An interesting question I don't know the answer to but my gut feeling is that it would be very difficult to compare because the American civil war was fought for slavery which was an essential part of the existing economy, if it hurt the economy you could quite easily attribute that damage to the complete upheaval of the existing organisation of labour.
Did the last civil war hurt the economy? Might be dumb to compare, but others might do it anyways.
An interesting question I don't know the answer to but my gut feeling is that it would be very difficult to compare because the American civil war was fought for slavery which was an essential part of the existing economy, if it hurt the economy you could quite easily attribute that damage to the complete upheaval of the existing organisation of labour.