I believe Mr. Ransomsbooms book seems to justify the claims of Mississippis Justification for secession, interms of economics.
That the Southern system of Chatel Slavery was economically viable, is hard to refute. If Economics is the only criteria to judge viability.
Yes, and even after the abolition of slavery the cotton economy did bounce back to it's pre-war productivity by the end of the 1870's. The Age of the Cotton Barons as it was lasted all the way up into the 1910s. The Boll Weevil still killed it, and forced an economic diversification, and the cotton economy of the Mississippi Delta never came back from it.
I've long posited, had the CSA become independent, chattel slavery would have lasted roughly 40 more years. The Boll Weevil would still cross into Texas and ravage the cotton states until slavery is abolished by either populist mandate, or near economic collapse between 1900-1910.