Final answer:
Most economies in the world are mixed, combining features of command and market systems. Countries like Russia and China have shifted towards market-oriented systems from command economies. The U.S. economy is positioned as market-oriented.
Explanation:
In reality, most economies in the world are mixed; they blend characteristics from command and market systems. The U.S. economy leans towards being market-oriented, while countries like Russia and China are closer to command economies despite moving towards market-oriented systems over time. For instance, post-Soviet Union dissolution, Russia began transitioning to a more market-based economy.
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