I'm not sure it does. It seems to last similarly to me when I make my own as long as I make sure to use sterilized containers to make it and such. It isn't as long as margarine which is maybe the comparison? Not sure.
The unemployment rate is somewhat useful in aggregate but has a limitation in that it doesn't account for people who have given up seeking employment. Essentially it is a measure of the percentage of the workforce that has a job.
This stat makes a lot of sense for the most part. A stay-at-home parent isn't really unable to find work so shouldn't be counted in unemployment stats (for example).
But sometimes you miss the folk that have become disheartened. I know a few of those folk right now in the tech industry who want to look but just aren't. Our stats miss "mood" in a sense (hard to quantify of course).
reply