employer-Provided Health Insurance"
KATERINA SHERSTYUK
University of Hawaii at Manoa - Department of
Economics
YOAV WACHSMAN
Coastal Carolina University - Wall College of
Business
GERARD RUSSO
University of Hawaii at Manoa - Department of
Economics
"Worker Sorting, Taxes and Health Insurance Coverage"
KEVIN LANG
Boston University - Department of Economics,
National
Bureau of Economic Research (NBER)
HONG KANG
Boston University - Department of Economics
_________________________________________________________________
"Modeling Employee Choice of Health Plan"
Contact: CAROLINE CARLIN
University of Minnesota -
Department of Applied
Economics
Email:
ccarlin@umn.edu
Auth-Page:
http://ssrn.com/author=709294
Co-Author: ROBERT J. TOWN
University of Minnesota - Twin
Cities - School of
Public Health, National Bureau
of Economic Research
(NBER)
Email:
rjtown@umn.edu
Auth-Page:
http://ssrn.com/author=183056
Abstract:
http://ssrn.com/abstract=996029
ABSTRACT: Much of the health care insurance coverage available in
the United States is offered in the context of plan choice. An
understanding of how to predict individuals' choice of health
plans is instrumental in understanding and managing these
markets. In addition, choice of plans is a key component in many
proposals for national health coverage in the US, so a good
understanding of the mechanisms of choice will assist in
evaluating these policy options.
This has lead to a broad class of literature, primarily in the
context of choice in employer-sponsored plans. The majority of
this literature relies on a logit model, a utility-based choice
framework. This model presumes the errors in the utilities are
independent and homoskedastic, an assumption often described as
the independence of irrelevant alternatives. This assumption is
violated when one alternative is a better substitute for a plan
than another, as we presume would hold when an indemnity plan is
marketed with two HMO plans. In order to accommodate this
violation, many researchers group the closer substitutes in a
nested logit model. This introduces heteroskedasticity across
nests, but still presumes independence of error terms across
choices.
This work adds to the literature on health plan choice and the
presence of asymmetric information in health insurance markets by
studying the health plan choice behavior of employees of a large
US employer. The work contributes to the literature by providing
a unified, logically consistent, utility-maximizing framework to
analyze health plan choice in the presence of asymmetric
information and risk aversion. Bayesian inference provides the
tools needed to allow unobserved preference shocks to be
correlated across choices in a flexible way, and for those shocks
to be correlated over time, within a multiperiod, multinomial
probit model. Various papers in the health plan choice literature
incorporate some of these features, but this is the first effort
that combines them all in a logically consistent way.
In this more flexible model, dimensions of health risk typically
unoberservable are found to influence choice, with sicker
individuals less likely to enroll in the tightly managed plan and
the high-deductible consumer-driven health plan. This is a
significant finding, as empirical evidence of adverse selection,
beyond that measured by observable factors, is rare.
Understanding the interactions between premiums and health risk
in determining health plan choice is important for assessing the
functioning of broadly defined health insurance markets.
Non-discrimination regulations in the United States require that
the employer not adjust individual contribution levels for
individual risk characteristics. Absent adjustment for
differences in the average health risk mix attracted to the plan,
plans that are expensive because their benefit design attracts
sicker patients are penalized in price equally with plans that
are expensive due to poor management. A greater understanding of
how asymmetric information plays out in the employer-based health
plan market will allow better discrimination between the premium
differences due to adverse selection, and those due to plan
inefficiencies. That information, in turn, can lead to more
cost-effective health plan benefit design.
______________________________
"Premium Growth between 1997 and 2004 and its Effect on
Employer-Sponsored Insurance"
Contact: THOMAS M. SELDEN
Agency for Healthcare Research
and Quality (AHRQ)
Email:
Thomas.Selden@ahrq.hhs.gov
Auth-Page:
http://ssrn.com/author=49198
Co-Author: JESSICA PRIMOFF VISTNES
U.S. Department of Health and
Human Services -
Agency for Healthcare Research
& Quality (AHRQ) -
Center for Financing, Access
& Cost Trends
Email:
jvistnes@ahrq.gov
Auth-Page:
http://ssrn.com/author=53454
Abstract:
http://ssrn.com/abstract=993552
ABSTRACT: While economic theory predicts that workers bear the
cost of rising health insurance premiums with reductions in wages
and/or other benefits, empirical evidence on the existence of a
wage-health insurance tradeoff has been mixed. Empirical analyses
have been hampered by the fact that individuals with
employer-sponsored insurance (ESI) are usually more skilled and
have higher wages than those without insurance. For instance, a
simple regression of wages on the presence of health insurance
typically leads to a positive, rather than a negative
relationship.
