"what characteristic appears to be the major distinction between the two agarian zones in 18th century europe? "

This difference marks a cleavage that splits Agrarian  Fundamentalists into two factions-Tory and Marxist. The Tories believe  that large farms and enclosures maintained or increased farm employment  while increasing production even more; the result was a rise in both yields  and labour productivity. In contrast, the Marxists insist that the new  institutions reduced farm employment, thereby raising productivity. These  different views about farm operations have important implications for the  analyses of the contributions of agrarian change to manufacturing  development and of the causes of inequality.

a free market economy requires less state intervention. concurrently, it often requires a degree of democratisation of its institutions which- to a certain extent- facilitates economic activity. at the same time, a free market economy appears to be reliant on democracy for its functioning.

d: social contract theory