According to the latest available purchasing power parity (PPP) data, China’s gross domestic product (GDP) in PPP terms overtook the USA’s in 2013, and now accounts for nearly 19% of the global…

Edie Purdie |

The ICP blog series explores ideas and issues under the International Comparison Program umbrella – including innovations in price and data collection, discussions on purpose and methodology, as…

Edie Purdie |

Mr. Kannan, a differently abled social entrepreneur. (Photo: Varalakshmi Vemuru) During my recent mission visit to Sivagangai District in Tamil Nadu, India, I met with Mr. Kannan, a social…

Varalakshmi Vemuru |

También disponible en español e português It’s tempting to think that this is just another Earth Day – after all, it has been celebrated since 1970. But perhaps this year should be different, at…

Karin Erika Kemper |

With deep azure skies, bountiful sunshine, and a crisp but mild breeze today, spring is by far my favorite season in Washington. Today marks the 40th year since the advent of Earth Day, an…

Joe Qian |