What was the main reason why australia's economy collapsed right before the great depression began?

The government made poor decisions, is the right answer.

Explanation:

The Great Depression of the 1930's badly hit Australia, but the main reason why the economy of Australia collapsed right before the Great Depression was that the government of Australia made poor decisions. Throughout the period of the Great Depression, Australia experienced years of extraordinary unemployment, falling incomes, low profits, poverty, lost opportunities for financial growth and individual improvement.

by 1880, germany had more rail lines than great britain and russia.