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Tag Archives: world poverty

texting is 20 years old

Only 3 years ago in sub-Saharan Africa, more than two-thirds of all roads were unpaved, three-quarters of the population was without electricity, and there were 3 landline phones per 100 people.

Enter the cell phone.

As of 2010, in low and middle income economies, an average of 72 of every 100 people had a mobile phone subscription. In a 2010 article, economists Jenny Aker and Isaac Mbiti present wonderful examples of how cell phones can transform life. ”In Ghana, farmers in Tamale are able to send a text message to learn corn and tomato prices in Accra, over 400 kilometers away. In Niger, day laborers are able to call acquaintances in Benin to find out about job opportunities without making the US$40 trip. In Malawi, those affected by HIV and AIDS can receive text messages daily, reminding them to take their medicines on schedule.” (p. 207)

More generally, the impact of widespread mobile phone use could include:

  • increasing market efficiency
  • improving supply chain oversight
  • creating new jobs
  • reducing risk exposure through more communication
  • delivering necessary services (health, finance, education)

 

Still though, Aker and Mbiti conclude that we cannot be sure of the mobile phone’s impact. By contrast, development economist Jeffrey Sachs suggests that it will be a transformative technology.

Rewinding for a moment to the US economy, I keep thinking of our development sequence. Moving from the first 17th and 18th century roads to 19th century canals and railroads, by 1900, the US had a transportation infrastructure. Add to that the telegraph, telephone and spread of electricity. And now, mobile phones.

Today, instead, leapfrogging older communications technology,  will the mobile phone stimulate sub-Saharan economic development?

A Final Fact: During the week of March 1, 2012, China reached its 1 billionth mobile phone subscription. The Economist says China’s numbering system can generate 100 billion phone numbers.

Sources and Resources: The 2010 Aker/Mbiti article and the 2012 World Bank report provided my information on mobile phones through a wealth of ideas and detail. This Economist Daily Chart comparing mobile phones in China, India and the US is also interesting.

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How rich is the U.S.? Economist Branco Milanovic, in The Haves and the Have-Nots, gives us a really interesting answer.

The poorest people in the U.S. are richer than most of the higher income individuals in other countries. Specifically, the poorest 5% of all Americans rank 68% in terms of world incomes. In other words, our poorest are richer than 2/3 of the world (p. 117).

The Economic Lesson

While Dr. Milanovic is looking at worldwide income distribution, we can also look at income distribution at home. In the U.S., our national income comes from wages and salaries, rent, interest, dividends and profits from businesses that are not incorporated.

To picture our income distribution, please think of a pie as the total national income and then individual slices as the proportion that different groups receive. That would mean that if total national income were $1,000 and a society had only five households (people living together), then if every household earned $200, distribution was equal. By contrast, if one family earned $800, then, because $200 remained for everyone else, there would be considerable inequality. Recently, the top quintile of households in the U.S. earned close to 50% of all income. This quintile approach for representing income distribution was developed by statistician Max Lorenz. 

You can see Dr. Milanovic’s graph for worldwide income distribution here.

 

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