If you want to get technical, once the President assumes the Role of Commander in Chief of the United States Military he has control over all military action while congress; per the original intent of the constitution, has control over starting war and ending it. If you really had to choose one or the other the Commander in Chief has in most occurrences decided how war ends. I really hope this helped, if not my apologies and if you need any more elaboration please let me know down in the comments and I will do my best.
Well, pre-1930s, our economy was booming due to The Great War (WW1), after the war ended, our economy slowly fell, resulting in the Stock Market Crash. After the Stock Market Crash, farm prices raised significantly due to the lack of crops coming in from farmers (due to the dust bowl) after our economy became stable, prices eventually evened out.
