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In the social sciences, economics is the study of human choice behavior and the methodology used to make associated investment and production decisions; in particular, though not limited to, how those choices and decisions determine the allocation of scarce resources and their effect on production, distribution, and consumption. The word "economics" is from the Greek words οἶκος [oikos], meaning "family, household, estate", and νέμω [nemo], or "distribution, allocation", hence meaning "household management" or "management of the state". An economist is a person using economic concepts and data in the course of employment, or someone who has earned a university degree in the subject. Economics undergraduate courses cover at least two main branches:

  • Microeconomics studies the behavior of individual households and firms in making decisions on the allocation of limited resources. Microeconomics applies to markets where goods or services are bought, and sold. It examines how decisions and behaviors affect the supply and demand for goods and services, which determines prices, and how prices, in turn, determine the quantity supplied and quantity demanded of goods and services.
  • Macroeconomics studies inflation, price levels, rate of growth, national income, gross domestic product and changes in unemployment of a company, rather than the more specific details that microeconomics studies. [[1]]


There are also other sub-fields of economics.

In economics, economic systems study and analyze the organizing of production, distribution, consumption and investment. As well as, the study of optimal resource allocation and institutional design. Traditionally, the study of economic systems was based on a dichotomy , or set, between market economies and planned economies, but contemporary studies compare and contrast a number of different variables, such as ownership structure (Public, Private or Collective), economic coordination (planning, markets or mixed), management structure (Hierarchy versus adhocracy), the incentive system, and the level of centralization in decision-making. An economy can be analyzed in terms of its economic sectors, the classic breakdown being into primary, secondary and tertiary. A business, also known as an enterprise or a firm, is an organization involved in the trade of goods, services, or both to consumers. Businesses are prevalent in capitalist economies, where most of them are privately owned and provide goods and services to customers in exchange of other goods, services, or money. Businesses may also be not-for-profit or state-owned. Management in business and organizations is the function that coordinates the efforts of people to accomplish goals and objectives using available resources efficiently and effectively. Management comprises planning, organizing, staffing, leading or directing, and controlling an organization or initiative to accomplish a goal. Management is also an academic discipline, and is traditionally taught at business schools. Economic policy refers to the actions that governments take in the economic field. It covers the systems for setting interest rates and government budget as well as the labor market regulations, national ownership, trade policy, monetary policy, fiscal policy, regulatory policy, anti-trust policy and industrial policy. In economics, sustainable development refers to development that meets the needs of the present without compromising the ability of future generations to meet their own needs.

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Richard Cantillon (1680s – May 1734) was an Irish-French economist and author of Essai sur la Nature du Commerce en Général (Essay on the Nature of Trade in General), a book considered by William Stanley Jevons to be the "cradle of political economy". Although little information exists on Cantillon's life, it is known that he became a successful banker and merchant at an early age. His success was largely derived from the political and business connections he made through his family and through an early employer, James Brydges. During the late 1710s and early 1720s, Cantillon speculated in, and later helped fund, John Law's Mississippi Company, from which he acquired great wealth. However, his success came at a cost to his debtors, who pursued him with lawsuits, criminal charges, and even murder plots until his death in 1734.


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A vintage travel gear seller at Marché Dauphine, Saint-Ouen, the home to Paris' flea market

A flea market (or swap meet) is a type of bazaar that rents space to people who want to sell or barter merchandise. Used goods, low quality items, and high quality items at low prices are commonplace.

Selected economy

US county household median income 2009.png

The United States of America is the world's largest single national economy. The United States' nominal GDP was estimated to be $17.295 trillion as of Q2 2014, approximately a quarter of nominal global GDP. Its GDP at purchasing power parity is also the largest of any single country in the world, approximately a fifth of the global total. The U.S. dollar is the currency most used in international transactions and is the world's foremost reserve currency. Several countries use it as their official currency, and in many others it is the de facto currency. Its six largest trading partners are Canada, China, Mexico, Japan, Germany, and Italy.


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"We want to make it clear at the outset that we are not devotees of any particular economist's thought, almost every school of economics has something relevant to say about the recent crisis, and our analysis relies on a range of thinkers. Keynes has his say, but so do other voices. In fact, we believe that understanding and managing crises requires a more holistic and eclectic approach than is perhaps customary. It's necessary to check ideology at the door and look at matters more dispassionately. Crises come in many colors, and what works in one situation may not work in another."

Nouriel Roubini and Stephen Mihm, Crisis Economics, 2010

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11:31, 09 September, 2017 (UTC)
6,360.19 Decrease 37.68 Decrease 0.59%
2,461.43 Decrease 3.67 Decrease 0.15%
14,985.32 Decrease 39.21 Decrease 0.26%
50,083.80 Decrease 165.32 Decrease 0.33%
7,377.60 Decrease 19.38 Decrease 0.26%
12,303.98 Increase 7.35 Increase 0.06%
5,113.49 Decrease 1.13 Decrease 0.02%
8,912.05 Increase 5.39 Increase 0.06%
518.82 Steady 0.01 Steady 0.00%
3,938.24 Increase 16.30 Increase 0.42%
10,129.60 Increase 4.70 Increase 0.05%
2,343.72 Decrease 2.47 Decrease 0.11%
27,668.47 Increase 145.55 Increase 0.53%
5,739.45 Decrease 14.37 Decrease 0.25%
10,609.95 Increase 71.44 Increase 0.68%

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