Download or read book Optimal Portfolios with Stochastic Interest Rates and Defaultable Assets written by Holger Kraft and published by Springer Science & Business Media. This book was released on 2012-08-27 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis summarizes most of my recent research in the field of portfolio optimization. The main topics which I have addressed are portfolio problems with stochastic interest rates and portfolio problems with defaultable assets. The starting point for my research was the paper "A stochastic control ap proach to portfolio problems with stochastic interest rates" (jointly with Ralf Korn), in which we solved portfolio problems given a Vasicek term structure of the short rate. Having considered the Vasicek model, it was obvious that I should analyze portfolio problems where the interest rate dynamics are gov erned by other common short rate models. The relevant results are presented in Chapter 2. The second main issue concerns portfolio problems with default able assets modeled in a firm value framework. Since the assets of a firm then correspond to contingent claims on firm value, I searched for a way to easily deal with such claims in portfolio problems. For this reason, I developed the elasticity approach to portfolio optimization which is presented in Chapter 3. However, this way of tackling portfolio problems is not restricted to portfolio problems with default able assets only, but it provides a general framework allowing for a compact formulation of portfolio problems even if interest rates are stochastic.
Download or read book Optimal Portfolios written by Ralf Korn and published by World Scientific. This book was released on 1997 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of the book is the construction of optimal investment strategies in a security market model where the prices follow diffusion processes. It begins by presenting the complete Black-Scholes type model and then moves on to incomplete models and models including constraints and transaction costs. The models and methods presented will include the stochastic control method of Merton, the martingale method of Cox-Huang and Karatzas et al., the log optimal method of Cover and Jamshidian, the value-preserving model of Hellwig etc.
Download or read book More on Optimal Portfolio Choice Under Stochastic Interest Rates written by Abraham Lioui and published by . This book was released on 1998 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optimal Portfolios with Stochastic Short Rate written by Holger Kraft and published by . This book was released on 2005 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this paper is to highlight some of the problems occuring when one leaves the usual path of portfolio problems with Gaussian interest rates and bounded market price of risk. We solve several portfolio problems for different specifications of the short rate and the market price of risk. More precisely, we consider a Gaussian model, the Cox-Ingersoll-Ross model, and squared Gaussian as well as lognormal specifications of the short rate. Even for the seemingly innocent Gaussian model, the problem may explode in a certain sense if the market price of risk is unbounded. From an economic point of view, in this case the model does not exhibit a partial equilibrium indicating that, for instants, the time-preferences of the investor are not properly modeled. This problem can be overcome by introducing short rate depending time preferences. Above all, we strongly emphasize that it is not straightforward to generalize the existing results on continuous-time portfolio optimization to the case of a Non-Gaussian stochastic short rate or to a Gaussian term structure with unbounded market price of risk.
Download or read book On Optimal Portfolio Choice Under Stochastic Interest Rates written by Abraham Lioui and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In an economy where interest rates and stock price changes follow fairly general stochastic processes, we analyse the portfolio problem of an expected utility investor. When the investment opportunity set is driven by an arbitrary number of state variables, the optimal portfolio strategy is known to contain a speculative element and Merton-Breeden hedging terms against the fluctuations of each and every state variable. While the first component is well identified and easy to work out, the implementation of the last ones is problematic as the investor must identify all the relevant state variables and estimate their distribution characteristics. Using a new decomposition of the optimal wealth, we show that the optimal strategy can be simplified to include, in addition to the speculative component, only two Merton-Breeden type hedging elements, however large is the number of state variables. The first one is associated with interest rate risk and the second one with the risk brought about by the co-movements of the spot interest rate and the market prices of risk. The implementation of the optimal strategy is thus much easier, as it involves estimating the characteristics of the yield curve and the market prices of risk only rather than those of numerous (a priori unknown) state variables. Moreover, the investor's horizon is shown explicitly to play a crucial role in the optimal strategy design, in sharp contrast with the traditional decomposition.
Download or read book Pricing Interest Rate Derivatives written by Markus Bouziane and published by Springer Science & Business Media. This book was released on 2008-03-18 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: The author derives an efficient and accurate pricing tool for interest-rate derivatives within a Fourier-transform based pricing approach, which is generally applicable to exponential-affine jump-diffusion models.
Download or read book Optimal Risk Return Trade Offs of Commercial Banks written by Jochen Kühn and published by Springer Science & Business Media. This book was released on 2006-09-28 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book criticizes the fact that profitability measures derived from capital market models such as the Sharpe ratio and the reward-to-VaR ratio are proposed for loan portfolios, although it is not proven whether their risk-return trade-offs are optimal for banks. The authors demonstrate that even the reward-to-VaR ratio, which is developed for valuating loan portfolios, can be highly misleading. They also show how market discipline, capital requirements, and insured deposits affect decision-making.
