Thursday, September 30, 2010
Wednesday, September 29, 2010
Here is the link for the classical manuals and guides of demographic methods and techniques issued by the United Nations over a long period of time. It presents a series of 23 manual organized by thePopulation Division of the Department of Economic and Social Affairs of the United Nations Secretariat.
Tuesday, September 28, 2010
Wednesday, September 22, 2010
The International Migration Institute (IMI) at the University of Oxford seeks to award two fully-funded DPhil studentships commencing 1 October 2011 for the ‘Determinants of International Migration’ (DEMIG) research project.
Closing date for applications: 30 September 2010
More information here.
Inspired by Bill Rankin’s Chicago Boundaries (2009), Eric Fischer mapped race and ethnicity for other 40 American cities! obs. Red is White, Blue is Black, Green is Asian, and Orange is Hispanic, and each dot is 25 people. Data from Census 2000.
Los Angeles(by Eric Fischer via FlowingData)
Monday, September 20, 2010
Thursday, September 16, 2010
Wednesday, September 15, 2010
Saturday, September 11, 2010
Again with the challenge of visualizing Migration: WNYC (a New York based public radio station) did an informal survey asking listeners their recente migration movements (. They offered the raw data (1,700 respondents) for free download and received 15 suggestions of visualization . These are my favorites (both interactive).
Life Cycle is a very important variable to understand demographics, though it's hard to represent it graphically. The Designer Ritwik Dey created an interesting way to visualize his own Life Cyle.
Friday, September 10, 2010
Joel Kotkin published an article suggesting 5 key reasons why China is not likely to become the world's largest economy. It caught my attention the fact that 4 of them are demographic-related in some way.
According to J. Kotkin, China is more likely to face problems such as (1) Scarce water, (2) lack of adequate energy resources and (3) limited food production over the next decades. As I was reading the article, I couldn't help remembering Malthus. In order to sustain economic growth, China will need to face a 4th obstacle: rapidly aging population and shrinking workforce (a clearly demographic problem).
By 2050 31% of China's population will be older than 60. “There will be over 400 million elderly, with virtually no social security and few children to support them”. And Kotkin also calls the attention to:
- The preference for male children has skewed sex demographics dramatically, with roughly 30 million more marriageable boys than girls.
- The logical solution to this dilemma would be immigration, but China's culture appears far too insular for such an event. Rather than a benevolent "socialist" super power China, whose population is made up over 90% Han Chinese, will bestride the world as a racially homogeneous, and communalistic "Middle Kingdom."
ps. The 5th key reason: Chinese political instability on the long run as a result of a combination of authoritarian regime and growing inequality
Thursday, September 9, 2010
Wednesday, September 8, 2010
I am currently working in a research project about regional urban systems in Brazil.
It's all about urban networks: urban functions and urban hierarchy; Christaller; spatial distribution of cities and how they connect to each other; Sassem; management centers; Growth Poles, Perroux etc.
And when it comes to network of cities, it's hard to find good visualization at the appropriate scale. So I post here some really extraordinary visualizations presented by BBC (series Britain From Above)
The Lights of Britain
Sunday, September 5, 2010
Professors Erle Ellis and Navin Ramankutty (University of Maryland) have come out with a new set of maps that show how anthromes (i.e. Anthropogenic biomes) have changed since the beginning of the Industrial Revolution.