Why did the Song Dynasty strengthen centralization, regardless of land annexation, and not emphasize agriculture and restrain commerce? For the college thesis.
Because the Song Dynasty valued literature over martial arts, the literati used political power to annex land, which showed that they were insatiable and had no ambition. Therefore, regardless of land merger, land trade was cut off by Xixia in Song Dynasty, so overseas trade was encouraged, tax sources were increased and financial difficulties were solved.