Economics 633 FINANCIAL ECONOMICS AMERICAN UNIVERSITY SPRING 2009 Professor Callahan 119 Roper Hall (202) 885-3737 E-mail: colleen@american.edu Office Hours: Tuesdays and Fridays 10-11 and 4–5, Wednesdays 2-4, and by appointment GOALS OF THE COURSE At its core, economics is the study of how to best allocate scarce resources. The way in which those scarce resources should be optimally allocated over time is the focus of the sub-field of economics known as finance, which has become both popular and sophisticated over the past two decades. The costs and benefits of financial decisions are often challenging to evaluate since they are spread out over months or years and are not known with certainty. The goal of this course is to develop and apply the main tools of modern finance in order to understand the crucial role of financial markets and financial decision making in the economy. We will pay special attention to theories of how assets are priced, including the pricing of financial derivatives such as options and futures. We will also examine the possible explanations for the recent financial market turmoil, including events in the mortgage markets, bond markets and stock markets around the world. BY THE END OF THIS COURSE, YOU SHOULD BE ABLE TO: • Explain the ways in which financial markets can contribute (or not) to economic efficiency and the transfer of risk • Analyze the principles that underlie optimal portfolio strategies • Understand the theory of options pricing and its various applications • Explain the role of the “no arbitrage” condition • Evaluate hedging strategies • Describe the development of asset securitization and the risks it may pose, as in the case of certain mortgage-backed securities • Use models of securities prices in discrete time • Understand the limits of the efficient markets hypothesis (EMH) • Use the capital asset pricing model (CAPM) and its extensions to value securities and understand the limitations of the theory • Explain the key insights of “behavioral finance” along with its critique of traditional finance • Articulate the possible explanations for the ongoing turmoil in global financial markets, including the markets for mortgages, mortgage-backed securities, bonds, and stocks REQUIRED TEXTBOOK Cvitanic and Zapatero, Introduction to the Economics and Mathematics of Financial Markets, MIT Press, 2004. REQUIRED READINGS There are a number of journal articles that can be accessed via the Blackboard site for this course. Look under “E-reserves” or “External Links” for most of the articles. A list of articles is provided on the weekly schedule of topics. EVALUATION There will be one midterm and a final exam, along with four problem sets. (I will include only your top three scores on the problem sets in computing your final grade.) You may discuss the problem sets with other students in the class. However, you must write your own answers to the questions. You are also required to complete a 10-page paper, which will comprise 25% of your final grade. The topic is subject to my approval. (This assignment does not meet the research requirement of the master’s program.) A preliminary outline must be submitted to me (one page is sufficient) on or before March 18. The paper will be due on the last day of class, April 22. Midterm Problem sets Paper Final exam Important dates March 4 Throughout semester April 22 May 6 (Wednesday) % of final grade 30% 15% 25% 30% POLICY ON LAPTOPS Please use your laptop in a responsible way and only for class-related activities. Do not use it to surf the internet or check e-mail during class. ACADEMIC INTEGRITY: Standards of academic conduct are set forth in the University’s Academic Integrity Code. By registering at the university, you have acknowledged your awareness of the Academic Integrity Code and you are obliged to become familiar with your rights and responsibilities as defined by the Code. Violations of the Academic Integrity Code will not be treated lightly, and disciplinary actions will be taken should such violations occur. Please see me if you have any questions about the academic violations described in the Code in general or as they relate to particular requirements for this course. IF YOU NEED HELP Please contact me as soon as possible either by e-mail, by telephone, or by visiting my office. Together we can develop a plan to address whatever problems you may be experiencing. 