Last week Vox published an article on the global poverty debate. The piece – by journalist Dylan Matthews – raises a few issues that I think are worth addressing. I set out nine brief points here, responding to specific quotes from the article.
1. “As Roser is quick to note, it’s not ‘his’ chart — it’s similar to charts many economists working on poverty have produced, such as one in Georgetown professor Martin Ravallion’s book The Economics of Poverty.”
There is in fact a key difference between the two charts. It all comes down to context. Ravallion’s is in an academic text that is intended primarily for circulation among academics. The inadequate nature of the long-term poverty estimates is well known among academics, who take them with a big grain of salt. Roser’s chart, on the other hand, is an infographic designed for mass consumption on social media. The chart itself – as in the version Gates tweeted – makes no reference whatsoever to the problems with the data. On the contrary, it creates a powerful illusion of certainty. A key piece of my argument has been to say that this is irresponsible public communication. That’s why I say the chart should be taken down.
2. “Roser, as he stressed repeatedly in messages to me, just wants to be clear on what the facts say.”