Ethnic group

# Overview
An ethnic group (also called a people or an ethnicity) is a group of human beings whose members identify with each other, usually on the basis of a presumed common genealogy or ancestry. Ethnic identity is also marked by the recognition from others of a group's distinctiveness and by common cultural, linguistic, religious, behavioral or biological traits.
According to the international meeting on the Challenges of Measuring an Ethnic World (1992), "Ethnicity is a fundamental factor in human life: it is a phenomenon inherent in human experience" despite its often malleable definitions. Others, like anthropologists Fredrik Barth and Eric Wolf, regard ethnicity as a result of interaction, rather than essential qualities of groups.
Processes that result in the emergence of such identification are called ethnogenesis. Members of an ethnic group, on the whole, claim cultural continuities over time, although historians and cultural anthropologists have documented that many of the values, practices, and norms that imply continuity with the past are of relatively recent invention.

# Defining ethnicity
The sociologist Max Weber once remarked that "the whole conception of ethnic groups is so complex and so vague that it might be good to abandon it altogether."
In any case, Weber proposed a definition of ethnic group that became accepted by many sociologists:
hose human groups that entertain a subjective belief in their common descent because of similarities of physical type or of customs or both, or because of memories of colonization and migration; this belief must be important for group formation; furthermore it does not matter whether an objective blood relationship exists.
Anthropologist Ronald Cohen, in a review of anthropological and sociological studies of ethnic groups since Weber, claimed that the identification of "ethnic groups" by social scientists often reflected inaccurate labels more than indigenous realities:
Cohen also suggests that claims concerning "ethnic" identity (like earlier claims concerning "tribal" identity) are often colonialist practices and effects of the relations between colonized peoples and nation-states.  Harold Isaacs has identified other diacritics (distinguishing markers) of ethnicity, among them physical appearance, name, language, history, and religion; this definition has entered some dictionaries. Social scientists have thus focused on how, when, and why different markers of ethnic identity become salient. Thus, anthropologist Joan Vincent observed that ethnic boundaries often have a mercurial character. Ronald Cohen concluded that ethnicity is "a series of nesting dichotomizations of inclusiveness and exclusiveness".  He agrees with Joan Vincent's observation that (in Cohen's paraphrase) "Ethnicity ... can be narrowed or broadened in boundary terms in relation to the specific needs of political mobilization.  This may be why descent is sometimes a marker of ethnicity, and sometimes not:  which diacritic of ethnicity is salient depends on whether people are scaling ethnic boundaries up or down, and whether they are scaling them up or down depends generally on the political situation.

# Ethnicity and race
Ethnicity and race are related concepts in that both are usually defined in terms of shared genealogy. Often, ethnicity also connotes shared cultural, linguistic, behavioural or religious traits. For example, to call oneself Jewish or Arab one immediately invokes a clutch of linguistic, religious, cultural and racial features that are held to be common within each ethnic category. Such broad ethnic categories have also been termed macroethnicity to distinguish them from smaller more subjective ethnic features, often termed microethnicity. Race, by contrast, refers to "some concentrations, as relative to frequency and distribution, of hereditary particles (genes) and physical characters, which appear, fluctuate, and often disappear in the course of time by reason of geographic and or cultural isolation."  In 1950, the UNESCO statement The Race Question, signed by some of the internationally renowned scholars of the time (including Ashley Montagu, Claude Levi-Strauss, Gunnar Myrdal, Julian Huxley, etc.), suggested that: "National, religious, geographic, linguistic and cultural groups do not necessarily coincide with racial groups: and the cultural traits of such groups have no demonstrated genetic connection with racial traits. Because serious errors of this kind are habitually committed when the term 'race' is used in popular parlance, it would be better when speaking of human races to drop the term 'race' altogether and speak of 'ethnic groups'."
In 1982, American cultural anthropologist, summing up forty years of ethnographic research, argued that racial and ethnic categories are symbolic markers for different ways that people from different parts of the world have been incorporated into a global economy.  According to Wolf, races were incorporated during the period of European mercantile expansion, and ethnic groups during the period of capitalist expansion:

# Ethnic stratification
In sociology and social theory, ethnicity can be viewed as a way of social stratification, meaning that ethnicity is the basis for a hierarchical arrangement of individuals. According to Donald Noel, a sociologist who developed a theory on the origin of ethnic stratification, ethnic stratification is a "system of stratification wherein some relatively fixed group membership (e.g., race, religion, or nationality) is utilized as a major criterion for assigning social positions" Ethnic stratification is one of many different types of social stratification, including stratification based on socio-economic status, race, or gender.
According to Donald Noel, ethnic stratification will emerge only when specific ethnic groups are brought into contact with one another, and only when those groups are characterized by a high degree of ethnocentrism, competition, and differential power. Ethnocentrism is the tendency to look at the world primarily from the perspective of one's own culture, and to downgrade all other groups outside ones own culture. Some sociologists, such as Lawrence Bobo and Vincent Hutchings, say the origin of ethnic stratification lies in individual dispositions of ethnic prejudice, which relates to the theory of ethnocentrism
Continuing with Noels theory, some degree of differential power must also be present for the emergence of ethnic stratification. In other words, an inequality of power among ethnic groups means "they are of such unequal power that one is able to impose its will upon another". In addition to differential power, a degree of competition structured along ethnic lines is a prerequisite to ethnic stratification as well. The different ethnic groups must be competing for some common goal, such as power or influence, or a material interest such as wealth or territory. Lawrence Bobo and Vincent Hutchings propose that competition is driven by self-interest and hostility, and results in inevitable stratification and conflict.

