Dispersion — may refer to: In physics: The dependence of wave velocity on frequency or wavelength: Dispersion (optics), for light waves Dispersion (water waves) Acoustic dispersion, for sound waves Dispersion relation, the mathematical description of… … Wikipedia
Dispersion (homonymie) — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. En optique, la vitesse de la lumière dans le vide ne dépend pas de sa longueur d onde, mais dans certains milieux, elle peut en dépendre : c est le… … Wikipédia en Français
Dispersion — A term used in statistics that refers to the location of a set of values relative to a mean or average level. In finance, dispersion is used to measure the volatility of different types of investment strategies. Returns that have wide dispersions … Investment dictionary
Statistical dispersion — In statistics, statistical dispersion (also called statistical variability or variation) is variability or spread in a variable or a probability distribution. Common examples of measures of statistical dispersion are the variance, standard… … Wikipedia
Arbitrage (finance) — Pour les articles homonymes, voir arbitrage. L arbitrage est une opération financière assurant un gain positif ou nul de manière certaine. Par exemple en prenant simultanément et en sens contraire position sur plusieurs actifs dérivés différents… … Wikipédia en Français
government economic policy — ▪ finance Introduction measures by which a government attempts to influence the economy. The national budget generally reflects the economic policy of a government, and it is partly through the budget that the government exercises its three … Universalium
United Kingdom — a kingdom in NW Europe, consisting of Great Britain and Northern Ireland: formerly comprising Great Britain and Ireland 1801 1922. 58,610,182; 94,242 sq. mi. (244,100 sq. km). Cap.: London. Abbr.: U.K. Official name, United Kingdom of Great… … Universalium
NEW YORK CITY — NEW YORK CITY, foremost city of the Western Hemisphere and largest urban Jewish community in history; pop. 7,771,730 (1970), est. Jewish pop. 1,836,000 (1968); metropolitan area 11,448,480 (1970), metropolitan area Jewish (1968), 2,381,000… … Encyclopedia of Judaism
Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… … Universalium
UNITED STATES OF AMERICA — UNITED STATES OF AMERICA, country in N. America. This article is arranged according to the following outline: introduction Colonial Era, 1654–1776 Early National Period, 1776–1820 German Jewish Period, 1820–1880 East European Jewish Period,… … Encyclopedia of Judaism
