Quantity Rationing and Concavity in a Flexible Household Labor Supply Model
推导了Hausman和Ruud(1984)需求系统的直接效用函数、条件需求方程和凹性条件，并将其用于实证家庭劳动供给模型，考虑预算约束和失业福利，发现凹性约束对一致估计是必要的。
In the first part of this paper, the authors derive explicit expressions for the direct utility functions, conditional demand equations, and concavity conditions in both price/income and quantity space for the demand system introduced by Hausman and Ruud (1984). These results are then used in an empirical static family labor supply model, in which kinked budget constraints and unemployment benefits are taken into account for both spouses. Imposition of concavity is necessary for consistent estimation and the concavity constraint appears to be binding. Copyright 1990 by MIT Press.