What was the effect of the stock market crash in 1929?

The great depression

What was the effect of the stock market crash in 1929?

Explanation:

The Crack of the 29 was the most devastating fall of the stock market in the history of the Stock market in the United States, taking into account the global reach, the long duration of its sequels, and that gave rise to the Crisis of 1929 also known as The great Depression.

The answer is: It unleashed a chain of events that led to the global economic crisis.