With a dramatic decrease in oil prices over the past few years, the opportunity for increased profitability within transportation companies has become a relevant topic of discussion. Oil is a commodity that influences the price of gas and jet fuel. As commodity prices, and oil prices in particular, have collapsed, one would expect transportation companies to benefit from a decrease in operating expenses and experience an increase in profitability. Through this thesis, I seek to prove that despite a dramatic decline in the price of oil, airline companies have not benefited due to their engagement in hedging activities, and therefore have not experienced an increase in profitability. My dataset includes a collection of operating expenses and operating profit for the four major domestic airline companies over the past seven years. These companies include Southwest, Delta, United, and American Airlines. I tested my hypothesis through regression analysis, and used fuel derivative gains or losses as the independent variable and operating profit as the dependent variable. Although my results are not significant, my analysis indicates that operating profit has, in fact, decreased through this recent period of declining oil prices, due to an increase in operating expenses through airline companies’ hedging activities.

To counter the problem of the volatility of jet fuel prices within the United States, many financial managers of U.S. airlines use hedging as a financial tool to mitigate the risk of exposure to market price volatility. However, their efforts often lead to financial distress for their airlines. The purpose of this qualitative grounded theory study was to explore U.S. airline managers' use of financial hedging to reduce the risk of exposure from the volatility of jet fuel prices. The conceptual framework was Simkowitz's theory of modern finance, which concerns debt policy, dividend policy, and investment policy as they relate to financial decision making by upper management. The research questions addressed when, why, and how U.S. airline financial managers would consider the use of hedging as a financial tool to mitigate the risk in the purchase of jet fuel at times of lower jet fuel prices. Interviews with a purposive sample of 20 U.S. airline financial managers provided data for analysis and theory development of jet fuel hedging utilization in the U.S. airline industry. Data analysis using the constant comparative method enabled the development of a theory of jet fuel hedging utilization. Participants reported using over-the-counter derivatives purchasing strategies as a form of hedging to protect their airlines against spikes in jet fuel prices on the open market. Using study findings, managers may be able to reduce jet fuel operating costs in the U.S. airline industry. Implications for positive social change include potentially higher profits and more jobs as well as lower consumer prices.

The airline industry is a major user of jet fuel and this constitutes a large component of the operating costs and is a risk coefficient for airlines. Several studies have been conducted on how oil price volatility affect stock prices and cash flows as well as how, in general, firms that uses derivatives experience lower stock returns volatility and stock s .The impact of oil price volatility on airline stock s and the impact of hedging on airline stock s have not been adequately examined, this paper fills this gap. By gathering daily frequency of oil spot prices to access the quarterly oil price volatility and stock s from 16 European airlines, we correlate quarterly oil price volatility to quarterly airline stock s as well as stock s and hedging percentages between 2010-2015, we reject the hypothesis that oil price volatility has an impact on airline stock s and that hedging reduces stock s. These findings therefore suggest that oil price volatility do not have a large impact on systematic risks or that hedging offset systematic risks. The findings are of interest to investors who want to make well informed investment decisions based on non-diversifiable equity risk since it has become popular for management recently to implement hedging policies to signal competency in risk management in order to attract investments.

本論文分為兩部分，第一部份是探討全球航空產業的油料避險會不會對公司價值有所影響，以及油料避險的誘因。第二部份則是檢視全球航空公司的風險曝露會不會影響分析師的預測誤差，尤其是燃油價格變動的風險曝露。 / In the first essay, we examine whether jet fuel hedging increases the market value of airline companies around the world. Using a sample of 70 airline companies from 32 countries over the period 1995 to 2005, we find that jet fuel hedging is not significantly positively related to their firm value in the global airlines, but this positive relationship holds in the various sub-samples and is significant for US and non-alliance firms. Moreover, our results show that the risk-taking behavior of executives and the tendency to avoid financial distress are important determinants for the jet fuel hedging activities of non-US airline companies. Alleviating the problem of underinvestment is also an important factor to explain the jet fuel hedging activities of US and non-alliance firms. Our results add support to the growing body of literature which finds that hedging increases firm value for global airline companies. In the second essay, we examine the extent analysts revise their earnings forecasts in response to oil price, interest rate and foreign exchange rate shocks they have observed during the year, and whether these revisions contain additional information about how current and past price shocks affect reported earnings, using the sample of the global airline industry. Empirical results indicate that jet fuel hedging can increase analysts’ forecast revisions in the total sample, and in the sub-sample of the volatile fuel price period. These results can also be seen in US and non-US airlines, and airlines with both strong and weak governance. Overall, our results show that oil price shocks play an important role in investor and analyst information uncertainty with regard to the global airline industry. Consequently, corporate risk disclosures only provide limited information about firms’ financial risk exposures. Two essays are comprised in this dussertation to examine whether jet fuel hedging has effects on firm value and analysts’ forecast accuracy in the global airline industry. Using global data allows us to cmpare the differences of jet fuel hedging behavior and incentives for hedging across different sub-samples. Furthermore, we also examine how jet fuel hedging affects analysts’ forecast erros across different sub-samples and its implications for firm disclosures about their risk exposures in the financial reports. In the first essay, we examine whether jet fuel hedging increases the market value of airline companies around the world. Using a sample of 70 airline companies from 32 countries over the period 1995 to 2005, we find that jet fuel hedging is not significantly positively related to their firm value in the global airlines, but this positive relationship holds in the various sub-samples and is significant for US and non-alliance firms. Moreover, our results show that the risk-taking behavior of executives and the tendency to avoid financial distress are important determinants for the jet fuel hedging activities of non-US airline companies. Alleviating the problem of underinvestment is also an important factor to explain the jet fuel hedging activities of US and non-alliance firms. Our results add support to the growing body of literature which finds that hedging increases firm value for global airline companies. In the second essay, we examine the extent analysts revise their earnings forecasts in response to oil price, interest rate and foreign exchange rate shocks they have observed during the year, and whether these revisions contain additional information about how current and past price shocks affect reported earnings, using the sample of the global airline industry. Empirical results indicate that jet fuel hedging can increase analysts’ forecast revisions in the total sample, and in the sub-sample of the volatile fuel price period. These results can also be seen in US and non-US airlines, and airlines with both strong and weak governance. Overall, our results show that oil price shocks play an important role in investor and analyst information uncertainty with regard to the global airline industry. Consequently, corporate risk disclosures only provide limited information about firms’ financial risk exposures.