# Ethnicity and nation
In some cases, especially involving transnational migration, or colonial expansion, ethnicity is linked to nationality.  Many anthropologists and historians, following the work of Ernest Gellner and Benedict Anderson see nations and nationalism as developing with the rise of the modern state system in the seventeenth century, culminating in the rise of "nation-states" in which the presumptive boundaries of the nation coincided (or ideally coincided) with state boundaries.
Thus, in the West, the notion of ethnicity, like race and nation, developed in the context of European colonial expansion, when mercantilism and capitalism were promoting global movements of populations at the same time that state boundaries were being more clearly and rigidly defined.  In the nineteenth century, modern states generally sought legitimacy through their claim to represent "nations."  Nation-states, however, invariably include populations that have been excluded from national life for one reason or another.  Members of excluded groups, consequently, will either demand inclusion on the basis of equality, or seek autonomy, sometimes even to the extent of complete political separation in their own nation-state.  Under these conditions - when people moved from one state to another, or one state conquered or colonized peoples beyond its national boundaries - ethnic groups were formed by people who identified with one nation, but lived in another state.

# Ethno-national conflict
Sometimes ethnic groups are subject to prejudicial attitudes and actions by the state or its constituents. In the twentieth century, people began to argue that conflicts among ethnic groups or between members of an ethnic group and the state can and should be resolved in one of two ways.  Some, like Jurgen Habermas and Bruce Barry, have argued that the legitimacy of modern states must be based on a notion of political rights of autonomous individual subjects.  According to this view the state should not acknowledge ethnic, national or racial identity but rather instead enforce political and legal equality of all individuals.  Others, like Charles Taylor and Will Kymlicka argue that the notion of the autonomous individual is itself a cultural construct.  According to this view, states must recognize ethnic identity and develop processes through which the particular needs of ethnic groups can be accommodated within the boundaries of the nation-state.
The nineteenth century saw the development of the political ideology of ethnic nationalism, when the concept of race was tied to nationalism, first by German theorists including Johann Gottfried von Herder. Instances of societies focusing on ethnic ties arguably to the exclusion of history or historical context have resulted in the justification of nationalist goals. Two periods frequently cited as examples of this are the nineteenth century consolidation and expansion of the German Empire and the Third (Greater German) Reich, each promoted on the pan-ethnic idea that these governments were only acquiring lands that had always been ethnically German. The history of late-comers to the nation-state model, such as those arising in the Near East and south-eastern Europe out of the dissolution of the Ottoman and Austro-Hungarian Empires, as well as those arising out of the former USSR, is marked by inter-ethnic conflicts that usually occurs within multi-ethnic states, as opposed to between them, in other regions of the world; thus, those other conflicts are often misleadingly labelled and characterized as "civil war."

# Ethnicity in specific countries
In the United States of America, collectives of related ethnic groups are typically denoted as "ethnic." Most prominently in the U.S., the various Latin American racial and ancestral groups are typically grouped as either "Hispanics" or "Latinos" (although sometimes some white American lump black Latinos with black Americans. The many previously designated 'Oriental' ethnic groups are designated as Asian ethnic groups and similarly linked together as "Asians." The terms "Black" and "African-American," while different, usually describe the descendants whose ancestors were indigenous to Africa and generally excludes the African descendants of European colonists. Even the racial term "White American" generally describes people whose ancestry can be traced to Europe (including non-European nations such as Argentina, Australia, and Canada where European ancestry contributes to the overall populations) who now live in the United States. "Middle Easterners" are peoples from the Middle-East, i.e. Southwest Asia and North Africa. These countries include Iran, Turkey, Tunisia, Iraq, Saudi Arabia, Egypt, Libya, Algeria, and Morocco. (The U.S. Census Bureau compiled a list of ethnic groups which may be seen at Ethnicity (United States Census)).
In the United Kingdom, different classifications, both formal and informal, are used. Perhaps the most accepted is the National Statistics classification, identical to that used in the 2001 Census in England and Wales (see Ethnicity (United Kingdom)). In general popular use in the United Kingdom and Europe, the terms oriental and Asian are widespread and without negative connotation, with the latter term usually reserved in the United Kingdom for people from the Indian subcontinent (see British Oriental and British Asian for more details).
China officially recognizes 56 ethnic groups of which the majority is comprised by the Han Chinese. Many of the ethnic minorities maintain their own individual culture and language, although many are also becoming more like the Han Chinese. Han Chinese predominates most areas of China with the exception of Tibet and Xinjiang where the Han are still in the minority. The Han Chinese are the only ethnic group bound by the One-child policy. (For more details, see List of ethnic groups in China and Ethnic minorities in China.)
In France, no population census includes ethnic categories, and the government is prohibited from collecting, maintaining or using ethnic population statistics. The current French government, led by Nicolas Sarkozy and Francois Fillon, has begun a legislative process to repeal this prohibition.