Management Sciences and Quantitative Methods Commons^™

Communication Flows In Distribution Channels: Impact On Assessments Of Communication Quality And Satisfaction, Jakki J. Mohr, Ravipreet S. Sohi

Department of Marketing: Faculty Publications

We develop and test a model of the relationships between: (1) norms of information sharing and communication flows of frequency, bidirectionality, and formality, (2) these communication flows and dealers’ assessments of the quality of communication and satisfaction with communication; and (3) formality of communication flows and dealers’ distortion and withholding of information. Based on data collected with a survey mailed to a national sample of computer dealers, our findings offer insight on channels communication to both researchers and practitioners. By examining the impact of communication flows on summary judgments of communication, managers can focus their efforts on vital communication flows …

Discussion Of Leonard T. Guarini And Edward P. Lotkowski's "Model Year Rating For Automobile Liability And Injury Coverages", Cheng-Sheng Peter Wu

Journal of Actuarial Practice (1993–2006)

No abstract provided.

Discussion Of Ronald T. Kozlowski And Stuart B. Mathewson's "Measuring And Managing Catastrophe Risk", Rade T. Musulin

Journal of Actuarial Practice (1993–2006)

Mr. Kozlowski and Mr. Mathewson's paper provides a good introduction to the development and use of models in the property insurance industry. It will be a valuable addition to the regrettably sparse actuarialliterature in this area. This discussion will offer several comments on the ideas raised in the paper, focusing on how models can be used to enhance an actuary's work. The use of models has sparked major controversies between regulators and insurers in several jurisdictions, notably Florida. Controversy is not limited to the regulatory arena, however. Because models are being used by reinsurers to rate contracts and by A.M. …

Journal Of Actuarial Practice, Volume 3, No.2, 1995, Colin Ramsay , Editor

Journal of Actuarial Practice (1993–2006)

ARTICLES

Measuring and Managing Catastrophe Risk • Ronald T. Kozlowski and Stuart B. Mathewson

Discussion • Rade T. Musulin & Authors' Reply

Sensitivity Testing of Property/Casualty Cash Flows • Ralph S. Blanchard, III and Eduardo P. Marchen

A Pension Plan Incorporating Both Defined Benefit and Defined Contribution Principles • M. Zaki Khorasanee

Expected Loss Development in Workers' Compensation Pricing: A Shift in Credibility • Christopher J. Poteet

Editor - Colin Ramsay, University of Nebraska. Associate Editors: Robert Brown, University of Waterloo ○ Cecil Bykerk, Mutual of Omaha ○ Ruy Cardoso, Actuarial Frameworks ○ Samuel Cox, Georgia State University ○ David …

Discussion Of Leonard T. Guarini And Edward P. Lotkowski's "Model Year Rating For Automobile Liability And Injury Coverages", Mohammed Q. Ashab

Journal of Actuarial Practice (1993–2006)

No abstract provided.

Sensitivity Testing Of Prdperty/Casualty Cash Flows, Ralph S. Blanchard Iii, Eduardo P. Marchena

Journal of Actuarial Practice (1993–2006)

The paper outlines an approach that has evolved at Aetna through ten years of property/casualty insurance cash flow testing. Methodologies and approaches to setting parameters reflecting both default and call/prepayment risk are discussed for major invested asset categories. Modeling runoff cash flows for a base scenario (and, for some of these assets, shocked scenarios) also is examined for major non-invested asset categories. Loss reserve cash flow modeling is not addressed, except for a brief description of one approach to shocking projected flows. Finally, various alternatives are given for presenting cash flow testing results to management and non-actuarial audiences.

Surveillance Of Life Insurer Solvency: A Comparison Of Stock And The Multiple Scenario Cash Flow Financial Stress Tests, Ronald W. Spahr, Paul L. Gronewoller

Journal of Actuarial Practice (1993–2006)

The solvency of life insurance companies may be threatened by interest rate risk when the maturities of assets and liabilities are mismatched. The National Association of Insurance Commissioners' (NAIC) multiple scenario cashflow test (MSCFT) and the Office of Thrift Supervision (OTS) net portfolio value model (stock) approaches to financial stress tests are illustrated and analyzed with respect to their capacity to estimate the impact of potential changes in interest rates on life insurance company capital and surplus. Each approach is illustrated with the assets and liabilities of three hypothetical life insurance company capital levels (high, average, and below average) and …

Discussion Of Brian Jones' "Actuarial Conservatism: Not In Public Sector Defined Benefit Pension Plans", Richard Daskais

Journal of Actuarial Practice (1993–2006)

No abstract provided.

