He has written The Big Mo (book): Why Momentum Rules The World (2011),[1][2][3][4] and Unnatural Selection: Why The Geeks Will Inherit The Earth (2013).

His father, Reuben Mendick, was a medical doctor and dux of George Heriot's School in Edinburgh, Scotland.

[10] Roeder's book, The Big Mo (2011), explores the role that large-scale momentum played in the global financial crisis.

[11][12][13][14] It was described by the Financial Times as 'A compelling book that journeys seamlessly from finances to the Iraq war, from oil prices and climate change to religion and pop culture in an effort to explain how we behave and why we are so easily led.

'[1] Roeder explained that, Recent technological advances, such as computer-driven trading programs, together with the increasingly interconnected nature of markets, have magnified the momentum effect.