Author: Carsten Sørensen
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
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Book Description
The paper provides the solution to a dynamic portfolio problem of an investor who faces borrowing and short sales constraints in a setting with stochastic interest rates. The multi-asset dynamic problem is reduced to a constrained quadratic optimization problem which is similar to the well-known problem studied in static mean-variance portfolio theory. As an example and illustration of the general results, the paper focuses on the closed-form portfolio solution of a borrowing constrained long-term investor who cannot perfectly replicate very long-term real bonds and instead uses other securities (e.g. stocks) to hedge real interest risk. The efficiency loss due to, e.g., such a borrowing constraint is addressed.
Author: A. Berkelaar
Publisher: Springer
ISBN: 0230251293
Category : Political Science
Languages : en
Pages : 401
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Book Description
This edited volume contains essential readings for financial analysts and market practitioners working at Central Banks and Sovereign Wealth Funds. It presents the reader with state-of-the-art methods that are directly implementable, and industry 'best-practices' as followed by leading institutions in their field.
Author: John Y. Campbell
Publisher: Clarendon Lectures in Economic
ISBN: 9780198296942
Category : Asset allocation
Languages : en
Pages : 280
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Book Description
This volume provides a scientific foundation for the advice offered by financial planners to long-term investors. Based upon statistics on asset return behavior and assumed investor objectives, the authors derive optimal portfolio rules that investors can compare with existing rules of thumb.
Author: Ralph S. J. Koijen
Publisher:
ISBN:
Category :
Languages : en
Pages : 34
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Book Description
We study a dynamic asset allocation problem in which stock returns exhibit short-run momentum and long-run mean reversion. We develop a tractable continuous-time model that captures these two predictability features and derive the optimal investment strategy in closed-form. The model predicts negative hedging demands for medium-term investors, and an allocation to stocks that is non-monotonic in the investor's horizon. Momentum substantially increases the economic value of hedging time-variation in investment opportunities. These utility gains are preserved when we impose realistic borrowing and short-sales constraints and allow the investor to trade on a monthly frequency.
Author: John Y. Campbell
Publisher: OUP Oxford
ISBN: 019160691X
Category : Business & Economics
Languages : en
Pages : 272
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Book Description
Academic finance has had a remarkable impact on many financial services. Yet long-term investors have received curiously little guidance from academic financial economists. Mean-variance analysis, developed almost fifty years ago, has provided a basic paradigm for portfolio choice. This approach usefully emphasizes the ability of diversification to reduce risk, but it ignores several critically important factors. Most notably, the analysis is static; it assumes that investors care only about risks to wealth one period ahead. However, many investors—-both individuals and institutions such as charitable foundations or universities—-seek to finance a stream of consumption over a long lifetime. In addition, mean-variance analysis treats financial wealth in isolation from income. Long-term investors typically receive a stream of income and use it, along with financial wealth, to support their consumption. At the theoretical level, it is well understood that the solution to a long-term portfolio choice problem can be very different from the solution to a short-term problem. Long-term investors care about intertemporal shocks to investment opportunities and labor income as well as shocks to wealth itself, and they may use financial assets to hedge their intertemporal risks. This should be important in practice because there is a great deal of empirical evidence that investment opportunities—-both interest rates and risk premia on bonds and stocks—-vary through time. Yet this insight has had little influence on investment practice because it is hard to solve for optimal portfolios in intertemporal models. This book seeks to develop the intertemporal approach into an empirical paradigm that can compete with the standard mean-variance analysis. The book shows that long-term inflation-indexed bonds are the riskless asset for long-term investors, it explains the conditions under which stocks are safer assets for long-term than for short-term investors, and it shows how labor income influences portfolio choice. These results shed new light on the rules of thumb used by financial planners. The book explains recent advances in both analytical and numerical methods, and shows how they can be used to understand the portfolio choice problems of long-term investors.
Author: Xuezhong He
Publisher:
ISBN:
Category :
Languages : en
Pages : 51
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Book Description
To capture the well documented time series momentum and reversal in asset price, we develop a continuous-time asset price model, derive the optimal investment strategy theoretically, and test the strategy empirically. We show that, by combining market fundamentals and timing opportunity with respect to market trend and volatility, the optimal strategy based on time series momentum of moving averages over short-time horizons and reversal significantly outperforms, both in-sample and out-of-sample, the S&P500 and pure strategies based on either time series momentum or reversal only. The results are robust for different time horizons, short-sale constraints, market states, investor sentiment, and market volatility.
Author: Rudi Zagst
Publisher: Springer Science & Business Media
ISBN: 3662121069
Category : Business & Economics
Languages : en
Pages : 349
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Book Description
This book combines a rigorous overview of the mathematics of financial markets with an insight into the practical application of these models to the risk and portfolio management of interest-rate derivatives. It can also serve as a valuable textbook on financial markets for graduate and PhD students in mathematics. Interesting and comprehensive case studies illustrate the theoretical concepts.