Several recent studies have used difference-in-differences
strategies to explore this topic across geographic areas with
differing health care costs or inflation rates. For instance,
Sheiner (1999) finds evidence that age-wage profiles are flattest
in high-health cost areas, reflecting the incidence of health
costs on workers' wages. Sommers (2005) finds evidence that when
employers are faced with rising premiums, the increased insurance
costs can be better absorbed through wage adjustments in areas
with high general inflation or by high wage workers. Both of
these studies analyzed household level survey data.
We extend this literature using employer level data from the
1999-2004 Medical Expenditure Panel Survey - Insurance Component
(MEPS-IC), a large, nationally representative survey of employers
and their health insurance plans. We also extend prior work in
that we use difference-in-differences strategies to examine the
effect of high premium growth on a wider set of health insurance
outcomes: the likelihood that an employer will offer insurance,
the levels of employee premium contributions and the generosity
of benefits. Our strategies involve comparing areas with varying
levels of premium growth, general inflation and employers with
different wage distributions.
To form premium-specific inflation measures, we predict values
from a hedonic regression of MEPS-IC premiums on various
MSA-level measures of health care costs as well as plan type and
benefits. MSA-level predictions are then formed by fixing plan
type and benefits, so that the only source of variation is health
care costs. To identify areas with varying levels of inflation,
we combine the MEPS-IC data with the CPI for Metropolitan
Statistical Areas (which provides MSA-specific inflation rates
over time).
The MEPS-IC data are arguably better suited for studying many
aspects of the ESI market than are widely-used household data
sources such as the CPS or the MEPS-Household Component and
provides a rich data resource for exploring a wide range of
hypotheses regarding the impact of premium growth on the presence
and generosity of ESI offers.
______________________________
"Demand for High-Deductible and 'Consumer-Directed' Health Plans"
Author: MELINDA BEEUWKES BUNTIN
The RAND Corporation
Email:
buntin@rand.org
Auth-Page:
http://ssrn.com/author=21428
Contact: ROLAND D. MCDEVITT
Watson Wyatt Worldwide
Email:
roland.mcdevitt@watsonwyatt.com
Auth-Page:
http://ssrn.com/author=398695
Co-Author: HAYOUNG PARK
RAND Corporation
Email:
Hayoung_Park@rand.org
Auth-Page:
http://ssrn.com/author=829112
Co-Author: CHERYL DAMBERG
RAND Corporation
Email:
Cheryl_Damberg@rand.org
Auth-Page:
http://ssrn.com/author=829113
Co-Author: RYAN LORE
Watson Wyatt Worldwide -
Watson Wyatt & Company
Email:
Ryan.lore@watsonwyatt.com
Auth-Page:
http://ssrn.com/author=829114
Abstract:
http://ssrn.com/abstract=994360
ABSTRACT: Enrollment in ?consumer-directed? health insurance
plans - plans with high deductibles that are frequently coupled
with personal savings accounts - has soared over the past four
years and now exceeds 5 million. Approximately a third of firms
offering health insurance benefits now offer a high-deductible
plan and another third say they are interested in doing so. At
the same time, prior studies have found that consumers prefer
low-deductible plans, say they are willing to pay a premium for
them, and are less satisfied when enrolled in high-deductible
plans.
This paper explores the determinants of enrollment in
consumer-directed plans using data from a survey of 40 employers
offering high-deductible plans. The sample of employers was
stratified by the level of the deductible, the type of account
offered (if any), and level of employer contributions to the
account. The survey asks the employers for detailed information
about their plan offerings, plan benefit designs, and enrollment
levels; this includes information about both their
consumer-directed option and any traditional HMOs or PPOs they
may offer. It also asks about their consumer-directed plan
implementation strategy and about resources available to help
employees choose the best plan for them.
We explored the factors associated with higher levels of
enrollment when consumer-directed plans are offered alongside
other options. These included three types of variables motivated
by economic theory: 1) financial variables including plan benefit
design elements such as deductible levels and employer
contributions towards accounts; 2) behavioral variables such as
requiring employees to make a proactive choice of plan each year;
3) information provision through employee communications. We find
that factors within all three types of variables are important
predictors of enrollment levels. We interpret our results about
enrollment elasticities cautiously given our sample size, but do
discuss the relative magnitudes of these effects and their
implications.
