What qualities is a sign that a country has a market economy?

Private ownership, freedom of choice, self-interest, optimized buying and selling platforms, competition, and limited government intervention are some of the signs that a country has a market economy. :)

d. stage 4

explanation:

the existence of some kind of demographic transition is widely accepted in the social sciences because of the well-established historical correlation linking dropping fertility to social and economic development.[1] scholars debate whether industrialization and higher incomes lead to lower population, or whether lower populations lead to industrialization and higher incomes. scholars also debate to what extent various proposed and sometimes inter-related factors such as higher per capita income,lower mortality, old-age security, and rise of demand for human capital are involved.[2]

answer; the nazca plate is converging with the south american plate