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Browsing by Author "Ziemba, William T."
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2000-01-20BuchA Dynamic Asset Allocation Model with Downside Risk Control Zhao, Yonggan; Ziemba, William T.This paper presents a new stochastic model for investment. The investor's objective is to maximize the expected growth rate while controlling for downside risk. Assuming lognormally distributed prices, the strategy that ...
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2003-09-30BuchArbitrage pricing simplified Kallio, Markku; Ziemba, William T.The paper derives fundamental arbitrage pricing results in finite dimensions in a simple unified framework using Tucker's theorem of the alternative. Frictionless results plus those with dividends, periodic interest payments, ...
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2002-01-29BuchCapital growth with security MacLean, Leonard C.; Sanegre, Rafael; Zhao, Yonggan; Ziemba, William T.This paper discusses the allocation of capital over time with several risky assets. The capital growth log utility approach is used with conditions requiring that specific goals are achieved with high probability. The ...
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1999-09-20BuchCreating Synthetic Option Strategies for Asset Allocation with Transaction Costs Using Multi-Period Stochastic Programming Zhao, Yonggan; Ziemba, William T.We discuss a new approach to asset allocation with transaction costs. A multi-period stochastic linear programming model is developed where the risk is based on the worst case payoff which is endogenously determined by the ...
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2000-06-13BuchDetermining risk neutral probabilities and optimal portfolio policies in a dynamic investment model with downside risk control in the presence of trading frictions Zhao, Yonggan; Ziemba, William T.This paper develops an approximate method for solving multiperiod utility maximization investment models with downside risk control characterized by the minimum attainable wealth among all possible scenarios. The stochastic ...
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1999-12-20BuchHedging electricity portfolios via stochastic programming Fleten, Stein-Erik; Stein, W.; Ziemba, William T.Electricity producers participating in the Nordic wholesale-level market face significant uncertainty in inflow to reservoirs and prices in the spot and contract markets. Taking the view of a single risk-averse producer, ...
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2003-09-30BuchIntertemporal mean-variance efficiency with a Markovian state price density Zhao, Yonggan; Ziemba, William T.This paper extends Merton's continuous time (instantaneous) mean-variance analysis and the mutual fund separation theory. Given the existence of a Markovian state price density process, the optimal portfolios from concave ...
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2000-01-20BuchIntertemporal Surplus Management Rudolf, Markus; Ziemba, William T.This paper presents an intertemporal portfolio selection model for pension funds that maximize the intertemporal expected utility of the surplus of assets net of liabilities. Following Merton (1973) it is assumed that both ...
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2000-06-13BuchMean-variance versus expected utility in dynamic investment analysis Ziemba, William T.; Zhao, YongganThis paper derives the mean-variance efficient frontier and optimal portfolio policies for a dynamic investment model. In the absence of arbitrage opportunities, the optimal expected portfolio value can be identified through ...
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2003-09-30BuchOn Leland's option hedging strategy with transaction costs Zhao, Yonggan; Ziemba, William T.Nonzero transaction costs invalidate the Black-Scholes (1973) arbitrage argument based on continuous trading. Leland (1985) developed a hedging strategy which modifies the Black-Scholes hedging strategy with a volatility ...
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2003-09-30BuchStock ownership decisions in DC pension plans Douglass, Julian; Wu, Owen; Ziemba, William T.This paper considers the risk of employee pension accounts when there is a large weighting in company stock. The effect of reduced diversification and job related risk are considered. Mean-variance and scenario-based ...
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1999-12-20BuchThe Application of Operations Research Techniques to Financial Markets Board, John; Sutcliffe, Charles; Ziemba, William T.This paper reviews the application of OR to financial markets. After considering reasons for the attractiveness of general finance problems to OR researchers, the main types of financial market problem amendable to OR are ...
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2003-09-30BuchThe duality of option investment strategies for hedge funds Rodriguez-Mancilla, J.R.; Ziemba, William T.This paper explores the structure of optimal investment strategies using stochastic programming and duality theory in investment portfolios containing options for a hedge fund manager who attempts to beat a benchmark. ...
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2000-04-13BuchTime to wealth goals in capital accumulation MacLean, Leonard C.; Ziemba, William T.; Li, YumingThis paper considers the problem of continuous investment of capital in risky assets over time. Using a Bayesian framework, a model for asset prices is developed where the current price dynamics depend on the history of ...