 The American Panic of 1907 was an economic downturn that caused a sudden drop in demand for Mexican copper, silver, gold, zinc, and other metals.Mexico in turn cut its imports of horses and mules, mining machinery, and railroad supplies.The result was an economic depression in Mexico in 1908–1909 that soured optimism and raised discontent with the Díaz regime, thus helping to set the stage for revolution in 1910.