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Author: Claudio Campanale
Publisher:
ISBN:
Category :
Languages : en
Pages : 55
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Book Description
In the present paper I develop a life-cycle portfolio choice model where agents perceive stock returns to be ambiguous and are ambiguity averse. As in Epstein and Schneider (2005) part of the ambiguity vanishes over time as a consequence of learning over observed returns. The model shows that ambiguity alone can rationalize moderate stock market participation rates and conditional shares with reasonable participation costs but has strongly counterfactual implications for conditional allocations to stocks by age and wealth. When learning is allowed, conditional shares over the life-cycle are instead aligned with the empirical evidence and patterns of stock holdings over the wealth distribution get closer to the data.
Author: Claudio Campanale
Publisher:
ISBN:
Category :
Languages : en
Pages : 55
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Book Description
In the present paper I develop a life-cycle portfolio choice model where agents perceive stock returns to be ambiguous and are ambiguity averse. As in Epstein and Schneider (2005) part of the ambiguity vanishes over time as a consequence of learning over observed returns. The model shows that ambiguity alone can rationalize moderate stock market participation rates and conditional shares with reasonable participation costs but has strongly counterfactual implications for conditional allocations to stocks by age and wealth. When learning is allowed, conditional shares over the life-cycle are instead aligned with the empirical evidence and patterns of stock holdings over the wealth distribution get closer to the data.
Author: Kim Peijnenburg
Publisher:
ISBN:
Category :
Languages : en
Pages : 56
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Book Description
Ambiguity and learning about the equity premium can simultaneously explain the low fraction of financial wealth allocated to stocks over the life cycle and the stock market participation puzzle. Individuals are ambiguous about the size of the equity premium and are averse to this ambiguity, resulting in lower stock allocations over the life cycle consistent with the data. As agents get older, they learn about the equity premium and increase their allocation to stocks. Furthermore, I find that ambiguity leads to underdiversification, home bias, lower Sharpe ratios, and higher savings. Similar results cannot be obtained by assuming higher risk aversion.
Author: Victor Duarte
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
We develop a machine-learning solution algorithm to solve for optimal portfolio choice in a detailed and quantitatively-accurate lifecycle model that includes many features of reality modelled only separately in previous work. We use the quantitative model to evaluate the consumption-equivalent welfare losses from using simple rules for portfolio allocation across stocks, bonds, and liquid accounts instead of the optimal portfolio choices. We find that the consumption-equivalent losses from using an age-dependent rule as embedded in current target-date/lifecycle funds (TDFs) are substantial, around 2 to 3 percent of consumption, despite the fact that TDF rules mimic average optimal behavior by age closely until shortly before retirement. Our model recommends higher average equity shares in the second half of life than the portfolio of the typical TDF, so that the typical TDF portfolio does not improve on investing an age-independent 2/3 share in equity. Finally, optimal equity shares have substantial heterogeneity, particularly by wealth level, state of the business cycle, and dividend-price ratio, implying substantial gains to further customization of advice or TDFs in these dimensions.
Author: Francisco J. Gomes
Publisher:
ISBN:
Category : Asset allocation
Languages : en
Pages : 64
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Book Description
Author: Yoel Lax
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
A life cycle model in which an investor (a) faces i.i.d. asset returns, (b) receives no non-asset income, and (c) has an iso-elastic period utility function, predicts that the investor will allocate a constant fraction of his wealth to risky securities over his lifetime. This result is at odds with both economic intuition and the empirical evidence on asset allocation of individuals. In this work we investigate the effect that habit formation has on life cycle portfolio allocation. This amounts to relaxing assumption (c) by making period utility dependent on past consumption. We derive the optimal consumption and investment policies for a finitely-lived investor in discrete time and find that habit formation can explain increasingly conservative as well as hump-shaped investment patterns over the life cycle, both of which have been documented empirically. The crucial element determining which pattern obtains is the initial habit of a young investor. Furthermore we find that habit formation induces much stronger life cycle effects than those obtained by relaxing either assumptions (a) or (b): Return predictability is of negligible importance in a habit formation model, and labor income alone cannot generate hump-shaped investment patterns. Next we show that our basic results are robust to whether habit formation is introduced into the utility function as a difference or ratio, and to whether the habit stock consists of only one lag or a distributed lag of consumption. In contrast, the endogeneity of habit is crucial to our results--a model with a constant subsistence level, which is nested in our more general model, cannot produce the same life cycle investment patterns. Finally, we show that a continuous-time version of our habit model yields qualitatively different results.
