"Historically, the product life-cycle theory seems to be an accurate explanation of international trade patterns. The theory was based on the observation that, for most of the twentieth century, a very large proportion of the worlds new products had been developed by U.S. firms and sold first in the U.S. market (e.g., mass-produced automobiles, televisions, instant cameras, photocopiers, personal computers, and semiconductor chips). This evolutionin the pattern of international trade is consistent with the predictions of the product life-cycletheory that mature industries tend to go out of the United States and into low-cost assembly locations." Based on the above statement, elaborate further how the trade works? Support your answer with relevant examples