Download or read book Fuzzy Portfolio Optimization written by Yong Fang and published by Springer Science & Business Media. This book was released on 2008-09-20 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most of the existing portfolio selection models are based on the probability theory. Though they often deal with the uncertainty via probabilistic - proaches, we have to mention that the probabilistic approaches only partly capture the reality. Some other techniques have also been applied to handle the uncertainty of the ?nancial markets, for instance, the fuzzy set theory [Zadeh (1965)]. In reality, many events with fuzziness are characterized by probabilistic approaches, although they are not random events. The fuzzy set theory has been widely used to solve many practical problems, including ?nancial risk management. By using fuzzy mathematical approaches, quan- tative analysis, qualitative analysis, the experts’ knowledge and the investors’ subjective opinions can be better integrated into a portfolio selection model. The contents of this book mainly comprise of the authors’ research results for fuzzy portfolio selection problems in recent years. In addition, in the book, the authors will also introduce some other important progress in the ?eld of fuzzy portfolio optimization. Some fundamental issues and problems of po- folioselectionhavebeenstudiedsystematicallyandextensivelybytheauthors to apply fuzzy systems theory and optimization methods. A new framework for investment analysis is presented in this book. A series of portfolio sel- tion models are given and some of them might be more e?cient for practical applications. Some application examples are given to illustrate these models by using real data from the Chinese securities markets.
Download or read book Portfolio Optimization with Risk Constraints in the View of Stochastic Interest Rates written by William Ntambara and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optimal Portfolio Policies for an Investor with Uncertain Time of Death in a Stochastic Interest Rate Economy written by Mads Kvist Pedersen and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Complex Systems Approach to Economic Dynamics written by Abraham C.-L. Chian and published by Springer Science & Business Media. This book was released on 2007-08-17 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: Statistical analysis of stock markets and foreign exchange markets has demonstrated the intermittent nature of economic time series. A nonlinear model of business cycles is able to simulate intermittency arising from order-chaos and chaos-chaos transitions. This monograph introduces new concepts of unstable periodic orbits and chaotic saddles, which are unstable structures embedded in a chaotic attractor and responsible for economic intermittency.
Download or read book Risk Averse Capacity Control in Revenue Management written by Christiane Barz and published by Springer Science & Business Media. This book was released on 2007-08-02 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book revises the well-known capacity control problem in revenue management from the perspective of a risk-averse decision-maker. Modelling an expected utility maximizing decision maker, the problem is formulated as a risk-sensitive Markov decision process. Special emphasis is put on the existence of structured optimal policies. Numerical examples illustrate the results.
Download or read book Artificial Markets Modeling written by Andrea Consiglio and published by Springer Science & Business Media. This book was released on 2007-08-16 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume features contributions to agent-based computational modeling from the social sciences and computer sciences. It presents applications of methodologies and tools, focusing on the uses, requirements, and constraints of agent-based models used by social scientists. Topics include agent-based macroeconomics, the emergence of norms and conventions, the dynamics of social and economic networks, and behavioral models in financial markets.
Download or read book Agent Based Modeling written by Norman Ehrentreich and published by Springer Science & Business Media. This book was released on 2007-10-25 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reconciles the existence of technical trading with the Efficient Market Hypothesis. By analyzing a well-known agent-based model, the Santa Fe Institute Artificial Stock Market (SFI-ASM), it finds that when selective forces are weak, financial evolution cannot guarantee that only the fittest trading rules will survive. Its main contribution lies in the application of standard results from population genetics which have widely been neglected in the agent-based community.
Download or read book Equity and Efficiency Considerations of Public Higher Education written by Salvatore Barbaro and published by Springer Science & Business Media. This book was released on 2005-12-16 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: It has become part of the conventional wisdom in the economics of education that subsidies to higher education have a regressive distributional effect. Given that relatively more children from wealthier families enroll in higher education, many economist assume that these subsidies to higher education have an unwanted distributional impact. This volume presents new empirical evidence for the cross-sectional point of view and provides an analytical framework for the longitudinal perspective. The present volume also analyzes the equity and efficiency effects of widely-discussed funding reforms and proposes a voluntary graduate tax.
Download or read book Index and Stability in Bimatrix Games written by H. Arndt von Schemde and published by Springer Science & Business Media. This book was released on 2005-12-11 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: The index of an equilibrium in a game gives information about the "stability" of the equilibrium, for example with respect to game dynamics. Unfortunately, index theory is often very technical. This book presents a new geometric construction that visualises the index in an intuitive way. For example, a 3A-n game, for any n, can be represented by a figure in the plane, from which one can read off any equilibrium, and its index as a geometric orientation. With this insight, the index can be characterised in strategic terms alone. Moreover, certain "hyperstable" equilibrium components are seen to have nonzero index. The construction gives an elementary proof that two-player games have a Nash equilibrium, and, in an unusual direction, the powerful fixed point theorem of Brouwer.
Download or read book Sovereign Default Risk Valuation written by Jochen Andritzky and published by Springer Science & Business Media. This book was released on 2006-11-23 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: Past cycles of sovereign lending and default suggest that debt crises will recur at some point. This book shows why investors should reckon with similar credit events in the future. Surveying the sovereign bond market, the author provides investors with a useful toolkit for analyzing sovereign bonds and foreseeing trends in the international financial architecture. The result should be a better understanding of debt crises and more deliberate investment decisions.
