Nonseparable Preferences, Fiscal Policy Puzzles, and Inferior Goods
证明，在无摩擦商业周期模型中，消费与闲暇的不可分偏好能解释政府支出增加时私人消费上升的现象，但前提是消费品为低档品。
Nonseparable preferences over consumption and leisure can generate an increase in private consumption in response to government spending, as found in the data, in a frictionless business cycle model. However, the conditions on preferences required for these result to obtain hold if and only if the consumption good is inferior. Similarly, positive co‐movement of consumption and hours worked occurs if and only if either consumption or leisure is inferior.