In 2009, a wave of protests gripped primarily Tehran, following what millions of Iranians believed was a rigged presidential election result. The protests that erupted across the country in December 2017 had more complex roots. We wonder: Which of the following factors were key?
D. Lack of transparency
In 2009, for the first time in history over half of the world’s population lived in urban areas. As of 2015, there are about 500 metropolitan areas around the world with a population of one million people or more. We wonder: How many of these million-people cities are in China alone?
As of 2007, for the first time in human history, more of the world’s population lived in urban areas than in rural areas. But cities account for an even greater share of global economic growth. We wonder: Which world city has the largest economy?
C. New York City