The answer is form a hypothesis.
Well there are many, low in food. People need homes, People need water, warmth and a hole lot more.
Hope this helps!
I believe it is British Columbia, Canada.
One of the main reason why more people didn't foresee the economic collapse of the 1930s is because it happened so quickly with no warning, since the US economy during the 1920s was incredibly strong and showed no signs of slowing.