The correct answer to this open question is the following.
There is no question here, just a statement. You forgot to include it.
So if the question is a true or false question, the answer would be "true."
If the question is to elaborate on the topic, we can say the following.
Yes, those factors contributed to the crash if the United Stock market. However, historians and economists put emphasis on the act that the United States came from an exessive consumerism period called the "Roaring 1020s," in which American people spent a lot of money on necessary and unnecessary things such as electro domestics, cars, and houses. Most of those purchases were on credit, and that was a big problem.
The US stock market crashed on October 29, 1929, and this represented the beginning of the Great Depression in which millions of Americans lost their jobs, companies closed, and banks went into bankruptcy.