Essays on the Economics of Selected Multi-Period Insurance Decisions with Private Information

Essays on the Economics of Selected Multi-Period Insurance Decisions with Private Information

Author: Petra Steinorth

Publisher: VVW GmbH

Published: 2011

Total Pages: 146

ISBN-13: 3862980790

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"Petra Steinorth präsentiert in ihrer in englischer Sprache vorgelegten kumulativen Dissertationsschrift drei theoretische Modelle, die Versicherungsentscheidungen über mehrere Perioden und bei privater Information seitens der Versicherungsnehmer ökonomisch untersuchen. Die Dissertation leistet einen wichtigen Beitrag zur theoretischen Forschung im Bereich Versicherungsökonomie, da insbesondere zu mehrperiodigen Fragestellungen noch großer Forschungsbedarf besteht: Der Beitrag ""Impact of Health Savings Accounts on Precautionary Savings, Demand for Health Insurance and Prevention Effort"" untersucht den Einfluss von steuerlich begünstigten Gesundheitssparkonten auf das Sparverhalten, die Nachfrage nach Krankenversicherung und Prävention. Im zweiten Beitrag ""Yes, No, Perhaps - Explaining the Demand for Risk Classification Insurance with Imperfect Private Information"" wird untersucht, welche Granularität der Risikoklassifizierung optimal ist, wenn die Versicherungsnehmer unvollständige private Information über ihren zukünftigen Risikotyp haben. Der dritte Beitrag ""The Demand for Enhanced Annuities"" analysiert die Reaktion des Marktes auf die Einführung von sogenannten Enhanced Annuities. Dabei handelt es sich um Rentenversicherungsprodukte, die die individuelle Lebenserwartung bei der Tarifierung berücksichtigen. Die wissenschaftliche Arbeit ist auch für Mitarbeiter in Versicherungsunternehmen von Interesse, da sie wichtige Bereiche des Produktmanagements in der Lebens- und Krankenversicherung behandelt. Petra Steinorth ́s dissertation consists of three theoretical models, which all examine the economics of selected multi-period insurance decisions with private information on the part of the insured. The thesis makes an important contribution to insurance economics literature as multi-period problems have not yet been widely studied. The article ""Impact of Health Savings Accounts on Precautionary Savings, Demand for Health Insurance and Prevention Effort"" investigates how tax incentives like health savings accounts influence savings for medical costs, the demand for health insurance and ex ante moral hazard. The second article ""Yes, no, perhaps - Explaining the Demand for Risk Classification Insurance"" examines the optimal risk classification in case the insured have incomplete private information regarding their future risk type. The third article ""The Demand for Enhanced Annuities"" analyzes the market reaction to the introduction of so-called enhanced annuities, which are annuities that take individual factors influencing life expectancy into account for pricing. The scientific dissertation is also of interest to insurance practitioners as it examines important issues in the field of health and life insurance product management."


Imperfect Insurance Markets

Imperfect Insurance Markets

Author: Annette Hofmann

Publisher: VVW GmbH

Published: 2009

Total Pages: 191

ISBN-13: 3862981134

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The focus of this thesis is on consumer diversity. Incorporating consumer heterogeneity into economic analysis is well-established in industrial organization literature; this aspect is, however, often neglected in microeconomic insurance models. A first new approach lies in analyzing risk interdependencies. When risks are interdependent, an agent's decision to self-protect affects the loss probabilities faced by others. Due to these externalities, economic agents invest too little in prevention relative to the socially efficient level by ignoring marginal external costs or benefits conferred on others. We analyze an insurance market with externalities of loss prevention. It is shown in a model with heterogenous agents and imperfect information that a monopolistic insurer can achieve the social optimum by engaging in premium discrimination. An insurance monopoly reduces not only costs of risk selection, but may also play an important social role in loss prevention. This result can be empirically confirmed. We also deal with the impact of intermediation on insurance market transparency and performance. In a differentiated insurance market under imperfect information, uninformed consumers may become informed about product suitability by consulting an intermediary. We analyze current broker compensation systems: commissions and fees. While insurers' equilibrium profits are equivalent under both systems, social welfare under fees is first-best efficient. Both systems may offer the opportunity to increase profits via collusion. Under a commission system, collusion enables insurers to separate consumers into groups purchasing different contracts. Insurers may then extract additional rents from some consumers. This might explain why intermediaries tend to be compensated by insurers in practice. Finally, we study optimal monopoly pricing given imperfect information and heterogenous policyholders. Die in englischer Sprache verfasste Arbeit ist der mikroökonomischen Analyse von Versicherungsmärkten gewidmet. Zunächst werden einige wichtige theoretische Grundlagen der Versicherungsnachfragetheorie beschrieben. Eine zentrale Erweiterung des Basismodells stellen interdependente Risiken dar. Bestehen Risikointerdependenzen, so sind alle Maßnahmen, die die Schadenshäufigkeit reduzieren, mit positiven externen Effekten verbunden. Es wird gezeigt, dass im Gleichgewicht das realisierte Präventionsniveau unterhalb des optimalen Niveaus angesiedelt ist. Aufgrund der Externalitäten kommt es zu einem Marktversagen und nur ein Monopolversicherer kann eine differenzierte Prämienstruktur herbeiführen, die zum optimalen Präventionsniveau führt. Dieses Ergebnis kollidiert mit dem Ergebnis, dass wettbewerbliche Versicherungsmärkte zu einer höheren Gesamtwohlfahrt führen, es lässt sich jedoch empirisch stützen. Ein weiterer Schwerpunkt der Arbeit liegt auf unvollkommenen Versicherungsmärkten, wobei heterogene Versicherungsnachfrager mit unterschiedlichen Produktpräferenzen und Informationskosten unterstellt werden. In einem solchen Markt erhöhen Versicherungsvermittler die Markttransparenz und damit auch die Gewinne der Versicherer. Im Mittelpunkt steht die Analyse verschiedener Vergütungsformen der Vermittler. Ein Vergütungssystem auf Basis von Beratungshonoraren ist einem Provisionssystem aus wohlfahrtsökonomischer Perspektive vorzuziehen. Aus Sicht der Versicherer kehrt sich dieses Ergebnis allerdings um, sobald es zur Kollusion zwischen Versicherern und Vermittlern kommt. Der letzte Schwerpunkt liegt in der Analyse einer optimalen Preispolitik eines Versicherungsmonopolisten bei heterogenen Nachfragern, die sich durch ihre Risikopräferenzen und damit ihre individuelle Zahlungsbereitschaft für Versicherungen unterscheiden.