2 SCHEDULE OF TOPICS AND REQUIRED READINGS Most of the journal articles listed below can be accessed via the “E-reserves” or “external links” section of the Blackboard site for this course. “C and Z” refers to the textbook by Cvitanic and Zapatero Wednesday, Jan.14 Overview: The Role of Finance in the Economy • Households and Firms • The US Financial System • Principles of Finance • Financial markets and economic growth Readings: C and Z: pp. xx-xxii, and Chapter 1 AND Varian, Hal. “A Portfolio of Nobel Laureates: Markowitz, Miller, and Sharpe,” Journal of Economic Perspectives, Winter 1993, pp. 159-169. Levine, Ross and Sara Zervos. “Stock Markets, Banks and Economic Growth,” American Economic Review, Vol. 88, June 1998, pp. 537-558. Cochrane, John. “New Facts in Finance,” NBER Working Paper # 7169, June 1999. Wednesday, Jan. 21 Interest Rates Models of Securities Prices Readings: C and Z: Chapters 2 and 3 Wednesday, Jan. 28 Bond Hedging and Securitization The Term Structure of Interest Rates PROBLEM SET # 1 DUE Readings: C and Z: Chapter 10 AND 3 World Bank Bonds (described at the web site: www.worldbank.org) AND Kendall, Leon T. and Michael J. Fishman. A Primer on Securitization, Cambridge: MIT Press, 1996: • Kendall, Leon T. “Securitization: A New Era in American Finance,” Chapter 1 (pp. 1-16); • Baron, Neil. “The Role of Rating Agencies in the Securitization Process,” Chapter 7 (pp. 81-90); • Phillips, Susan. “The Place of Securitization in the Financial System: Implications for Banking and Monetary Policy,” Chapter 11 (pp. 129-138) Estrella, Arturo. “The Yield Curve as a Leading Indicator: Frequently Asked Questions,” The Federal Reserve Bank of New York, Oct. 2005. (under “external links”) Wednesday, Feb. 4 Asset Valuation Principles • Arbitrage and its Limits • Anomalies: When the Law of One Price Fails • The Efficient Markets Hypothesis Readings: Varian, Hal. “The Arbitrage Principle in Financial Economics,” Journal of Economic Perspectives, Fall 1987, pp. 53-72. Lamont, Owen and Richard Thaler. “Anomalies: The Law of One Price in Financial Markets,” Journal of Economic Perspectives, Fall 2003, pp. 191-202. Shleifer, Andrei and Lawrence H. Summers. “The Noise Trader Approach to Finance,” Journal of Economic Perspectives, Spring 1990, pp. 19-33. Hong, Harrison and Jeremy Stein. “Disagreement and the Stock Market.” Journal of Economic Perspectives, Spring 2007, pp. 109-128. Baker, Malcolm and Jeffrey Wurgler. “Investor Sentiment in the Stock Market,” Journal of Economic Perspectives, Spring 2007, pp. 129-151. 4 Malkiel, Burton. “The Efficient Market Hypothesis and Its Critics,” Journal of Economic Perspectives, Winter 2003, pp. 59-82. Shiller, Robert. “From Efficient Markets Theory to Behavioral Finance,” Journal of Economic Perspectives, Winter 2003, pp. 83-104. Wednesday, Feb. 11 Optimal Consumption/Portfolio Strategies PROBLEM SET # 2 DUE Reading: C and Z: Chapter 4 Wednesday, Feb. 18 Risk Readings: C and Z: Chapter 5 AND Edwards, Franklin R. “Hedge Funds and the Collapse Of Long-Term Capital Management,” Journal of Economic Perspectives, Spring 1999, pp. 189-210. Stulz, Rene. “Hedge Funds: Past, Present, and Future,” Journal of Economic Perspectives, Spring 2007, pp. 175-194. Calomiris, Charles. “Bank Failures in Theory and History: The Great Depression and Other ‘Contagious’ Events,” NBER Working Paper #13597, Nov. 2007. Wednesday, Feb. 25 Arbitrage and Risk-Neutral Pricing PROBLEM SET # 3 DUE Readings: C and Z: Chapter 6 AND Ross, Stephen A. Neoclassical Finance, Princeton University Press, 2005. Chapter 1, pp. 1-21. 5 Wednesday, Mar. 4 MIDTERM SPRING BREAK Wednesday, Mar. 18 Option Pricing PAPER OUTLINE DUE Reading: C and Z: Chapter 7 Wednesday, Mar. 25 Hedging Readings: C and Z: Chapter 9 AND Shiller, Robert. “Derivatives Markets for Home Prices,” NBER Working Paper #13962, April 2008. Wednesday, Apr. 1 The Crisis in Financial Markets: 2007-2008 Readings: Gorton, Gary. “The Subprime Panic,” NBER Working Paper #14398, October 2008. Brunnermeier, Markus. “Deciphering the Liquidity and Credit Crunch of 2007-08, NBER Working Paper #14612, December 2008. Kaplan, Steven and Per Stromberg.. “Leveraged Buyouts and Private Equity,” NBER Working Paper #14207, July 2008. Einhorn, David. “Private Profits and Socialized Risk,” April 2008. A speech delivered at Grant’s Spring Investment Conference. 6 Wednesday, Apr. 8 The Capital Asset Pricing Model (CAPM) Readings: C and Z: Chapters 12 and 13 Wednesday, Apr. 15 The Multi-factor CAPM PROBLEM SET # 4 DUE Readings: C and Z: Chapter 14 AND Mehra, Rajinish and Edward Prescott. “The Equity Premium in Retrospect,” NBER Working Paper 9525, February 2003. White, Eugene. “Bubbles and Busts: The 1990s in the Mirror of the 1920s,” NBER Working Paper # 12138, Mar. 2006 Wednesday, Apr. 22 Behavioral Finance: Challenges to the Orthodoxy PAPER DUE Readings: Barberis, Nicholas and Richard Thaler. “A Survey of Behavioral Finance,” NBER Working Paper, #9222, September 2002. Hau, Harold and Helene Rey. “Home Bias at the Fund Level,” NBER Working Paper #14172, July 2008. Forbes, Kristin. “Why Do Foreigners Invest in the United States?” NBER Working Paper #13908, April 2008. Wednesday, May 6 FINAL EXAM (5:30-8:00 PM) 7