Browsing by Subject "Hedging"
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Item Essays on achieving investment targets and financial stability(2013-05) Monin, Phillip James; Zariphopoulou, Thaleia, 1962-This dissertation explores the application of the techniques of mathematical finance to the achievement of investment targets and financial stability. It contains three self-contained but broadly related essays. Sharpe et al. proposed the idea of having an expected utility maximizer choose a probability distribution for future wealth as an input to her investment problem rather than a utility function. They developed the Distribution Builder as one way to elicit such a distribution. In a single-period model, they then showed how this desired distribution for terminal wealth can be used to infer the investor's risk preferences. In the first essay, we adapt their idea, namely that a desired distribution for future wealth is an alternative input attribute for investment decisions, to continuous time. In a variety of scenarios, we show how the investor's desired distribution, combined with her initial wealth and market-related input, can be used to determine the feasibility of her distribution, her implied risk preferences, and her optimal policies throughout her investment horizon. We then provide several examples. In the second essay, we consider an investor who must a priori liquidate a large position in a primary risky asset whose price is influenced by the investor's liquidation strategy. Liquidation must be complete by a terminal time T, and the investor can hedge the market risk involved with liquidation over time by investing in a liquid proxy asset that is correlated with the primary asset. We show that the optimal strategies for an investor with constant absolute risk aversion are deterministic and we find them explicitly using calculus of variations. We then analyze the strategies and determine the investor's indifference price. In the third essay, we use contingent claims analysis to study several aggregate distance-to-default measures of the S&P Financial Select Sector Index during the years leading up to and including the recent financial crisis of 2007-2009. We uncover mathematical errors in the literature concerning one of these measures, portfolio distance-to-default, and propose an alternative measure that we show has similar conceptual and in-sample econometric properties. We then compare the performance of the aggregate distance-to-default measures to other common risk indicators.Item Essays on corporate risk management(2011-08) Zhu, Rui, 1980-; Titman, Sheridan; Sialm, Clemens; Almazan, Andres; Alti, Aydogan; Hendricks, KennethThis dissertation addresses issues in corporate risk management. Part I examines the determinants for corporate decisions to commodity hedge and to the extent of hedging. Chapter 1 discusses prior literature, including theory and empirical evidence on corporate risk management. It provides the background to support the empirical analyses of Chapters 2, 3 and 4. Chapter 2 examines corporate decisions to commodity hedge. I find that firms are more likely to hedge when they are big, have risk management department set up and have more of their competitors hedge. Chapter 3 investigates what determines the extent of hedging conditional on hedging decisions and the cross-sectional and time series deviation of the hedge ratio. I find that firms tend to hedge less when they have younger CEOs and have more options in their compensation plan. I also find that when determining the hedge ratio, firms with young CEOs and higher option compensation tend to respond to past commodity price growth and to deviate from industry average. Part II investigates the relationship between corporate risk management and product market competition. Chapter 4 examines the different product market performance for firms with different hedging polices after commodity price shocks. I find that unhedged firms which are ex ante financially constrained lose market share and experience a decreased profitability during and after commodity price shocks. Chapter 5 examines whether the loss of unhedged constrained firms in product market is driven by the competitors. I find that firms with financial advantages—unconstrained hedged firms—tend to increase advertising expenditures and decrease price-cost-margins during negative commodity shocks, indicating that the market share loss of constrained unhedged firms is due to increased competition in the product market. Chapter 6 examines whether corporate risk management affects the likelihood of firms exiting the market. I find that constrained unhedged firms are 6% more likely to exit the market than their unconstrained hedged rivals and the effects are stronger in concentrated industries and industries with higher leverage dispersion.Item The mathematics of hedging(2009-12) Chen, Yi-Jen Elaine; Jablonowski, Christopher J.; Groat, Charles G.Possessing the knowledge to hedge energy price risks properly is essential and crucial for running a long-term business. In the past, many hedging instruments have been invented and widely used. By using these derivatives, decision makers reduce the price risk to a certain degree. To apply these hedging instruments to the perfect hedging strategies correctly, it is necessary to be familiar with these tools in the first place. This work introduces the financial tools widely applied in hedging, including forward contracts, futures, swaps and options. It also introduces the hedging strategies used on energy hedging. Since individuals are creating strategies according to their unique risk appetite and collected information, this work presents three risk appetites and a method of distinguishing valuable information. With the contribution of this thesis, future works can be done in the field that connect the information valuation and energy hedging by changing the behavior in each risk appetites’ hedging ratio.