Who Is The Better Forecaster, The Economist Or The Climate Scientist?

I was looking at this wonderful chart from Business Insider and from Bloomberg LP Chief Economist Michael McDonough and wondered who was the better forecaster, the economist or the climate scientist. As we can see from the chart the GDP forecasts for the last couple of years are particularly bad. In four out of four years the forecasts start out 50% to 100% too high. That is impressive! Winking smile

GDP_optimism1

Here is my favorite chart from that other dismal science, climate science. Although this is not a fair comparison the climate scientists are wrong only 95% of the time! They win!

CMIP5-90-models-global-Tsfc-vs-obs-thru-2013a