Помогите пожалуйста)) Выберите подходящее по смыслу слово из предлагаемых в скобках вариантов.

Выберите подходящее по смыслу слово из предлагаемых в скобках вариантов.
1. (A command economy /a free market economy) is a society where the government makes all decisions about production and consumption.
2. (Economics/Economy) studies how markets and prices allow society to solve the problems of what, how, and for whom to produce.
3. Every economist sees (the restriction/the importance) of the question of what, how, and for whom to produce.
4. Nations have different (consumption / levels) of farm production.
5. When (the price /the importance) of some goods grows, people will try to use less of them but producers will want to produce more of them.
6. In (mixed/both) countries, Canada and the USA structural changes in the agricultural sector of economy have become of interest to economists and general public in the 80s and 90s of the 20th century.
7. After years of competition between command and market economies, (the former / the latter) gave way in many countries of the world to (the former/ the latter).