Portal:Business and economics

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The New York Stock Exchange floor

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 νόμος [nomos], or "custom, law", and hence literally means "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 always cover at least the 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 deals with the performance, structure, behavior, and decision-making of an economy as a whole, rather than individual markets. This includes national, regional, and global economies.

However, there are also other sub-fields of economics.

In economics, economic systems is the study and analysis of organizing production, distribution, consumption and investment and the study of optimal resource allocation and institutional design. Traditionally the study of economic systems was based on a dichotomy 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. 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. An economy can be analyzed in terms of its economic sectors, the classic breakdown being into primary, secondary and tertiary. 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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Damage from Hurricane Katrina

Actuaries are business professionals who deal with the financial impact of risk and uncertainty. Actuaries are highly trained experts with a deep understanding of financial security systems, their reasons for being, their complexity, their mathematics, and the way they work. They evaluate the likelihood of future events and design creative ways to quantify the contingent outcomes in order to minimize losses associated with uncertain undesirable events. These risks can impact both sides of the balance sheet and require asset management, liability management, and valuation skills. It takes a combination of strong analytical skills, business knowledge and understanding of both human behavior and the vagaries of information systems to design and manage programs that control risk. Actuaries work in a number of insurance disciplines, which may be classified as life, health, pensions, annuities, and asset management, social welfare programs, property, casualty, liability, general insurance and reinsurance.

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Say no to bribes in Zambia.
Credit: Lars Plougmann

Bribery around the world is estimated at about $1 trillion (£494bn). The burden of corruption falls disproportionately on the bottom billion people living in extreme poverty who cannot afford to pay and who thus receive sub-standard treatment from officials.

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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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"What is prudence in the conduct of every private family can scarce be folly in that of a great kingdom. If a foreign country can supply us with a commodity cheaper than we ourselves can make it, better buy it of them with some part of the produce of our own industry employed in a way in which we have some advantage. The general industry of the country, being always in proportion to the capital which employs it, will not thereby be diminished, no more than that of the above-mentioned artificers; but only left to find out the way in which it can be employed with the greatest advantage. It is certainly not employed to the greatest advantage when it is thus directed towards an object which it can buy cheaper than it can make. The value of its annual produce is certainly more or less diminished when it is thus turned away from producing commodities evidently of more value than the commodity which it is directed to produce. According to the supposition, that commodity could be purchased from foreign countries cheaper than it can be made at home. It could, therefore, have been purchased with a part only of the commodities, or, what is the same thing, with a part only of the price of the commodities, which the industry employed by an equal capital would have produced at home, had it been left to follow its natural course. The industry of the country, therefore, is thus turned away from a more to a less advantageous employment, and the exchangeable value of its annual produce, instead of being increased, according to the intention of the lawgiver, must necessarily be diminished by every such regulation."

Adam Smith, The Wealth of Nations, 1776
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21:31, 07 December, 2014 (UTC)
4,780.75 Increase 11.32 Increase 0.24%
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51,992.89 Increase 566.02 Increase 1.10%
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10,087.12 Increase 235.77 Increase 2.39%
4,419.48 Increase 95.59 Increase 2.21%
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20,087.23 Increase 662.85 Increase 3.41%
10,900.70 Increase 280.80 Increase 2.64%
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17,920.45 Increase 33.24 Increase 0.19%
24,002.64 Increase 170.08 Increase 0.71%
2,938.78 Increase 39.32 Increase 1.36%

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