Life Insurer Risk-Based Capital: An Option Pricing Approach, Samuel H. Cox, Arthur M.B. Hogan

Journal of Actuarial Practice (1993–2006)

This paper uses an option pricing framework to estimate life insurer risk-based capital. Stock market data and statutory asset and liability data are used to calculate the implied level of statutory risk-based capital for each of 18 insurers. We calculate the level of risk-based capital required to avoid subsidy from the guaranty fund. Our results suggest that less capital is required than that required under the New York actuarial risk-based capital formula. Firm rankings, however, are similar under both methods, although the methods are not directly comparable. We also determine the level of capital required if the subsidy provided to …

Actuarial Conservatism: Not In Public Sector Defined Benefit Pension Plans, Brian A. Jones

Journal of Actuarial Practice (1993–2006)

Most actuaries tend to be conservative, and most, including this writer, probably would be happy to be so categorized. But actuarial conservatism may not be the best rule in defined benefit public sector pension plans. This paper argues that it is not appropriate for actuaries to employ conservatism assumptions in such public sector plans.

A Pension Plan Incorporating Both Defined Benefit And Defined Contribution Principles, Zaki M. Khorasanee

Journal of Actuarial Practice (1993–2006)

We propose a defined contribution pension plan with an explicitly defined benefit formula. Such a plan is expected to pay more stable and predictable benefits over time than one based on the money purchase principle. The properties of the plan are investigated through simulation. Methods for distributing surpluses and eliminating deficiencies that involve adjusting the rate of benefit accrual (rather than varying the rate of contribution) are discussed. The behavior of the plan under a scenario of persistently unfavorable investment experience is Simulated, and methods for satisfactorily dealing with such a scenario are considered. The plan actuary is expected to …

Measuring And Managing Catastrophe Risk, Ronald T. Kozlowski, Stuart B. Mathewson

Journal of Actuarial Practice (1993–2006)

We introduce some of the basic principles behind property catastrophe modeling via simulations. The output of such simulations can be explored via modernized pin maps and loss likelihood curves. We also briefly discuss some of the uses of catastrophe modeling in addition to traditional probable maximum loss estimation. Comments are made on the use of modeling by reinsurers. We hope that this article stimulates discussions on new approaches to catastrophe modeling.

Simulation Of Investment Returns For A Money Purchase Fund, Zaki M. Khorasanee

Journal of Actuarial Practice (1993–2006)

This paper examines the problem of investment risk in money purchase pension plans. The disadvantages of modeling equity returns as independent, identically distributed random variables are conSidered, and a modified stochastic model of equity returns is proposed. This modified stochastic model is used to estimate the variability in a plan member's retirement fund and to compare various alternatives to investing 100 percent of the assets in ordinary shares. Varying conclusions are drawn about the likely success of these alternative investment strategies in reducing investment risk.

Recent Canadian Human Rights Decisions Having An Impact On Gender-Based Risk Classification Systems, Robert L. Brown

Journal of Actuarial Practice (1993–2006)

With the passage of the Canadian Charter of Rights and Freedoms on April 17, 1982, all previous court precedents using gender in risk classification systems became obsolete. Three cases involving issues of discrimination in the use of age and gender now clarify the position of the Canadian judiciary. Based on the decisions in these three cases, this paper presents arguments that can be used in any jurisdiction to defend successfully the use of gender in a property /casualty risk classification system.

Discussion Of Robert L. Brown's "Recent Canadian Human Rights Decisions Having An Impact On Gender-Based Risk Classification Systems", Patrick Butler

Journal of Actuarial Practice (1993–2006)

This commentary examines the political and economic influence of demographic groups on rationales for granting exemption from laws prohibiting classification by age or sex, as evidenced in the cases discussed by Robert L. Brown. Age is less subject than sex to manipulation for group advantage. In Professor Brown's discussion of auto insurance cases, only the influence of group dominance can explain:

• Selective focus on young drivers;

• Indifference to ongoing overcharging of adult women signaled by undisputed 2:1 ratios of cost-related averages; and

• Avoidance of effective ways to evaluate miles of exposure to risk.

