The United States is a highly developed mixed economy. It is the world's largest economy by nominal GDP; it is also the second largest by purchasing power parity (PPP), behind China. It has the world's sixth highest per capita GDP (nominal) and the eighth highest per capita GDP (PPP) as of 2024. The U.S. accounted for 26% of the global economy in 2023 in nominal terms, and about 15.5% in PPP terms. The U.S. dollar is the currency of record most used in international transactions and is the world's reserve currency, backed by a large U.S. treasuries market, its role as the reference standard for the petrodollar system, and its linked eurodollar. Several countries use it as their official currency and in others it is the de facto currency. Since the end of World War II, the economy has achieved relatively steady growth, low unemployment and inflation, and rapid advances in technology.
The gross world product (GWP), also known as gross world income (GWI), is the combined gross national income of all the countries in the world. Because imports and exports balance exactly when considering the whole world, this also equals the total global gross domestic product (GDP). According to the World Bank, the 2013 nominal GWP was approximately 75.59 trillion United States dollars. In 2017, according to the CIA's World Factbook, the GWP was around $80.27 trillion in nominal terms and totaled approximately 127.8 trillion international dollars in terms of purchasing power parity (PPP). The per capita PPP GWP in 2017 was approximately 17,500 international dollars according to the World Factbook. According to the World Bank, the 2020 GWP in current dollars was approximately $84.705 trillion.
The world economy or global economy is the economy of all humans in the world, referring to the global economic system, which includes all economic activities conducted both within and between nations, including production, consumption, economic management, work in general, financial transactions and trade of goods and services. In some contexts, the two terms are distinct: the "international" or "global economy" is measured separately and distinguished from national economies, while the "world economy" is simply an aggregate of the separate countries' measurements. Beyond the minimum standard concerning value in production, use and exchange, the definitions, representations, models and valuations of the world economy vary widely. It is inseparable from the geography and ecology of planet Earth.
The national debt of the United States is the total national debt owed by the federal government of the United States to Treasury security holders. The national debt at any point in time is the face value of the then-outstanding Treasury securities that have been issued by the Treasury and other federal agencies. The terms "national deficit" and "national surplus" usually refer to the federal government budget balance from year to year, not the cumulative amount of debt. In a deficit year the national debt increases as the government needs to borrow funds to finance the deficit, while in a surplus year the debt decreases as more money is received than spent, enabling the government to reduce the debt by buying back some Treasury securities. In general, government debt increases as a result of government spending and decreases from tax or other receipts, both of which fluctuate during the course of a fiscal year. There are two components of gross national debt:
The gross national income (GNI), previously known as gross national product (GNP), is the total amount of factor incomes earned by the residents of a country. it is equal to gross domestic product (GDP), plus factor incomes received from non-resident by residents, minus factor income paid by residents to non-resident.
The net international investment position (NIIP) is the difference between the external financial assets and liabilities of a country. External debt of a country includes government debt and private debt. External assets publicly and privately held by a country's legal residents are also taken into account when calculating NIIP. Commodities and currencies tend to follow a cyclical pattern of significant valuation changes, which is also reflected in NIIP.
This article includes a list of China's historical gross domestic product (GDP) values, the market value of all final goods and services produced by a nation in a given year. The GDP dollar estimates presented here are either calculated at market or government official exchange rates (nominal), or derived from purchasing power parity (PPP) calculations. This article also includes historical GDP growth.