q,f Mich:t\'g,afi and thro,ugh ,funds granted to the Institute for Research on fFqverty,"'at· the-University of Wisconsin-Madison pursuant to the provisions " of the' Economic <ppportunity Act of 1964. The opinions expressed and any erro;rs' are the responsibility of the author. ' " This study is an investigation of the extended properties of income-leisure preference structures. The methodolog...