When there is a surplus. Obviously the producer/seller has more of the item than the consumer/buyers want or need. Therefore, they (producers) are reducing the price to unload the item. A surplus tends to cause prices to fall.
"New factories in the U.S. offer higher
<span> wages for unskilled workers" is the best answer. Although these wages are still relatively low, they're higher than many immigrants would see back home. </span>