Contrary to Professor Brown's …

Obtaining A Life Table For Spinal Cord Injury Patients Using Information Theory, Patrick L. Brockett, Yun Song

Journal of Actuarial Practice (1993–2006)

We present a mortality table adjustment method based on a constrained information theoretic methodology. The objective is to adjust a standard mortality table to reflect a particular known characteristic of the population while remaining as close as possible to a given standard table. To illustrate these techniques, the medical results concerning survival of spinal cord injury patients are incorporated into a standard table to obtain a mortality table pertinent for paraplegic and quadriplegic individuals. The desired adjusted mortality table can be used by actuaries for special purposes such as wrongful injury damage award compensation calculations and determining life insurance premium …

Expected Loss Development In Workers' Compensation Pricing: A Shift In Credibility, Christopher J. Poteet

Journal of Actuarial Practice (1993–2006)

This paper shows that expected loss development is equivalent to adjusting the full credibility standard and applying credibility by policy period. Expected loss development should not be used in workers' compensation ratemaking. The credibility is correct before being adjusted.

Journal Of Actuarial Practice, Volume 3, No.1, 1995, Colin Ramsay , Editor

Journal of Actuarial Practice (1993–2006)

ARTICLES

Life Insurer Risk-Based Capital: An Option Pricing Approach • Samuel H. Cox and Arthur M.s. Hogan

Surveillance of Life Insurer Solvency: A Comparison of Stock and The Multiple Scenario Cash Flow Financial Stress Tests • Ronald W. Spahr and Paul L. Gronewolier

HIV, AIDS, Markov Processes, and Health and Disability Insurance • Steven Haberman

Obtaining a Life Table for Spinal Cord Injury Patients Using Information Theory • Patrick L. Brockett and Yun Song

Simulation of Investment Returns for a Money Purchase Fund • M. Zaki Khorasanee

Decision Making Under Conflicting Criteria In Pension Valuations: An Expected Utility Model • …

Relationship-Based Approach To Leadership: Development Of Leader-Member Exchange (Lmx) Theory Of Leadership Over 25 Years: Applying A Multi-Level Multi-Domain Perspective, George B. Graen, Mary Uhl-Bien

Department of Management: Faculty Publications

Research into Leader-Member Exchange (LMX) theory has been gaining momentum in recent years, with a multitude of studies investigating many aspects of LMX in organizations. Theoretical development in this area also has undergone many refinements, and the current theory is far different from the early Vertical Dyad Linkage (VDL) work. This article uses a levels perspective to trace the development of LMX through four evolutionary stages of theorizing and investigation up to the present. The article also uses a domains perspective to develop a new taxonomy of approaches to leadership, and LMX is discussed within this taxonomy as a relationship-based …

Cross-Tested Defined Contribution Plans, Ho Kuen Ng

Journal of Actuarial Practice (1993–2006)

Cross-tested plans are defined contribution plans that test allocations for nondiscrimination. The test is based on a plan's actuarial equivalent annuity benefits. Cross-tested plans have become popular among small plan sponsors after the release of the nondiscrimination regulations. This paper investigates the pros and cons of cross-testing.

Decision Making Under Conflicting Criteria In Pension Valuations: An Expected Utility Model, Lisa Lipowski Posey, Arnold F. Shapiro

Journal of Actuarial Practice (1993–2006)

Many of the criteria used by actuaries when selecting assumptions for pension plan valuations often conflict. As a result, actuaries must weigh the various costs and benefits associated with a particular set of assumptions. We use expected utility theory to model the process of chOOSing actuarial assumptions when faced with potentially conflicting criteria. The three criteria considered are prudence, best estimate, and conservatism. The actual contribution chosen by the actuary is found to depend on the contribution level that triggers a red flag with respect to tax deductibility. If this level is relatively low, the actuary chooses a high contribution …

Hiv, Aids, Markov Processes, And Health And Disability Insurance, Steven Haberman

Journal of Actuarial Practice (1993–2006)

This paper presents a Markov model of the transmission and development of HIV and AIDS. The Markov model is used to derive functions needed in the calculation of disability insurance premiums, reserves, and cash flows. An application to health insurance and disability insurance is provided.

Model Year Rating For Automobile Liability And Injury Coverages, Leonard T. Guarini, Edward P. Lotkowski

Journal of Actuarial Practice (1993–2006)

This paper is intended to stimulate further research and discussion on the validity and utility of model year rating for personal automobile coverages other than physical damage. Using data from a single insurer and some elementary statistical techniques, we provide evidence supporting model year as a classification variable for automobile liability and injury coverages.

