Options introduce an essential nonlineary into portfolio management. They are contracts between buyers and writers, who agree on exercise prices and dates at which the buyer can buy or sell the underlying (such as a stock). Options are priced based on the price and volatility of the underlying asset as well as the duration of the option contract. The Black-Scholes options pricing model is one of the most famous equations in finance and offers a useful first approximation for prices for option contracts.

Futures markets have expanded far beyond their initial application to farmer's planting and harvest cycles. These markets now allow investors and traders to set prices for a broad spectrum of assets and for a whole term structure stretching into the distant future. Some of these markets are often priced according to simple fair-value formulae, others are not. Futures markets can be in backwardation, where the future price is lower than the present, spot price. They can also be in contango, where the price rises with maturity and is higher in the future than it is today.

Futures markets were started in Osaka, Japan in the 1600s to create an authoritative and meaningful market price for agricultural products, using standardized contracts. Since then, futures markets have been copied around the world to allow the hedging various future risks, financial and other. In the United States, the Chicago Mercantile Exchange and the Chicago Board of Trade have been the most popular futures trading markets.

Stephen Schwarzman, Co-Founder of Blackstone Group, a private equity firm, speaks about his experience in the industry. He discusses his thoughts on global finance, particularly at such an interesting and challenging point in the history of financial institutions. Although the near future might be rough for the United States and economies around the globe, capital does tend to come back and regulators are busy figuring out how best to put safeguards on the system. He also offers career advice and mentions some of the surprises he came across upon entering the world of finance.

The exchanges in which stocks and other securities are traded serve an important function in finance. They bring together people interested in buying and selling securities in order to create a universal price. Brokers and dealers are also an important part of the system, their methods and standards are ultimately behind the success of the exchanges. Many information innovations have advanced the functioning of exchanges, going all the way back to the ticker machine, which was created to communicate the price of securities at a point in time to all interested parties.

Most people are not very good at dealing in financial markets. Professional money managers, such as financial advisors and financial planners, assist individuals in matters of personal finance. FINRA and the SEC monitor the activities of these managers in order to protect individual investors. Mutual funds, exchange traded funds also exist to assist individual investments, and pension funds provide further services. These investment institutions help people to put money in diversified portfolios and, in some cases, reap some tax benefits for funding their retirement income.

First, Professor Shiller discusses today's changing financial system and recent market stabilization reform introduced by U.S. Treasury Secretary Henry Paulson. The financial system is inherently unstable and would benefit from more surveillance, particularly for consumer protection issues, given the recent subprime mortgage crisis. Although this particular reform might not be successful, more regulators and policymakers are talking about changing the stabilization system and will likely alter the role of the Fed in the future.

Midterm Exam 2 covers Lectures 11 through 16.

Central Banks, originally created as bankers' banks, implement monetary policy using their leverage over the supply of money and credit standards. Since the Bank of England was founded in 1694, through the gold standard which lasted until the 1930s, and into modern times, central banks have pursued monetary policy to stabilize the banking system. Central banks monitor currency flows and inflation, acting when crises, such as bank runs, emerged. More recently, central banks have taken an increasingly expansive role in stabilizing economic fluctuations.

Mr. Carl Icahn, a prominent activist investor in corporate America, talks about his career and how he became interested in finance and involved in shareholder activism. He discusses his thoughts about today's economy and American businesses and their inherent threats and opportunities. He believes that the biggest challenge facing corporate America is weak management and that today's CEOs, with exceptions, might not be the most capable of leading global companies.