Unrecognizable. And I say that based on unravelling the threads that give us the Depression-era, a perfect storm of events true enough, but the market crash is but a symptom rather than a cause, although its impact upon confidence and finance is great enough to unravel a lot of American history too. I am reading Lords of Finance to get an idea of what made the Depression, seeking in those pages an idea of what is different in any ATL where paths diverge. ...
After you read all that, search out the literature on capitol investment cycles, the relation ship to that and the transition from 'mature' industries to new growing industries in certain economic sectors. ie: The transition from coal to petroleum, or from railway to automobile as the growth industry in that sector. It appears to me the 1920s/30s represented a perfect storm of economic sectors that were in the most volatile stage of transition. This wide spread volatility across the globe created large scale change in investment and labor, to the point of chaos. Aggravating factors were the after effects of the Great War, the conversion of the growing economy of the Russian empire into a economic nonentity of the USSR, the similar collapse of China into a ongoing civil war and even worse economic chaos.