“…Factors affecting household production time of the husband Number of children. In many studies, the sample has been limited to families consisting of husband, wife, and children (Barnett & Baruch, 1987;Berardo et al, 1987;Dolan & Scannell, 1987;Fox & Nickols, 1983;Goebel & Hennon, 1984; Hafstrom & Schram, 1983;Keith & Schafer, 1986;Lawrence et al, 1987;Lovingood & Firebaugh, 1978;Meiners & Olson, 1987;Nickols & Metzen, 1978;Rexroat & Shehan, 1987;Sanik, 1981;Schram & Hafstrom, 1986;Shelton, 1990;Stafford, 1983;Walker & Woods, 1976;Wheeler, 1984). In these studies, variation in the number of children is essentially the same as variation in the number of individuals in the household.…”