______________________________
"Benefit Limits for Behavioral Health Care in Private US Health
Plans"
Contact: DOMINIC HODGKIN
Brandeis University
Email:
hodgkin@brandeis.edu
Auth-Page:
http://ssrn.com/author=505504
Co-Author: CONSTANCE HORGAN
Brandeis University
Email:
horgan@brandeis.edu
Auth-Page:
http://ssrn.com/author=505506
Co-Author: DEBORAH GARNICK
Brandeis University
Email:
garnick@brandeis.edu
Auth-Page:
http://ssrn.com/author=505496
Co-Author: ELIZABETH MERRICK
Brandeis University
Email:
merrick@brandeis.edu
Auth-Page:
http://ssrn.com/author=505525
Abstract:
http://ssrn.com/abstract=993200
ABSTRACT: Rationale: In the US, most private health plans cover
treatment for mental health and substance abuse, but they have
traditionally imposed special limits on that coverage. These
include annual and/or lifetime limits on visits, episodes or
dollars, separate from any limits applied to medical care. In
1997 the federal government banned dollar limits on mental health
care that differed from medical limits. In addition various
states have passed parity laws constraining insurers' use of
limits, although many large employers are exempt. Some analysts
have argued that health plans may in any case have less need to
use limits now than previously, as the spread of managed care has
provided them with other tools with which to constrain
utilization, such as gatekeeping, provider incentives and
preauthorization.
Objectives: (1) Describe the prevalence of benefits limits for
behavioral health care in private health plan coverage. (2)
Compute the out-of-pocket exposure facing high users of
behavioral health care in different products, as a function of
copayments and limits. (3) Examine how the use and stringency of
limits relates to other plan practices, such as gatekeeping and
the number of visits allowed before the provider must seek
reauthorization from the plan.
Data: Our 2003 Survey on Alcohol, Drug Abuse and Mental Health
Services collected detailed data on administrative and clinical
aspects of behavioral health care delivery from 368 commercial
health plans in 60 US market areas, yielding national estimates
of plan features (83% response rate). This paper relies on
respondents' answers to questions about benefits in their three
most commonly purchased packages within each insurance product.
Methods: Out-of-pocket exposure for a high user is computed as
the amount a consumer would pay for 30 outpatient visits in a
year, assuming that providers charge $100 per visit. Bivariate
tests are used to verify the significance of associations between
use of special limits and other plan features. We also estimate
multivariate models to predict the extent of out-of-pocket
exposure across plans, as a function of utilization management
approaches and various plan characteristics.
Results: 86% of plans had special annual limits for outpatient
mental health care, mostly limits on visits (mode: 20 visits).
80% of plans had had special annual limits for inpatient mental
health care, mostly limits on days (mode: 30 days). One-third of
plans had a separate annual limit for outpatient substance abuse
care (typically limiting visits), and these included some plans
that did not limit mental health care. Lifetime limits were much
less common than annual limits.
Among the plans studied, the mean out-of-pocket cost for 30
visits would be $951 (median: $900). However, in 35% of plans the
cost would only be $450. Preliminary analyses indicate that the
projected out-of-pocket cost is highest in preferred provider
organizations (PPOs). Plans whose benefits imposed more
out-of-pocket costs tended to also authorize fewer sessions
initially through their utilization review process (correlation=
?0.63).
Conclusions: Despite the universality of managed care, most US
health plans continue to maintain benefit limits introduced in
the pre-managed era. For high users of behavioral health care,
these limits could result in substantial financial burden.
______________________________
"State Health Insurance Mandates, Consumer Directed Health Plans
and Health Savings Accounts: Are They a Panacea for Small
Businesses?"
RAND Working Paper No. WR-450-ICJ
Contact: SUSAN M. GATES
RAND Corporation
Email:
sgates@rand.org
Auth-Page:
http://ssrn.com/author=861662
Co-Author: KANIKA KAPUR
University College Dublin
(UCD) - Department of
Economics
Email:
kanika.kapur@ucd.ie
Auth-Page:
http://ssrn.com/author=349131
Co-Author: PINAR KARACA-MANDIC
RAND Corporation
Email:
pinar@rand.org
Auth-Page:
http://ssrn.com/author=345011
Full Text:
http://ssrn.com/abstract=1012463
ABSTRACT: Small firms in the United States that seek to offer
health insurance to their employees have historically reported
problems with the availability and affordability of their
options. The cost of health insurance has been the primary
concern of small business owners for several decades. This paper
examines the effect to date of two types of policy initiatives
that could have substantial benefits for small business: state
health insurance mandates and key components of CDHPs-HSAs, HRAs
and high deductible health plans. It summarizes the key policy
issues, reviews existing research evidence on the effect of these
initiatives on small business and offer some conclusions for
policymakers.
