RT Journal Article SR 00 ID 10.1287/moor.4.1.31 A1 Balinski, M.L. A1 Young, H.P. T1 Quotatone Apportionment Methods JF Mathematics of Operations Research YR 1979 FD 1979-02 VO 4 IS 1 SP 31 OP 38 AB The problem of apportionment is that of allocating an integer number of seats “proportionally” among a set of states or regions as a fraction of their populations. An apportionment method satisfies quota if it accords to each state the exactly proportional (rational) number of seats due it rounded up or rounded down. A method is house monotone if no state’s allocation goes down when the total number of seats to be distributed goes up. This paper gives a simple characterization of all house monotone methods satisfying quota. Further, a manner of exposition is formulated which unites several key house monotone apportionment methods, thus showing clearly their connections. PB INFORMS SN 0364-765X LK https://pure.iiasa.ac.at/id/eprint/14051/