 The city will be relatively populous: its number of households is to remain permanently at  5,040.[20]  Immigration and emigration policies are designed to avoid population excess and deficiency. Each household will have an allotment consisting of two plots of land: one nearer the city’s center and one nearer its borders. Each household’s allotment is intended to be equally productive (Laws 737CE, 745CD) and to support a comfortable, although not luxurious, life for the household’s members. The households and land are not owned or farmed in common, but each shareholder must consider his share to be at the same time the common property of the whole city (Laws 740A3–6). Part of the sense in which the lot is in common is that it is inalienable and cannot be divided or aggregated: the assignment of the lot to a household is intended to support the household throughout the generations. (There are also restrictions on the use of the  land.[21]  ) Further, each household will help, out of its own resources, to fund Magnesia’s system of common  meals.[22]  Plato establishes four property classes: the members of the top or first class have assets worth between three and four times the value of the lot (and the tools and animals needed to farm it), the second class between two and three times this value and so  on.[23]  Anything accumulated over the highest amount will be confiscated by the city (Laws 744D–745A). Such assets do not include gold and silver, since these may be possessed only by the city; there will be only a token currency (Laws  742AB).[24]