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Articles in Population Geography

Is the Georgian language related to Basque, another European “outlier”?

By Asya Pereltsvaig | January 20, 2012 | 16 Comments

[This post is written in collaboration with Martin W. Lewis]
The history of the Georgian language reveals some interesting patterns of cross-cultural interaction. Georgian can be traced back to a ancestral language— Proto-Kartvelian—that it shares with its close relatives: Mingrelian, Svan and Laz. Spoken in the second millennium BCE, Proto-Kartvelian must have interacted closely with Proto-Indo-European, the ancestral tongue to most …

Genetic clues to the Ossetian past

By Asya Pereltsvaig | January 18, 2012 | 22 Comments

[Many thanks to Dave Howard for his assistance with this post!]
While it is indisputable that Ossetians speak an Iranian language, it is not immediately apparent whether they descend from an Iranian group such as the Alans, or alternatively if they are descendants of one of the autochthonous groups from the Caucasus, which adopted an Iranian language in the early Middle …

Peoples, Languages and Genes in the Caucasus: An Introduction

By Asya Pereltsvaig | January 12, 2012 | 29 Comments

The Caucasus region, dominated by the imposing Great Caucasus mountain range and stretching between the Black Sea and the Caspian Sea, has long been known as one of the world’s ethnically and linguistically most diverse areas. According to the Roman historian Pliny, when the Romans came to the Caucasus, they needed 134 interpreters to deal with the jumble of languages …

Same-Sex Couples and Native American Communities

By Martin W. Lewis | October 12, 2011 | 2 Comments
Map of Native Americans by County

On October 10, 2011, Andrew Sullivan’s blog ran a corrected U.S. Census map showing the proportion of same-sex couples in American counties. (An interactive version of the same map was posted on the National Public Radio website.) The Census had originally claimed that there were 901,997 self-reported same-sex couples in the United States. Evidently, a

Last Insights into Global Economic Inequality

By Andrew Linford | June 8, 2011 | One Comment

Calculations of economic development are usually separated from considerations of population and physical geography. The map above, which introduces the concept of GDP Density. This approach shows how much economic value is generated per unit of land. The map clearly displays not only which areas are the most economically productive, but it also shows

The End of Schengenland?

By Martin W. Lewis | May 14, 2011 | 4 Comments
Map of Europe's Evolving Borders

Over the past several decades, Europe has been dismantling border controls, creating the zone of free movement informally known as Schengenland. Although the Schengen area is scheduled to expand into the southeastern European Union countries of Bulgaria, Romania, and even divided Cyprus, such a development seems increasingly unlikely. Even in the core EU countries, the

The Demographic Dimensions of the Conflict in Ivory Coast

By Martin W. Lewis | May 3, 2011 |
Map of population density in West Africa, 1960

Migration has played a major role in Ivory Coast’s recent troubles. As immigrants from neighboring countries have moved in, Ivorian nativists have reacted by seeking to exclude foreigners—and their children—from citizenship. Such anti-immigrant attitudes and resulting policies have in turn provoked both migrant communities and members of related ethnic groups living in northern Ivory Coast

India and China: The World’s Demographic Giants

By Martin W. Lewis | July 15, 2010 | 2 Comments

It is common knowledge that China and India are the two most populous countries in the world. What is less commonly appreciated is the fact that they demographically tower over almost every other sovereign state. Whereas China has some 1.3 billion inhabitants and India is closing in on 1.2 billion, only two other countries have

Migration and Diplomatic Tensions In Costa Rica

By Martin W. Lewis | July 7, 2010 | 2 Comments

Nicaragua, the poorest country in continental North America by a good margin, sends immigrants not only northward into Mexico and the United States but also southward into Costa Rica. The economic disparity along Nicaragua’s lightly policed southern border is steep and Costa Rica, unlike Nicaragua, is known for its political stability, effective government, and high

Regional Economic Disparities and Migration in Mexico

By Martin W. Lewis | July 6, 2010 | One Comment

On the global scale, Mexico is a middle-income country, a fact lost on most Americans. According to the IMF, it ranks 60 out of 184 in per capita Gross Domestic Product. Measured in purchasing power parity (PPP), Mexico produces roughly $13,600* worth of goods and services per person per year, a figure