______________________________
"The Role of Health Insurance in the Joint Retirement of Married
Couples"
Contact: KANIKA KAPUR
University College Dublin
(UCD) - Department of
Economics
Email:
kanika.kapur@ucd.ie
Auth-Page:
http://ssrn.com/author=349131
Co-Author: JEANNETTE A. ROGOWSKI
University of Medicine &
Dentistry of New Jersey
(UMDNJ) - School of Public
Health, National Bureau
of Economic Research (NBER)
Email:
rogowsje@umdnj.edu
Auth-Page:
http://ssrn.com/author=400636
Abstract:
http://ssrn.com/abstract=993186
ABSTRACT: This paper examines the role of employer provided
health insurance in the retirement decisions of dual working
couples. The near elderly have high-expected medical
expenditures; therefore, availability of health insurance is an
important factor in their retirement decisions. We determine if
access to retiree health insurance for early retirement enables
couples to time their retirement together ? a behavior called
?joint retirement.? Access to retiree health insurance for early
retirees through either husband's or wife's employer should
increase the propensity to retire jointly. To illustrate, for a
typical near-elderly couple where the husband is two years older
than the wife, the husband is eligible for Medicare two years
earlier than his wife. If either spouse has health insurance that
can cover the wife after retirement, the wife will be able to
retire with her husband when he is sixty-five and maintain health
insurance coverage. On the other hand, if the wife has employer
provided health insurance, but no access to post-retirement
health insurance, the wife will need to postpone retirement until
she reaches sixty-five, reducing the couple's ability to jointly
retire. This is a form of ?job lock.?
We examine the effect of health insurance on joint retirement
using data from the Health and Retirement Study (HRS). We
estimate a multinomial logit model of the timing of couples'
retirement behavior as a function of health insurance
availability. We find that wives' retiree health insurance more
than doubles the propensity to retire jointly, suggesting that
health insurance is an important consideration in coordinating
retirement decisions among couples. Even though retiree health
insurance has a substantial effect on joint retirement, its
effect on overall employment patterns is modest, accounting for a
2 percentage point fall in employment.
We extend this analysis to examine whether retiree health
insurance allows couples to jointly retire earlier than they
would have been able to in the absence of retiree health
insurance. Understanding joint retirement behavior is important
in order to obtain accurate projections of labor force
participation in the future. Over the past decade, the provision
of retiree health benefits has steadily declined ? from 68
percent of retirees in 1992 to 45 percent in 2002. These trends
suggest that couples will increasingly find it difficult to time
their retirement together and yet maintain affordable health
insurance coverage for both spouses. Initiatives to increase
health insurance availability may increase the welfare of the
near-elderly by making joint retirement more feasible.
______________________________
"Labor Market Effects of Employer-Provided Health Insurance"
Economic Inquiry, Vol. 45, No. 3, pp. 538-556, July 2007
Contact: KATERINA SHERSTYUK
University of Hawaii at Manoa
- Department of
Economics
Email:
KATYAS@HAWAII.EDU
Auth-Page:
http://ssrn.com/author=295903
Co-Author: YOAV WACHSMAN
Coastal Carolina University -
Wall College of
Business
Email:
yoav@coastal.edu
Auth-Page:
http://ssrn.com/author=450544
Co-Author: GERARD RUSSO
University of Hawaii at Manoa
- Department of
Economics
Email:
russo@hawaii.edu
Auth-Page:
http://ssrn.com/author=102589
Full Text:
http://ssrn.com/abstract=994411
ABSTRACT: This is an experimental study in economics of mandated
benefits. Most individuals who have health insurance in the
United States obtain it through their employer. Some states
require employers to provide insurance to certain types of
workers. We used an experimental laboratory to investigate
possible effects of alternative health insurance regulations on
the competitive labor market performance. We found that mandating
the insurance for all workers creates labor market distortions,
whereas mandating the insurance only for full-time workers leads
to a higher coverage than under no mandate, an increased number
of part-time workers, but does not necessarily lower market
efficiency.
______________________________
"Worker Sorting, Taxes and Health Insurance Coverage"
NBER Working Paper No. W13066
Contact: KEVIN LANG
Boston University - Department
of Economics,
National Bureau of Economic
Research (NBER)
Email: lang@bu.edu
Auth-Page:
http://ssrn.com/author=232414
Co-Author: HONG KANG
Boston University - Department
of Economics
Email:
kanghong@bu.edu
Auth-Page:
http://ssrn.com/author=845423
Full Text:
http://ssrn.com/abstract=986916
ABSTRACT: We develop a model in which firms hire heterogeneous
workers but must offer all workers insurance benefits under
similar terms. In equilibrium, some firms offer free health
insurance, some require an employee premium payment and some do
not offer insurance. Making the employee contribution pre-tax
lowers the cost to workers of a given employee premium and
encourages more firms to charge. This increases the offer rate,
lowers the take-up rate, increases (decreases) coverage among
high (low) demand groups, with an indeterminate overall effect.
We test the model using the expansion of section 125 plans
between 1987 and 1996. The results are generally supportive.