Author: Gilles Hilary
Publisher: Edward Elgar Publishing
ISBN: 1802204172
Category : Business & Economics
Languages : en
Pages : 463
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Book Description
This accessible Handbook provides an essential entry point for those with an interest in the increasingly complex subject of financial decision making. It sheds light on new paradigms in society and the ways that new tools from private actors have affected financial decision making. Covering a broad range of key topics in the area, leading researchers summarize the state-of-the-art in their respective areas of expertise, delineating their projections for the future.
Author: Revansiddha Basavaraj Khanapure
Publisher:
ISBN: 9781124868318
Category :
Languages : en
Pages : 107
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Book Description
I solve the life-cycle portfolio allocation problem of a disappointment averse (DA) agent with labor income risk. DA preferences overweight disappointing outcomes and are consistent with behavior highlighted by the Allais paradox. I show that unlike constant relative risk aversion (CRRA) investors, DA investors drastically cut their allocation to stocks when they retire. This result is consistent with empirical evidence on portfolio shares and with the allocation rules of target-date retirement funds. I also show that sufficiently disappointment averse agents abstain from stocks after retirement, which is consistent with the observed low rates of stock market participation among retirees. I further show that when crashes are possible, agents with low levels of wealth invest little (or nothing) in the stock market.
Author: Francisco Gomes
Publisher:
ISBN:
Category :
Languages : en
Pages : 50
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Book Description
We show that a life-cycle model with realistically calibrated uninsurable labor income risk and moderate risk aversion can simultaneously match stock market participation rates and asset allocation decisions conditional on participation. The key ingredients of the model are Epstein-Zin preferences, two risky assets (stocks and long-term bonds), and a fixed entry cost associated with the investment in risky assets. In this context, moderate preference heterogeneity in risk aversion and in the elasticity of intertemporal substitution is sufficient to deliver our results. Moreover, the model rationalizes the asset allocation puzzle of Canner, Mankiw and Weil (1997).
Author: Francisco Gomes
Publisher:
ISBN:
Category :
Languages : en
Pages : 52
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Book Description
Motivated by the success of internal habit formation preferences in explaining asset pricing puzzles, we introduce these preferences in a life-cycle model of consumption and portfolio choice with liquidity constraints, undiversifiable labor income risk and stock-market participation costs. In contrast to the initial motivation, we find that the model is not able to simultaneously match two very important stylized facts: A low stock market participation rate, and moderate equity holdings for those households that do invest in stocks. Habit formation increases wealth accumulation because the intertemporal consumption smoothing motive is stronger. As a result, households start participating in the stock market very early in life, and invest their portfolios almost fully in stocks. Therefore, we conclude that, with respect to its ability to match the empirical evidence on asset allocation behavior, the internal habit formation model is dominated by its time-separable utility counterpart.
Author: Andrew Ang
Publisher: Oxford University Press
ISBN: 019938231X
Category : Business & Economics
Languages : en
Pages : 717
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Book Description
In Asset Management: A Systematic Approach to Factor Investing, Professor Andrew Ang presents a comprehensive, new approach to the age-old problem of where to put your money. Years of experience as a finance professor and a consultant have led him to see that what matters aren't asset class labels, but instead the bundles of overlapping risks they represent. Factor risks must be the focus of our attention if we are to weather market turmoil and receive the rewards that come with doing so. Clearly written yet full of the latest research and data, Asset Management is indispensable reading for trustees, professional money managers, smart private investors, and business students who want to understand the economics behind factor risk premiums, to harvest them efficiently in their portfolios, and to embark on the search for true alpha.