Three Essays on Competition and Health Insurance Markets

Three Essays on Competition and Health Insurance Markets

Author: Juan Gabriel Fernandez

Publisher:

Published: 2012

Total Pages: 294

ISBN-13:

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Abstract: Health care systems are complex organizations. Multiple agents interact in different settings to provide health care, each one of them with different objectives and information. How markets are organized and which actions are allowed, has a direct impact on the incentives agents face when making health care choices. In this dissertation, I study the determinants and effects of these choices on market outcomes, focusing on private health insurance markets. The first chapter provides insights about health insurance markets in which workers, rather than firms, choose insurance plans in an imperfect competition setting. Using a unique dataset that includes every person enrolled in private plans in Chile in 2009, I estimate underlying preference parameters over health insurance features. I find large heterogeneity in the valuation of these features across age-sex-groups and individual types. Individual characteristics play an important role on health plan choices and therefore, can be used by insurers to design plans targeted to specific groups and for patient selection. The second chapter presents a theoretical model where private insurers compete with a free public alternative to attract clients. Using a two-type model I show that if private insurance companies offer a non-rationing alternative and the public system rationing is done through random selection, an efficiency trap may exist. A marginal increase in the budget allocated to the public system can potentially reduce the expected welfare for all types. This result extends to a model with multiple types, but the negative welfare impact is offset by a crowding-in effect among the rich. Finally, the third chapter provides a general analytical framework that can be used to evaluate risk selection under different health care models. The model is based on the interactions between the four key agents present in every health care system: sponsors, health plans, providers and customers. This framework is used to review risk selection in four countries in the Americas -Canada, Chile, Colombia, and the U.S.-, showing how regulatory policies both create and ameliorate it, and in some cases are as important as risk adjustment, risk sharing and risk selection strategies for reducing risk selection.


Foundations of Insurance Economics

Foundations of Insurance Economics

Author: Georges Dionne

Publisher: Springer Science & Business Media

Published: 1992

Total Pages: 748

ISBN-13: 0792392043

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Economic and financial research on insurance markets has undergone dramatic growth since its infancy in the early 1960s. Our main objective in compiling this volume was to achieve a wider dissemination of key papers in this literature. Their significance is highlighted in the introduction, which surveys major areas in insurance economics. While it was not possible to provide comprehensive coverage of insurance economics in this book, these readings provide an essential foundation to those who desire to conduct research and teach in the field. In particular, we hope that this compilation and our introduction will be useful to graduate students and to researchers in economics, finance, and insurance. Our criteria for selecting articles included significance, representativeness, pedagogical value, and our desire to include theoretical and empirical work. While the focus of the applied papers is on property-liability insurance, they illustrate issues, concepts, and methods that are applicable in many areas of insurance. The S. S. Huebner Foundation for Insurance Education at the University of Pennsylvania's Wharton School made this book possible by financing publication costs. We are grateful for this assistance and to J. David Cummins, Executive Director of the Foundation, for his efforts and helpful advice on the contents. We also wish to thank all of the authors and editors who provided permission to reprint articles and our respective institutions for technical and financial support.


