Economic effects of the September 11 attacks
| Company type | Stock exchange |
|---|---|
| Industry | Financial services |
| Founded | May 17, 1792 in New York City, United States |
| Headquarters | New York City , United States |
The September 11 attacks in 2001 led to a significant global decline in stock markets. While sectors such as travel and entertainment experienced downturns, stocks in communications, pharmaceuticals, and defense saw gains. Online travel agencies were notably affected due to their emphasis on leisure travel. The attacks resulted in roughly $40 billion in insurance claims, making it one of the most costly insured events historically.
Financial markets
On September 11, 2001, the New York Stock Exchange (NYSE) postponed its opening after the initial impact of the first aircraft on the North Tower, and subsequently halted trading when the second plane struck the South Tower. Trading on the NASDAQ was also suspended. The NYSE building along with prominent financial institutions located on Wall Street were evacuated for safety. International exchanges such as the London Stock Exchange closed and evacuated amid concerns over additional attacks. The NYSE remained shut until the following Monday, marking its third extended closure following World War I and the Great Depression. Trading in the U.S. bond market was also suspended; notable government bond trader Cantor Fitzgerald was headquartered in the World Trade Center. Additionally, the New York Mercantile Exchange remained closed for a week after the events.
The Federal Reserve affirmed it was "open and operating," providing liquidity through its discount window. Over three days, it injected $100 billion daily to avert a financial meltdown. Federal Reserve Governor Roger W. Ferguson Jr. outlined these interventions aimed at economic stabilization amid potential market turmoil.
Prices for gold climbed sharply from $215.50 to $287 per ounce during London trading sessions. Both oil prices and U.S. gasoline prices experienced short-term spikes, with elevated gas prices persisting for approximately a week. Currency markets remained active; however, the United States dollar weakened considerably against the Euro, British pound, and Japanese yen. European stock markets suffered steep declines on the following day: Spain dropped 4.6%, Germany fell 8.5%, and London decreased by 5.7%. Latin American markets also tumbled—Brazil declined by 9.2%, Argentina by 5.2%, and Mexico by 5.6% before trading was suspended.
Insurance
Insurance claims from the September 11 attacks surpassed losses from earlier catastrophes like Hurricane Andrew, totaling more than $32 billion. These included business interruption costs ($11 billion), property damage ($9.6 billion), liability claims ($7.5 billion), workers’ compensation ($1.8 billion), and other related expenses ($2.5 billion). Leading reinsurers such as Berkshire Hathaway, Lloyd's, Swiss Re, and Munich Re each reported losses exceeding $2 billion. In the aftermath, shares of major reinsurers including Swiss Re and Baloise Insurance Group declined by over 10%, while Swiss Life’s stock dropped nearly 7.8%.
Airlines and aviation
The grounding of flights throughout the U.S. and Canada caused widespread operational disruptions, with many transatlantic flights rerouted to airports like Gander and Halifax under Transport Canada's Operation Yellow Ribbon initiative. United Airlines and American Airlines issued initial payments of $25,000 to victims’ families and refunded tickets for flights that were canceled.
The attacks worsened pre-existing financial difficulties within the airline industry, leading to sharp declines in airline and aircraft manufacturer stock values. Midway Airlines ceased operations immediately after the attacks, whereas Swissair was grounded in October 2001 due to liquidity problems before eventually liquidating. Numerous carriers faced bankruptcy threats, triggering tens of thousands of job losses within a week. To support recovery efforts, the federal government provided $10 billion in loan guarantees alongside $5 billion in emergency aid.
These challenges accelerated consolidation trends among major U.S. airlines as a means to reduce costs and improve efficiency amid volatile market conditions. Significant mergers included America West’s acquisition of US Airways in 2005 (which later merged with American Airlines in 2013), Delta’s merger with Northwest Airlines in 2008, and United’s combination with Continental Airlines in 2010. Although 9/11 acted as a catalyst, these consolidations also addressed underlying issues such as high fixed expenses, excess capacity, and fierce competition.
The reduction in demand for air travel contributed to retiring Concorde—the last supersonic passenger aircraft operating at that time.
Tourism
The tourism industry in New York City experienced a steep downturn, resulting in considerable financial setbacks for a sector that employs 280,000 people and contributes $25 billion annually. In the aftermath of the attacks, hotel occupancy rates fell below 40%, causing approximately 3,000 job losses. Additionally, anxiety about air travel surged, with a survey revealing that 65% of participants felt heightened distress and 55% reported an increased fear of flying shortly after the incident.
Security
Since the events of 9/11, there have been significant allocations of resources aimed at strengthening security measures within homeland security, national defense, and the private sector.
New York City
Within three months following 9/11, New York City faced a loss of nearly 430,000 jobs and $2.8 billion in wages, with export-oriented industries bearing the brunt. The city’s gross domestic product shrank by an estimated $30.3 billion through late 2001 and throughout 2002. To aid recovery efforts, the federal government disbursed $21.7 billion in immediate assistance targeting economic revitalization and infrastructure rebuilding.
Small enterprises located in Lower Manhattan near the World Trade Center endured severe damage, with about 18,000 businesses either destroyed or forced to relocate. Financial support was provided through the Small Business Administration as well as federal initiatives such as Community Development Block Grants and Economic Injury Disaster Loans, which played vital roles in facilitating recovery.
Other effects
The September 11 attacks directly led to the initiation of the U.S. war in Afghanistan and resulted in escalated homeland security expenditures. These attacks were also cited as a principal justification for the Iraq war. By 2008, Joseph Stiglitz projected that the total combined expenses of these conflicts would surpass $6 trillion.
External links
- Attack Gave a Devastating Shove to the City's Teetering Economy, The New York Times, September 8, 2002
- As Companies Scatter, Doubts on Return of Financial District, The New York Times, September 16, 2002