scholarly journals Portfolio Choice with Internal Habit Formation: A Life-Cycle Model with Uninsurable Labor Income Risk

2002 ◽  
Author(s):  
Francisco J. Gomes ◽  
Alexander Michaelides
Keyword(s):  
Life Cycle ◽  
Portfolio Choice ◽  
Habit Formation ◽  
Labor Income ◽  
Life Cycle Model ◽  
Cycle Model ◽  
Income Risk ◽  
Labor Income Risk

scholarly journals Learning Your Earning: Are Labor Income Shocks Really Very Persistent?

2007 ◽  
Vol 97 (3) ◽  
pp. 687-712 ◽  
Author(s):  
Fatih Guvenen
Keyword(s):  
Life Cycle ◽  
Current Literature ◽  
Previous Literature ◽  
Labor Income ◽  
Income Shocks ◽  
Life Cycle Model ◽  
Cycle Model ◽  
Consumption Data ◽  
Hip Process

The current literature offers two views on the nature of the labor income process. According to the first view, individuals are subject to very persistent income shocks while facing similar life-cycle income profiles (the RIP process, Thomas MaCurdy 1982). According to the alternative, individuals are subject to shocks with modest persistence while facing individual-specific profiles (the HIP process, Lee A. Lillard and Yoram A. Weiss 1979). In this paper we study the restrictions imposed by these two processes on consumption data—in the context of a life-cycle model—to distinguish between the two views. We find that the life-cycle model with a HIP process, which has not been studied in the previous literature, is consistent with several features of consumption data, whereas the model with a RIP process is consistent with some, but not with others. We conclude that the HIP model could be a credible contender to—and along some dimensions, a more coherent alternative than—the RIP model. (JEL D83, D91, E21, J31)

LIFE INSURANCE AND PENSION CONTRACTS II: THE LIFE CYCLE MODEL WITH RECURSIVE UTILITY

2015 ◽  
Vol 46 (1) ◽  
pp. 71-102 ◽  
Author(s):  
Knut K. Aase
Keyword(s):  
Life Cycle ◽  
Portfolio Choice ◽  
Life Insurance ◽  
Insurance Industry ◽  
Life Time ◽  
Recursive Utility ◽  
Life Cycle Model ◽  
Cycle Model ◽  
Pension Insurance ◽  
The Relationship

AbstractWe analyze optimal consumption and pension insurance during the life time of a consumer using the life cycle model, when the consumer has recursive utility. The relationship between substitution of consumption and risk aversion is highlighted, and clarified by the introduction of this type of preferences. We illustrate how recursive utility can be used to explain the empirical consumption puzzle for aggregates. This indicates a plausible choice for the parameters of the utility function, relevant for the consumer in the life cycle model. Optimal life insurance is considered, as well as the portfolio choice problem related to optimal exposures in risky securities. A major finding is that it is optimal for the typical insurance buyer to smooth adverse shocks to the financial market, unlike what is implied by the conventional model. This has implications for what type of contracts the life and pension insurance industry should offer.

scholarly journals LIFE INSURANCE AND PENSION CONTRACTS I: THE TIME ADDITIVE LIFE CYCLE MODEL

2014 ◽  
Vol 45 (1) ◽  
pp. 1-47 ◽  
Author(s):  
Knut K. Aase
Keyword(s):  
Life Cycle ◽  
Portfolio Choice ◽  
Life Insurance ◽  
Insurance Industry ◽  
Pension Plans ◽  
Life Cycle Model ◽  
Cycle Model ◽  
Pension Insurance ◽  
Insurance Contracts ◽  
State Dependent

AbstractWe analyze optimal consumption in the life cycle model by introducing life and pension insurance contracts. The model contains a credit market with biometric risk, and market risk via risky securities. This idealized framework enables us to clarify important aspects of life insurance and pension contracts. We find optimal pension plans and life insurance contracts where the benefits are state dependent. We compare these solutions both to the ones of standard actuarial theory, and to policies offered in practice. Implications of this include what role the insurance industry may play to improve welfare. The relationship between substitution of consumption and risk aversion is highlighted in the presence of a consumption puzzle. One problem related portfolio choice is discussed the horizon problem. Finally, we present some comments on longevity risk and cohort risk.

ACCOUNTING FOR LIFE-CYCLE WEALTH ACCUMULATION: THE ROLE OF HOUSING INSTITUTION

2011 ◽  
Vol 16 (4) ◽  
pp. 493-517 ◽  
Author(s):  
Sang-Wook (Stanley) Cho
Keyword(s):  
Life Cycle ◽  
The United States ◽  
Mortgage Market ◽  
Wealth Accumulation ◽  
Labor Income ◽  
Life Cycle Model ◽  
Cycle Model ◽  
Policy Experiments ◽  
Cross Country

This paper constructs a quantitative general equilibrium life-cycle model with uninsurable labor income to account for the differences in wealth accumulation and homeownership between Korea and the United States. The model incorporates different structures in the housing market in the two countries, namely, the mortgage market and the rental arrangements. The results from the calibrated model quantitatively explain some empirical findings in the aggregate and life-cycle profiles of wealth and homeownership. Quantitative policy experiments show that the mortgage market alone can account for more than 40% of the differences in the aggregate homeownership ratios. When coupled with the rental arrangements, both institutions can account for approximately 52% of the differences in the cross-country homeownership ratios.

Family planning in a life‐cycle model with income risk

2020 ◽  
Vol 35 (5) ◽  
pp. 567-586 ◽  
Author(s):  
Mette Ejrnæs ◽  
Thomas H. Jørgensen
Keyword(s):  
Life Cycle ◽  
Family Planning ◽  
Life Cycle Model ◽  
Cycle Model ◽  
Income Risk
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