The Engel Curves of Non-Cooperative Households
研究了非合作家庭模型下恩格尔曲线系统的充要条件，这些条件刻画了家庭消费随收入和分配因素变化的局部特征，并可用工具变量法检验。
Abstract We provide a set of necessary and sufficient conditions for a system of Engel curves to have been generated by a non-cooperative model of family behaviour. These conditions fully characterise the local behaviour of household-level consumption in the cross-section, i.e., as a function of total income and distribution factors. In this setting, any demand system compatible with a non-cooperative model is also compatible with a collective model, but the converse is not true. We describe how these nested conditions may be tested using standard instrumental-variables strategies.