What was the Roman Empire’s GDP?

BBC Radio: What was the Roman Empire's GDP?

While troubles in today's economy are creating headlines, one academic economist, Angus Maddison, has been devoted to compiling statistics on world economies on a slightly longer time horizon, since the year 1AD. He explains how you can work out the GDP of the Roman Empire.

Maddison is the economic historian I reference in today's post about worldwide per capita income. This is an interesting audio clip about 4.5 minutes long.