Author: Vineer Bhansali
Publisher: CFA Institute Research Foundation
ISBN: 1952927196
Category : Business & Economics
Languages : en
Pages : 107
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Book Description
In recorded financial history, there are almost no occasions, other than the present, where a significant portion of the global bond markets has been trading at negative nominal yields. Is this an anomaly or what will be the normal state of the financial markets in years to come? This monograph investigates the ongoing debate between the pros and cons of negative nominal yields and the economic rationale(s) that are used to justify or criticize underlying policies. Even in academic circles, few agree on the costs and benefits of negative yields. Surveying the global bond markets of the day, I find the impact of negative yields in almost all regions and sectors, though sovereign bond markets, which are closest to monetary policy, are the dominant category of bonds with negative yields. I next look at the participants in the negatively yielding bond market and at the motivations that justify their actions. The conclusion is that although different participants might have different reasons to buy negatively yielding bonds, their collective action is certainly responsible for creating a local equilibrium in which these markets clear. Central bank policy is the next focus in this monograph, and I discuss in depth the economic rationale as propounded by one such bank, the European Central Bank. I conclude with a discussion of the blurring lines between monetary and fiscal policy, which are likely to become centerpieces in future years as global sovereign debt levels rise. Next, I look at the influence of negative yields on other asset markets, such as equities, and especially derivatives markets, such as the demand for options. A discussion of potential risks then follows. The monograph concludes with a review of the impact of negative yields on nonfinancial aspects of society. Although the forecast is anything but crystal clear, the evolution of markets and economics in the years to come will undoubtedly be influenced by this massive economic experiment of negative yields.
Author: William Kinlaw
Publisher: John Wiley & Sons
ISBN: 111940245X
Category : Business & Economics
Languages : en
Pages : 271
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Book Description
Since the formalization of asset allocation in 1952 with the publication of Portfolio Selection by Harry Markowitz, there have been great strides made to enhance the application of this groundbreaking theory. However, progress has been uneven. It has been punctuated with instances of misleading research, which has contributed to the stubborn persistence of certain fallacies about asset allocation. A Practitioner's Guide to Asset Allocation fills a void in the literature by offering a hands-on resource that describes the many important innovations that address key challenges to asset allocation and dispels common fallacies about asset allocation. The authors cover the fundamentals of asset allocation, including a discussion of the attributes that qualify a group of securities as an asset class and a detailed description of the conventional application of mean-variance analysis to asset allocation.. The authors review a number of common fallacies about asset allocation and dispel these misconceptions with logic or hard evidence. The fallacies debunked include such notions as: asset allocation determines more than 90% of investment performance; time diversifies risk; optimization is hypersensitive to estimation error; factors provide greater diversification than assets and are more effective at reducing noise; and that equally weighted portfolios perform more reliably out of sample than optimized portfolios. A Practitioner's Guide to Asset Allocation also explores the innovations that address key challenges to asset allocation and presents an alternative optimization procedure to address the idea that some investors have complex preferences and returns may not be elliptically distributed. Among the challenges highlighted, the authors explain how to overcome inefficiencies that result from constraints by expanding the optimization objective function to incorporate absolute and relative goals simultaneously. The text also explores the challenge of currency risk, describes how to use shadow assets and liabilities to unify liquidity with expected return and risk, and shows how to evaluate alternative asset mixes by assessing exposure to loss throughout the investment horizon based on regime-dependent risk. This practical text contains an illustrative example of asset allocation which is used to demonstrate the impact of the innovations described throughout the book. In addition, the book includes supplemental material that summarizes the key takeaways and includes information on relevant statistical and theoretical concepts, as well as a comprehensive glossary of terms.
Author: Leonard C Maclean
Publisher: World Scientific
ISBN: 981441736X
Category : Business & Economics
Languages : en
Pages : 941
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Book Description
This handbook in two parts covers key topics of the theory of financial decision making. Some of the papers discuss real applications or case studies as well. There are a number of new papers that have never been published before especially in Part II.Part I is concerned with Decision Making Under Uncertainty. This includes subsections on Arbitrage, Utility Theory, Risk Aversion and Static Portfolio Theory, and Stochastic Dominance. Part II is concerned with Dynamic Modeling that is the transition for static decision making to multiperiod decision making. The analysis starts with Risk Measures and then discusses Dynamic Portfolio Theory, Tactical Asset Allocation and Asset-Liability Management Using Utility and Goal Based Consumption-Investment Decision Models.A comprehensive set of problems both computational and review and mind expanding with many unsolved problems are in an accompanying problems book. The handbook plus the book of problems form a very strong set of materials for PhD and Masters courses both as the main or as supplementary text in finance theory, financial decision making and portfolio theory. For researchers, it is a valuable resource being an up to date treatment of topics in the classic books on these topics by Johnathan Ingersoll in 1988, and William Ziemba and Raymond Vickson in 1975 (updated 2nd edition published in 2006).
