城市居民非工作活动的家内外时间分配及影响因素——以北京上地—清河地区为例
陈梓烽, 柴彦威

Time allocation to in-home and out-of-home non-work activities of urban residents: A case study of Shangdi-Qinghe area in Beijing
CHEN Zifeng, CHAI Yanwei
图2 模型A 工作日模型 和模型B 休息日模型 的直接效应概念框架
Fig. 2 Flow diagram of postulated direct effects for Model A and Model B