| 1 | The state policies of "not banning the annexation" led to making a sharp contradiction over land during the Sung Dynasty and the "compartmentalized land" became the dream that haunted the Song people. | |
| 2 | This essay is trying to construct an analysis frame in economics in order to reinvestigate such problems as origin, form and degeneration. | |
| 3 | Under the square-fields system, the farmland as salary was stable and could run in the family because the aristocratic titles were hereditary. |