Jianguo Liu of Michigan State University, U.S.A., found that even in countries whose populations are declining, the number of households is rising as families fragment and children set up homes on their own.
USA - s Michigani ülikoolis töötava dr Jianguo Liu korraldatud rahvusvahelises uuringus selgus, et isegi riikides, kus rahvaarv väheneb, suureneb leibkondade arv, sest lapsed kolivad omaette elama.