Managing The Costs And Risks Of Housing Finance: A New Role For Actuaries, Anthony Asher

Journal of Actuarial Practice (1993–2006)

Housing finance is a nontraditional field where actuarial expertise could be applied fruitfully. The development of mortgage instruments requires the application of financial mathematics, while the evaluation and management of the financial risks to which borrowers and lenders are exposed require a knowledge of insurance principles. This paper splits the financial costs of home ownership into several components: those that arise from inflation, risk, administration, and the residual real interest charge. The risk component further is partitioned into life contingencies, economic contingencies, and various moral hazards. This analysis provides a basis for future financial innovation, highlights where government intervention may …

Health Insurance Reform And Its Effects On The Small Employer Market: A Review Of H.R. 3626, Anthony P. Hammond

Journal of Actuarial Practice (1993–2006)

This paper provides a detailed analysis of H.R. 3626, a bill that is intended to improve employers' and employees' access to health care. H.R. 3626 attempts to accomplish this through the use of guaranteed availability, community rating, and generous standard benefits. A migration model is used to analyze the impact of H.R. 3626. Using this model, it is shown that while improving the availability and affordability of health insurance, its rating restrictions increase premiums disproportionately for the majority of small employers. In addition, H.R. 3626 increases the number of uninsured small employers.

Modal Premium Factors In Ordinary Life Insurance, James B. Ross, Criss G. Woodruff

Journal of Actuarial Practice (1993–2006)

For ordinary life policyholders who want to pay more frequently than annually, insurers construct schedules of modal premium factors that reflect additional charges for the costs of collection, forgone interest, and premiums uncollected or refunded in the year of death. Competition within the industry forces convergence of such schedules. On the other hand, if such factors for a given company reflect its own experience (in expense, interest, mortality, and persistency), the differences between companies will force schedules apart. Analysis of a large group of life insurers over the 1972-1982-1992 period shows that modal premium factors are dustered closely, that they …

Predicting Automobile Insurance Multi-Regional Base Pure Premiums, Edward Nissan, Iskandar S. Hamwi

Journal of Actuarial Practice (1993–2006)

Multi-regional insurance base premiums are customarily computed by a top-down method where national or state projections are adjusted to reflect regional differences. This paper proposes a methodology for a bottom-up projection. A weighing scheme that minimizes the variance of the estimator is suggested as a criterion to establish an overall multi-regional rate.

Modeling Insurance Cash Flows For Universal Life Policies, Robert E. Hoyt

Journal of Actuarial Practice (1993–2006)

This paper develops a methodology that can be used by insurers to construct predictive models for their own insurance cash flows. The insurance cash flow components evaluated include premium flows, policy loans, and cash value surrenders. Also, the paper evaluates several hypotheses in the insurance literature that attempt to explain insurance cash flows. Though the results are theoretically consistent, they produce some interesting contrasts to findings of similar studies for whole life policies. For example, these results confirm that: (i) the credited rate strategy is important to policy performance; (ii) the emergency fund hypothesis appears to apply to policy loan …

A Statistical Approach To Ibnr Reserves, Bradford S. Gile

Journal of Actuarial Practice (1993–2006)

This paper develops a three dimensional statistical approach to the estimation of the mean and the standard deviation of pure incurred but not reported (IBNR) reserves. This means that the time of occurrence, the reporting lag, and the claim severity are separately modeled. It is assumed that, beyond any fixed time t, the claim number development process is Poisson and that the severity of loss depends on the length of the reporting lag. Two key assumptions are made to simplify the estimation of model parameters: for a given reporting lag, (i) the conditional mean of the claim size is a …

Discussion Of Robert L. Brown's "Tax Assistance To Qualified Retirement Savings Plans: Deferral Or Waiver"*, Mark W. Campbell

Journal of Actuarial Practice (1993–2006)

In the paper entitled "Tax Assistance to Qualified Retirement Savings Plans: Deferral or Waiver," Robert L. Brown concludes that "the nontaxation of investment income on qualified funds until taken is a tax waiver or tax subsidy from the government to participants of qualified plans". I believe, however, that this conclusion is based on flawed assumptions pertaining to:

• The behavioral responses of taxpayers to the withdrawal of such tax assistance;

• The definition of an appropriate benchmark tax system against which to measure the cost of such tax assistance; and

• The appropriate basis of comparison of alternative government tax …