Essays on the Economics of Health Insurance Markets

Essays on the Economics of Health Insurance Markets

Author: Richard Domurat

Publisher:

Published: 2018

Total Pages: 200

ISBN-13:

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This dissertation includes three chapters on the health insurance markets established by the Affordable Care Act (ACA), known as exchanges. Chapter 1 estimates the demand for each plan in the California exchange using a discrete choice model. The model incorporates heterogeneity in consumer preferences and in product characteristics, including hospital and primary care physician (PCP) networks. Endogeneity of prices is addressed using networking hospital costs as instruments, and prices for any given plan can vary across consumers within a market. Consumers are highly sensitive to prices, with market shares declining by 3%-5% for just a $1 increase in the premium. Demand also responds to hospital and PCP networks, but to a relatively small degree. Along the take-up margin, a $1 increase in premium subsidy increases take-up by 1.4%. Chapter 2 uses a structural model of demand and supply to examine how two insurance market regulations--community rating and risk adjustment--affect prices and enrollment in the ACA exchange in California. Without risk adjustment, community rating in the ACA would lead to a significant reduction in enrollment in desirable plans and in take-up overall. Risk adjustment under the ACA roughly restores relative shares across plans to what they would be without community rating; however, the reduction in take-up is not restored. An alternative risk adjustment method can increase enrollment by 3.0% and would have little impact on government spending. Chapter 3, written jointly with Isaac Menashe and Wesley Yin, examines the impact of information on insurance take-up in the ACA. We exploit experimental variation in the information mailed to 87,000 households in California's exchange to study the role of frictions in insurance take-up. We find that a basic reminder of the enrollment deadline raised enrollment by 1.4 pp (or 16 percent). Compared to the reminder alone, also reporting personalized subsidy benefits increases take-up among low-income individuals, but decreases take-up among higher-income individuals. This is despite reminder-only recipients eventually observing their subsidies before purchase. Finally, the letter interventions induced healthier individuals into the market, lowering aggregate spending risk by 5.9 percent, suggesting these interventions can improve both enrollment and average market risk.


Essays on Information and Insurance Markets

Essays on Information and Insurance Markets

Author: Nathaniel Hendren

Publisher:

Published: 2012

Total Pages: 138

ISBN-13:

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This thesis studies the impact of private information on the existence of insurance markets. In the first chapter, I study the case of insurance rejections. Across a wide set of non-group insurance markets, applicants are rejected based on observable, often high-risk, characteristics. I explore private information as a potential cause by developing and testing a model in which agents have private information about their risk. I derive a new no-trade result that can theoretically explain how private information could cause rejections. I use the no-trade condition to generate measures of the barrier to trade private information imposes. I develop a new empirical methodology to estimate these measures that uses subjective probability elicitations as noisy measures of agents' beliefs. I apply the approach to three non-group markets: long-term care (LTC), disability, and life insurance. Consistent with the predictions of the theory, in all three settings I find significant evidence of private information for those who would be rejected; I find that they have more private information than those who can purchase insurance; and I find that it is enough to cause a complete absence of trade. This presents the first empirical evidence that private information leads to a complete absence of trade. In the second chapter, I show that private information explains the absence of a private unemployment insurance market. I provide the empirical evidence that a private UI market would be afflicted by private information and suggest the amount of private information is sufficient to explain a complete absence of trade. I present evidence a private market would still not arise even if the government stopped providing unemployment benefits. Finally, in the third chapter I use the empirical and theoretical tools developed in the first chapter to explore the impact of an adjusted community rating policy that would force insurance companies to only price based on age. My results suggest such a policy would completely unravel the LTC insurance market. Not only would welfare not be improved for those who are currently rejected, but the regulation would prevent the healthy from being able to purchase long-term care insurance.


Insurance, Risk Management, and Public Policy

Insurance, Risk Management, and Public Policy

Author: Sandra G. Gustavson

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 188

ISBN-13: 9401113785

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Five years ago the world lost one of its most prolific insurance scholars, Dr. Robert I. Mehr. His death in 1988 signalled the passing of not only a gifted writer and researcher, but also a pioneering teacher, mentor, and friend. The essays compiled within this volume are intended as an appropriate tribute to this occasionally outrageous individual who touched the lives of so many within the insurance community. Bob Mehr was a teacher who expected and demanded nothing less than perfect scholarship and flawless, efficient writing. Among alumni of the University of lllinois insurance doctoral program, stories still abound of late night and early morning sessions in which students and professor painstakingly debated precise words and phrases for dissertations, journal articles, and textbooks. Bob's respect for language was both immense and contagious, if at times more than a little compulsive. He joked that he could not read letters or novels without pencil in hand for editing. Bob's respect for his doctoral students was equally evident. The confidence he displayed in his students' abilities was sometimes startling, but "competence assumed" often begot "competence in fact." The accomplishments and records amassed by the many who studied with Bob Mehr are impressive and ongoing. On the dedication page in his final textbook, Fundamentals of Insurance, Bob spoke of his affection for those he called his "academic progeny" and wished them happiness as they build their own academic families.