The correct answers are:
- The Soviet Union practiced command economy;
- The United States practiced and still practices a market economy;
The Soviet Union was a country with socialist ideology, and as all other socialist countries, they too practiced command economy, and also inspired lot of other countries to do so. But as the history had shown multiple times, this typo of economy is too hard to maintain.
The United States, on the other hand, are a country based on the ideology of the capitalism, and because of that, the country practiced and still practices a market economy, which so far has proven as more successful than the command economy type.
