Washington, D.C., also known as Washington, DC for short, is the capital of the United States of America. It is named after George Washington, the first president of the United States, near Virginia and Maryland, and is located in the northeastern part of the United States and the mid-Atlantic region. It is a special administrative division set up as the capital in 1790 and directly under the jurisdiction of the US Congress, so it does not belong to any state in the United States.

In 20 16, Washington's actual regional GDP was109.3 billion US dollars, ranking 34th among American states. Its main industries are related to government agencies. It is the location of most American federal government agencies and embassies in the United States, the headquarters of international organizations such as the World Bank, the International Monetary Fund and the Organization of American States, and it also has numerous museums and cultural historical sites.

Political and business industries:

Among the economic sources of Washington, D.C., the first is the federal government's appropriation and its institutional expenditure, which contributes 33.9% to the gross national product (GDP). Specialized industries and commerce are second, contributing 24.2% to GDP.

As the political center of the United States, many economic elements in Washington, D.C. are related to government needs, and the federal government has a large number of outsourcing businesses that require enterprises to participate, which has led to the development of lobbying companies, legal services, financial services, information services, scientific and technological services, national defense science and technology and other industries.

According to the "Global Financial Center Index Ranking" of Z/Yen think tank in 20 16, Washington, D.C. has become the second largest financial center in the United States and North America after new york.