As the marginal productivity of parent time helping children is likely to be much higher for younger versus older children, we expect parents’ time to decline as children age.Footnote 17 While the Pulse Survey does not collect information on children’s ages, it collects the respondent’s date...
For compact digital cameras, which have much smaller sensors, the distance should be at least 100X the actual focal length (not the 35mm-equivalent): the field of view is about the same as an SLR with comparable pixel count. The recommended distance is described in geeky detail in Chart ...