tag:blogger.com,1999:blog-2830084253401570472.post2362807679109394050..comments2024-03-28T09:22:36.967+13:00Comments on Offsetting Behaviour: Limit fast food outlets?Eric Cramptonhttp://www.blogger.com/profile/15831696523324469713noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-2830084253401570472.post-12533809502022594572013-07-05T04:16:47.405+12:002013-07-05T04:16:47.405+12:00Must have overlooked the bit about the summary mea...Must have overlooked the bit about the summary measure.LemmusLemmusnoreply@blogger.comtag:blogger.com,1999:blog-2830084253401570472.post-55516580030862705792013-07-04T21:38:50.476+12:002013-07-04T21:38:50.476+12:00She notes that there's no particular differenc...She notes that there's no particular difference when using the summary measure, but I'll check whether she used that without the individual restaurant controls. There are just so many more fish and chip shops and other restaurants relative to McD's that I have a hard time seeing substantial collinearity between the McD numbers and the overall figure...Eric Cramptonhttp://offsettingbehaviour.blogspot.com/noreply@blogger.comtag:blogger.com,1999:blog-2830084253401570472.post-40814602763753058632013-07-04T18:47:51.715+12:002013-07-04T18:47:51.715+12:00Regarding the paper, I would check whether maybe t...Regarding the paper, I would check whether maybe the funny results for the fast food restaurants are due to collinearity. What happens when one uses a summary measure of fast food restaurant density?<br /><br />More generally, I have a problem with the interpretation of the results that I have with most IV papers. IV regressions (if they work) measure the effect of the endogenous regressor on the dependent variable *as influenced by the instrument*. I'm no expert, but it seems obvious that some of the correlation between mother's and child's weight is due to genes. The analysis in question, in contrast, measures the effects of maternal overweight to the extent that maternal overweight is influenced by the specific environmental channels that the instruments measure. This makes the paper more interesting from a policy perspective. For example, if we knew that the causal influence of maternal on babies' weight were through genetic channels only, this should lead us to not worry (in this respect) about the harmful effects of these environmental factors.LemmusLemmusnoreply@blogger.comtag:blogger.com,1999:blog-2830084253401570472.post-2083738845571428522013-07-04T12:12:20.958+12:002013-07-04T12:12:20.958+12:00Idle speculation..
Kids who graze at such places...Idle speculation..<br /><br /><br />Kids who graze at such places to and from school and maybe during the lunch hour will usually be *walking* with quite a few kilograms in a backpack. The exercise might be burning off at least some of the extra calories.<br /><br /><br />JCJCnoreply@blogger.comtag:blogger.com,1999:blog-2830084253401570472.post-59583001997258349322013-07-04T12:00:01.538+12:002013-07-04T12:00:01.538+12:00The story I read in the herald about the interns s...The story I read in the herald about the interns study just had this recommendation about limiting the number of fast food outlets. It didnt even explain what the study was or what the findings were etc. I found it very bizarre.swannoreply@blogger.com