Final answer:
Products such as smartphones or electric vehicles demonstrate the strengths of a free enterprise system, as command economies do not typically foster such innovation due to government-controlled production and a lack of market-driven incentives.
Step-by-step explanation:
When thinking of a product that has been developed or modified due to changes in the marketplace, examples could include smartphones, streaming services, or electric vehicles. Such innovations are typically not produced in a command economy due to the lack of market signals and incentives for innovation. In these economies, the government, rather than consumer preferences, directs production, which often leads to inefficiencies and a lack of product diversity.
Free enterprise economies thrive on competition and individual initiative, allowing businesses to respond to consumer demands and innovate accordingly. These economies showcase market responsiveness and consumer sovereignty, as the decisions of what to produce are determined by market demand, leading to a dynamic environment where new and improved products are continually developed.