Deirdre McCloskey, Gregory Clark, and Matt Ridley debate the cause(s) of the industrial revolution. McCloskey writes,

contrary to the usual declarations of the economists since Adam Smith or Karl Marx, the Biggest Economic Story was not caused by trade or investment or exploitation. It was caused by ideas. The idea of bourgeois dignity and liberty led to a rise of real income per head in 2010 prices from about $3 a day in 1800 worldwide to over $100 in places that have accepted the Bourgeois Deal and its creative destruction.