8Apps & Rees(2010), "Family labor supply, taxation and saving in an imperfect capital market", Review of Econom- ics of the Household 8:297-323.
9Aronsson, Daunfeldt & Wikstrom (2001), "Estimating intra- household allocation in a collective model with household pro- duction", Journal of Population Economics 14(4) : 569- 584.
10Biddle & Hamermesh(t990), "Sleep and the allocation of time", Journal of Political Economy 98 (5) : 922 - 43.